stevens satcomm goes ver 2.0 satellite transmitter to be used. if continuous self-timed message...

Stevens SatComm GOES VER 2.0

Satellite Transmitter

INSTRUCTION Manual March 2013

Contents ________________________________________________________

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SECTION LIST: 1 INTRODUCTION ......................................................................... 2 2 INSTALLATION .......................................................................... 5 3 QUICK START ............................................................................ 11 4 OPERATION .............................................................................. 18 5 MAINTENANCE AND TROUBLESHOOTING ............................ 52 6 APPENDICES ............................................................................ 55 NOTE: A detailed Section Index is located on the first page of each Section.

Safety and Equipment Protection ________________________________________________________

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WARNING! ELECTRICAL POWER CAN RESULT IN DEATH, PERSONAL INJURY OR CAN CAUSE DAMAGE TO EQUIPMENT. If the instrument is driven by an external power source, disconnect the instrument from that power source before attempting any repairs. WARNING! BATTERIES ARE DANGEROUS. IF HANDLED IMPROPERLY, THEY CAN RESULT IN DEATH, PERSONAL INJURY OR CAN CAUSE DAMAGE TO EQUIPMENT. Batteries can be hazardous when misused, mishandled, or disposed of improperly. Batteries contain potential energy, even when partially discharged. WARNING! ELECTRICAL SHOCK CAN RESULT IN DEATH OR PERSONAL INJURY. Use extreme caution when handling cables, connectors, or terminals; they may yield hazardous currents if inadvertently brou into contact with conductive materials, including water and the human body. CAUTION! Be aware of protective measures against environmentally caused electric current surges. In addition to the previous warnings and cautions, the following safety activities should be carefully observed.


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Children, Adolescents NEVER give batteries to young people who may not be aware of the hazards associated with batteries and their improper use or disposal. Jewelry, Watches, Metal Tags To avoid severe burns, NEVER wear rings, necklaces, metal watch bands, bracelets, or metal identification tags near exposed battery terminals. Heat, Fire NEVER dispose of batteries in fire or locate them in excessively heated spaces. Observe the temperature limit listed in the instrument specifications. Charging NEVER charge "dry" cells or lithium batteries that are not designed to be charged. NEVER charge rechargeable batteries at currents higher than recom-mended ratings. NEVER recharge a frozen battery. Thaw it completely at room temperature before connecting charger. Unvented Container NEVER store or charge batteries in a gas-ti container. Doing so may lead to pressure buildup and explosive concentrations of hydrogen. Short circuits NEVER short circuit batteries. High current flow may cause internal battery heating and/or explosion. Damaged Batteries Personal injury may result from contact with hazardous materials from a damaged or open battery. NEVER attempt to open a battery enclosure. Wear appropriate protective clothing, and handle damaged batteries carefully. Disposal ALWAYS dispose of batteries in a responsible manner. Observe all applicable federal, state, and local regulations for disposal of the specific type of battery involved.

NOTICE Stevens makes no claims as to the immunity of its equipment against lightning strikes, either direct or nearby.


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The following statement is required by the Federal Communications Commission: WARNING - This equipment generates, uses, and can radiate radio frequency energy, and, if not installed in accordance with the instruction manual, may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures may be required to correct the interference.

USER INFORMATION

Stevens makes no warranty as to the information furnished in these instructions and the reader assumes all risk in the use thereof. No liability is assumed for damages resulting from the use of these instructions. We reserve the right to make changes to products and/or publications without prior notice.

1. Introduction ________________________________________________________

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SECTION 1 INDEX: 1.1 GENERAL DESCRIPTION ........................................................ 2 1.2 BASIC PRINCIPLES OF OPERATION ...................................... 3 1.3 SAFETY INFORMATION ........................................................... 4 FIGURES Figure 1.1 The Stevens SatComm Transmitter ………............................……............. 2

1. Introduction ________________________________________________________

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Figure 1.1 The Stevens SatComm GOES CS2 Transmitter

1.1 GENERAL DESCRIPTION The Stevens SatComm Transmitter is a fully GOES Ver 2.0 compliant 300/1200 baud transmitter designed for remote applications. It performs as a satellite modem, collecting data from a data logger or other similar serial data output device for packetization and transmission over the GOES satellite system. It is capable of random and/or self-timed transmissions, at any combination of 300/1200 baud rates. Key features of the Stevens SatComm Transmitter are:

GPS Disciplined TCXO frequency reference allowing for faster unit stabilization and lower current consumption.

Unconditional frequency stability based on the GPS 1pps. Accurate Time Keeping based on the GPS 1pps. Digital synthesizer for transmission filtering and modulation. USB interface to external laptop. Self diagnostic capability. High output power (10W) capability. Echoing of logger data (internal or external) to the DCP Command Port for dual

telemetry.

1. Introduction ________________________________________________________

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1.2. BASIC PRINCIPLES OF OPERATION The Stevens SatComm (SatComm) and SatComm with Data Logger can be communicated with via a standard serial dB9 port or a USB-type B connection and is setup using either a terminal emulation program (like HyperTerm) or using the included setup application “SatCommSet”. SatCommSet is a windows based GUI (graphical user interface). Using the terminal program (like HyperTerm , Termite, RealTerm, etc.) the user operates in two standard modes, off-Line mode and On-line mode. Off-Line mode is the default mode upon power up and is the starting place for setting up the unit for operation. On-line mode can be entered from Off-Line mode by selecting “Go to On Line Mode” from the Off-Line Menu. All necessary setup information can be entered through the Off-Line Menu structure using the terminal emulation program on a PC. The application SatCommSet can also be used to enter all setup information. Once a unit is programmed, it can be placed “On-Line” and connected to the particular data logger to be used. If continuous self-timed message buffering is enabled, all serial transmissions received from the data logger will be placed in a buffer awaiting transmission at the next self-timed interval. A serial transmission beginning with the sequence ++R (default character sequence), will be placed in the random transmission buffer and will trigger the random transmission mode. The data in the buffer will not include the ++R characters. Data will be buffered for up to 120 seconds (user selectable), or until the receipt of ++E (default character sequence), indicating the end of the random data stream. This end sequence would also not be included in the random message. In random transmission mode, the unit will transmit a message as soon as is allowable, determined by unit warm up and transmission preparation requirements. Once a random transmission has been sent, additional transmission will be sent at the programmed random time interval. The number of repeat transmissions is also programmed. Standard transmissions will take priority, but will not be included as a transmission in figuring the random transmission count. The random transmission maximum length is fixed at 3.0 seconds for 300 baud and 1.5 seconds for 1200 baud. Longer data packets received from the data logger will be truncated. Self-timed transmissions will begin at the exact time programmed as the start time for transmissions. There is no option for “window centering”. Transmission time will be limited by user during the setup process. Longer data streams received from the attached data logger will be truncated. The maximum message window shall be 107 seconds, or a length of 3978 bytes. If continuous self-timed message buffering is not enabled, the SatComm will turn on the CTS line 1-60 seconds (user selectable) before it is time to transmit the message. This is done to wake up the data logger and give it enough time to transmit the data for the next message to the SatComm. The number of seconds can be adjusted. Setting the CTS time to zero will enable continuous standard data buffering, and any data received by the logger when in Online mode, which is not otherwise designated as a random message, will be put into the standard message buffer for transmission as a standard, timed message. All transmissions will require a set unit warm up time to allow for the SatComm to reach frequency stabilization. This is set to approximately 2 minutes, 40 seconds. At the same time

1. Introduction ________________________________________________________

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as the SatComm warm-up begins, the unit will wait for the GPS receiver to give a time and date fix. After an initial GPS lock, if a valid GPS time and date fix is not obtained before the transmission time, the transmission will continue. If a GPS update has not been obtained for 24 hours, self-timed transmissions will be inhibited. RF power output is fixed depending on user entry of the baud rate and antenna type. Default value for 300 baud using a 10dBi antenna is 1.0 watts. It is not adjustable by the user. Note: Either random or self-timed messages, or both, can be enabled. One or the other must be enabled for the unit to enter the On-Line Mode.

1.3 SAFETY INFORMATION Before performing any procedures in this manual, please read all applicable warnings and cautions in the preceding section. Power sources, including batteries, can be a particular hazard to the user.

2. Installation ________________________________________________________

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SECTION 2 (Installation) INDEX: 2.1 GENERAL DESCRIPTION ......................................................... 5 2.2 MECHANICAL INSTALLATION ................................................. 5 2.3 ELECTRICAL INSTALLATION .................................................. 7 FIGURES Figure 2.1 Electrical Connectors .................….......................... 6 Figure 2.2 Typical System Configuration .................................. 8

2.1 GENERAL DESCRIPTION The Stevens SatComm is housed in a sheet metal enclosure, which provides a durable housing as well as appropriate RF shielding. The SatComm should be protected from weather and vandals, when used in remote, outdoor applications, by mounting the equipment in an existing gage house or other suitable structure. For areas of extreme humidity, a NEMA-4 housing is recommended.

2.2 MECHANICAL INSTALLATION 1. Unpack and examine your new SatComm unit carefully. If there is any apparent shipping damage, contact the shipper immediately. Also contact the factory for replacement of the unit.

2. Observe the front and back panels of the unit. All electrical and RF connections are made via these panels. See Figure 2.1 Electrical Connectors for the following discussion.

2. Installation ________________________________________________________

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Front Panel Stevens SatComm

Front Panel Stevens SatComm with Data Logger

Back Panel Stevens SatComm and SatComm with Data Logger

Figure 2.1 Electrical Connectors

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3. The unit may be mounted on a shelf or a wall. Position it so the power, signal and antenna cables can be connected to the power source, logger or other monitoring device, and appropriate antennas.

2.3 ELECTRICAL INSTALLATION 1. There are several connections to the SatComm unit:

Back Panel 1. Power cable: permanent connection to SatComm, attaches with screw

terminals to the battery or power supply between 10.5 and 16 VDC. 2. GOES RF Output connection. 3. Chassis Lug with Wing-Nut: attach chassis ground cable assembly for

common ground connection

Front Panel: SatComm 1. USB connection for PC or laptop connection for unit setup 2. SMA connector for GPS antenna connection 3. DB9-m, External Logger Connection: for data transfer from attached logging

or monitoring device. This port is setup as a DTE. If the external logger’s output port is DB9-f setup as a DCE, then only a straight M-F RS232 cable is required.

4. DB9-f, External Touch Screen connection. 5. DB9-f, DCP Command Receiver: currently used for echoing the data logger

data for dual telemetry purpose

Front Panel: SatComm with Data Logger (two extra external connections) 1. SD Card slot: Used for data retrieval from the internal data logger. 2. Internal Logger I/O: Used to connect the external Sensor I/O box (see image

below).

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SatComm with Data Logger Sensor I/O box

2. Connect a USB serial cable from a PC or other programming device to the SatComm USB port. Use a terminal program on the computer, such as windows HYPERTERMINAL or equivalent, and configure the settings for 38400 BAUD, 8 bits, 1 stop bit, no parity. These are the default USB Virtual Comm Port settings.

3. The power cable is supplied with two bare wires and loose Faston and spade connectors.

Crimp the Faston connectors to the cable if it is to go to a battery with tab-type output connectors. Crimp the spade connectors to the wires when connecting to the Stevens Battery Charger, Solar Panel or power supply. The black wire connects to the negative (-) and the red wire to the positive (+) output of the 12 volt power source. Connections to the SatComm, viewing the front and back panels straight-on, are as shown below:

WARNING: TAKE CARE TO OBSERVE PROPER POLARITY OF POWER CONNECTIONS. IMPROPER POLARITY COULD RESULT IN DAMAGE TO THE SATCOMM OR OTHER DEVICES IN THE SYSTEM.

Figure 2.2 Typical System Configuration

GOES Antenna GPS Antenna

Data Logger Serial Port Link

Battery

+ 12VDC - Power

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Installation using a Terminal Emulation Program (like HyperTerminal or Termite)

There is no power switch to the SatComm. The unit will power up after making the proper power connections as shown above. Upon power up, the user should see all of the LED lights illuminate on the top of the unit (see the following Image) for 15 seconds while the SatComm goes through its BIST (built in self test) routine, after which they all go out except for the PWR and GPS LEDs.

At that time, the following Menu should appear on the computer screen,

Stevens SATCOMM Model No. 93876 Version No. 2.1

Off Line Menu 1 = Display System Status 2 = Setup the System 3 = Go to On Line Mode 4 = Go to On Air Test Mode 5 = Go to Manufacturing Test Mode 6 = Go to Certification Mode 7 = Go to DCPC Mode X = Initiate System Reset

SatComm LEDs

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and the unit will power the internal GPS receiver and attempt a GPS location fix and time synchronization. This is invisible to the user unless the user proceeds by selecting “1 = Display System Status”, followed by “3 = Display GPS Status”. Under this menu, the user can select a number of options that will show the status of the GPS acquisition:

1 = Time and Date 2 = Lat Lon 3 = Satellites Being Tracked 4 = Satellites in View 5 = All 6 = Stream Raw GPSDO Data B = Back

If a GPS antenna is connected with a clear view of the sky, a proper time sync should occur within 90 seconds. However, if the SatComm has never been powered your particular part of the world, then it may take up to 15 minutes to fully download the GPS almanac and get a location fix. After this initial fix, then subsequent fixes should occur quickly. Go back to the Main Menu before proceeding with the next section that describes how the Stevens SatComm is setup for collecting data and sending transmissions.



3. Quick Start ________________________________________________________

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SECTION 3: Quick Start (terminal program) INDEX: 3.1 INTRODUCTION ..................................................................... 12 3.2 QUICK START ........................................................................ 12 3.3 STATION LOG ........................................................................ 17

3. Quick Start ________________________________________________________

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3.1 INTRODUCTION This section is a sequential list of menu commands to give the user a way to quickly get the Steven SatComm setup and operational. This section has very little explanation of the various commands. It serves only to get the user up and running as quickly as possible with the assumption that the user is using the USB connector port (with default USB Comm Port settings) for setup and an external logger using ASCII data. Familiarity with the menu command structure is necessary as one gets deeper into the details of operation and is described in Section 4: Operation.

3.2 QUICK SETUP 3.2.1 Upon power up, SatComm will start at the following menu:

Stevens SATCOMM Model No. 93876 Version No. 2.1 Off Line Menu 1 = Display System Status 2 = Setup the System 3 = Go to On Line Mode 4 = Go to On Air Test Mode 5 = Go to Manufacturing Test Mode 6 = Go to Certification Mode 7 = Go to DCPC Mode X= Initiate System Reset

Select 2 = Setup the System System Setup Options Select 1 = GOES Platform ID Setup GOES Platform ID Select 1 = Enter Your 8 Character GOES ID Enter 8 Characters using 0-9 and/or A-F only: Select F = Forward and Save System Setup Options Select 2 = Self Timed Scheduled Transmission Setup Step 1: Baud Rate Self Timed Transmissions Select 1 = 300 or 2 = 1200 Select F = Forward and Save Step 2: Data Type Self Timed Transmissions Select 1 = ASCII Select F = Forward and Save

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Step 3: Data Redundancy Self-Timed Transmissions Select 1 to set Data Redundancy, Select 2 to clear Data Redundancy. The following warning will be displayed: This will erase existing DCP Field Option selections and the existing number of DCP Data Bytes selected. Enter Y to confirm or N to cancel. Enter “Y” Select F = Forward and Save Step 4: Transmission Time Self-Timed Transmissions Select 1 = Manually Enter Transmission Time in Seconds The following warning will be displayed: This will erase existing DCP Field Option selections and the existing number of DCP Data Bytes selected. Enter Y to confirm or N to cancel. Enter “Y” Enter a Number from 001 to 107 (this is a number in seconds given from NESDIS for your assigned time slot. Enter this here. For Example, if the assigned time slot was 10seconds, enter 010). Select F = Forward and Save Step 5: Include DCP Field Options Select DCP Field Options (Select 1 through 8), after finished… Select F = Forward and Save Step 6: Header Value Self Timed Transmissions Select 1 = Auto Calculate or 2 = Manual Entry 00 to 63 Select F = Forward and Save Step 7: Channel Number Self Timed Transmissions Select 1 = Manually Enter Channel Number Enter a Number from 001 to 266 or from 301 to 566: Select F = Forward and Save Step 8: GMT Offset Time Self Timed Transmissions Select 1 = Manually Enter Hours 00 to 23 Enter a Number from 00 to 23: Select 2 = Manually Enter Minutes 00 to 59 Enter a Number from 00 to 59: Select 3 = Manually Enter Seconds 00 to 59 Enter a Number from 00 to 59: Select F = Forward and Save Step 9: Repeat Interval Self-Timed Transmissions Select 1 = Manually Enter Hours 00 to 23 Enter a Number from 00 to 23: Select 2 = Manually Enter Minutes 00 to 59 Enter a Number from 0 to 59:

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Select 3 = Manually Enter Seconds 00 to 59 Enter a Number from 00 to 59: Select F = Forward and Save Step 10: Cable Loss Select 1 = Standard Stevens 15ft RF Cable, or 2 = Standard Stevens 30ft RF Cable, or 3 = Manually Enter Cable Loss Select F = Forward and Save Step 11: Antenna Type Selection Select 1 = Antenna (RHCP Yagi) Gain 11dBic, or 2 = Antenna (V4TH) Gain 10dBic, or 3= Antenna (V2TH) Gain 5.5dBic Select F = Forward and Save

Random Alarm Transmission Setup (only if Random transmissions are needed, otherwise skip these setup steps)

System Setup Options Select 3 = Random Alarm Transmission Setup Step 1: Baud Rate Random Alarm Transmissions Select 1 = 300 or 2 = 1200 Select F = Forward and Save Step 2: Data Type Random Alarm Transmissions (also applies to Self-Timed Transmission) Select 1 = ASCII Select F = Forward and Save Step 3 Random Alarm Transmission Time Select 1 = Manually Enter Transmission Time in Seconds The following warning will be displayed: This will erase existing DCP Field Option selections and the existing number of DCP Data Bytes selected. Enter Y to confirm or N to cancel. Enter “Y” Enter a Number from 1.0 to 3.0: Enter 3.0 (maximum transmission time allowed for a 300 baud random transmission) Select F = Forward and Save Step 4: Include DCP Field Options Select DCP Field Options (Select 1 through 8), after finished… Select F = Forward and Save Step 5: Header Value Random Alarm Transmissions Select 1 = Auto Calculate or 2 = Manual Entry 00 to 63 Select F = Forward and Save

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Step 6: Channel Number Random Alarm Transmissions Select 1 = Manually Enter Channel Number Enter a Number from 001 to 266 or from 301 to 566: (Transmission Frequency in Hz will be displayed) Select F = Forward and Save Step 7A: Retransmission Repeat Attempts Select 1 = Manually Enter Retransmission Repeat Attempts Enter a Number from 000 to 255: Select F = Forward and Save (if 000 is selected the next step, 7B, will be skipped) Step 7B: Repeat Interval Random Alarm Transmissions Select 1 = Manually Enter Hours 00 to 23 Enter a Number from 00 to 23: Select 2 = Manually Enter Minutes 00 to 59 Enter a Number from 00 to 59: Select 3 = Manually Enter Seconds 00 to 59 Enter a Number from 00 to 59: Select F = Forward and Save Step 8: Alarm Start Sequence Characters Select 1 = Manually Enter Characters Enter a String of Characters, no more than 20: Select F = Forward and Save Step 9: Alarm End Sequence Characters Select 1 = Manually Enter Characters Enter a String of Characters, no more than 20: Select F = Forward and Save Step 10: Sequence Timeout Random Alarm Transmissions Select 1 = Manually Enter Seconds 001 to 120 Select F = Forward and Save

Step 11: Cable Loss Select 1 = Standard Stevens 15ft RF Cable, or 2 = Standard Stevens 30ft RF Cable, or 3 = Manually Enter Cable Loss Select F = Forward and Save Step 12: Antenna Type Selection Select 1 = Antenna (RHCP Yagi) Gain 11dBic or 2 = Antenna (V4TH) Gain 10dBic or 3 = Antenna (V2TH) Gain 5.5dBic Select F = Forward and Save System Setup Options Select 4 = External Logger Interface Setup

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Step 1: Baud Rate External Logger Select menu number which corresponds to the logger’s baud rate Select F = Forward and Save Step 2: Number of Logger Data Bits Per Byte Select menu number which corresponds to the logger’s data bits Select F = Forward and Save Step 3A: ASCII Parity from External Logger Select menu number which corresponds to the logger’s parity setting Select F = Forward and Save (if “Parity Off” is selected, then Step 2B will be skipped) Step 3B: ASCII Parity Odd/Even from External Logger Select menu number which corresponds to the logger’s parity Odd or Even setting Select F = Forward and Save Step 4: Stop Bits from External Logger Select menu number which corresponds to the logger’s number of stop bits. Select F = Forward and Save Step 5: Retransmit Logger Data To DCP Command Port Select menu number which to turn off or on transmitting the logger data to the DCP Command Port Select F = Forward and Save Step 6: Refresh Logger Clock Select menu number to set the way SatComm updates an external logger’s clock, or keep this feature disabled with Selection 1. Select F = Forward and Save Step 7A: Data Flow Control with External Logger Select menu number to setup the external logger’s flow control. Select F = Forward and Save (if “Continuous Listen” is selected, then Step 7B will be skipped) Step 7B: CTS Time High in Seconds Select 1 to manually enter how long CTS will remain high for collecting data from the external logger.. Select F = Forward and Save System Setup Options Select B = Back Off Line Menu (after the GPS LED goes out, indicating a GPS fix…) Select 3 = Go to On Line Mode

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3.2.2 Remember that Date and Time are to be in UTC format (GMT or Zulu time), not local time. Under normal operation, the unit will obtain a GPS update prior to each transmission. If no GPS update is obtained for 24 hours, time scheduled transmissions will be prohibited until a good GPS update is achieved. 3.2.3 Check the system voltage by using the “Display System Status” menu. Select 4, “Display SATCOMM Hardware and Software Status”, followed by 2, “Battery Voltage”. This value should be in the range of 10.5 to 16 volts for battery or power supply operation. For a rechargeable lead-acid type, replace the battery when the indicated voltage drops below 11.0 volts, as there is very little useful energy remaining. 3.2.4 Check the transmitter output VSWR by using the “Display System Status” menu (from the Off Line Menu). Select 4, “Display SATCOMM Hardware and Software Status”, followed by 7, “VSWR Measurement”. This will return a value; VSWR = XXX.XX. A value of 002:00 or less is typical (this represents a VSWR of 2:1). Note: If a value of 005.00 or above is measured, SatComm will inhibit the transmission. 3.2.5 If the SatComm is operated in a humid or condensing environment, place a fresh bag or two of desiccant together with the instrument inside of the NEMA-4 enclosure being used. Replace and recharge the desiccant on a regular basis.

3.3 STATION LOG We recommended that a station log be maintained for each field site, for future reference. Record such useful information as:

Installation date for system battery. Transmit interval, transmit time offset, and assigned NESDIS ID and channel. System voltage, to establish a history for battery usage. VSWR measurement, to monitor the health of the output connection to the RF cable and

antenna. Other pertinent environmental or station operation data.

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SECTION 4: Operation (using terminal emulation program) INDEX: 4.1 INTRODUCTION ...................................................................... 19 4.2 CONNECTIONS ....................................................................... 19 4.3 OFF LINE MENU COMMANDS .............................................. 22 4.3.1 Display System Status.................................................. 22 4.3.2 Setup The System ....................................................... 27 TABLES: Table 4.1 External Logger Connector.....................................….. 19 Table 4.2 Touch Screen Connector ……………...................….... 20 Table 4.3 DCP Command Receiver Connector............……….... 20 Table 4.4 Off Line Menu .................…… …....…....…....….......... 22 Table 4.5 Display System Status Menu ......................…............. 22

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4.1 INTRODUCTION The USB Port Interface permits connecting the SatComm to a computer or other serial communications device that uses USB and has a terminal emulation program. The purpose of this USB port is for setup and diagnostics through the menu commands. These same commands may be entered through the external “Touch Screen” interface connector. However, if both ports are connected, the USB port has the priority. Data to be transmitted is transferred through the “External Logger” DB9 serial port, as previously outlined in Section 3 (unless the Internal Logger version of the product is being used). In the following discussion, Section 4.2 describes the physical connections of the “External Logger” port along with the other two DB9 serial ports “DCP Command Receiver” and “Touch Screen”, as well as GPS Antenna. Section 4.3 provides a detailed description of the serial commands for setup and diagnostics.

4.2 CONNECTIONS The connections and signal definitions for the DB9 front panel Serial Port connectors are described in Tables 4.1, 4.2 and 4.3 below.

CONNECTOR PIN NUMBER

SIGNAL NAME

SIGNAL DESCRIPTION

VOLTAGE LEVELS

1 DCD Data Carrier Detect (Output)

Connected to DSR and DTR

2 RD Transmitted Data (Output)

5 VDC nominal

3 TD Received Data (Input)

Active: 2.5 VDC inactive: 1.4 VDC

4 DTR Data Terminal Ready

Connected to DSR and DCD

5 GND Common Common 6 DSR Data Set Ready Connected to DTR and

DCD 7 RTS Request to Send Active: 2.5 VDC

inactive: 1.4 VDC 8 CTS Clear to Send

(Output) 5 VDC nominal

9 RI Ring Indicator N.C.

Table 4.1 External Logger Connector

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SIGNAL NAME

SIGNAL DESCRIPTION

VOLTAGE LEVELS


No Connection


5 VDC nominal




Connected to DSR

5 GND Common Common 6 DSR Data Set Ready Connected to DTR 7 RTS Request to Send Active: 2.5 VDC



9 RI Ring Indicator BATT: ~+12VDC

Table 4.2 Touch Screen Connector


SIGNAL NAME

SIGNAL DESCRIPTION

VOLTAGE LEVELS


No Connection


5 VDC nominal




Connected to DSR

5 GND Common Common 6 DSR Data Set Ready Connected to DTR 7 RTS Request to Send Active: 2.5 VDC



9 RI Ring Indicator No Connection

Table 4.3 DCP Command Receiver Connector

Connect the USB cable from a PC or Laptop’s USB-A port to the front panel USB type B connector. The SatComm USB driver will automatically install and assign a virtual COMM port on your computer. When using the Hyperterm or other terminal emulation program, you must select this virtual COMM port when setting up communication with the SatComm. Connection to the other DB9 connectors for “External Logger, “Touch Screen” or “DCP Command Receiver” is made via a standard 9-pin serial cable. These accessories should be included in the purchase of your Stevens SatComm unit as requested for your DCP system.

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Note: Connection to the External Logger via a straight RS232 cable or a “null-modem” RS232 cable will depend on the configuration of the external data logger used with the SatComm. For use with the Stevens DL3000 data logger, a straight male-female RS232 can be used. Warning:

PIN 9 OF THE “TOUCH SCREEN” PORT IS DIRECTLY CONNECTED TO THE SYSTEM

POWER SOURCE (E.G. +12VDC BATTERY). THE STEVENS EXTERNAL TOUCH

SCREEN COMPUTER CONNECTION USES THIS PIN FOR POWERING THE TOUCH

SCREEN DEVICE. SPECIAL CARE MUST BE TAKEN TO ENSURE THAT THIS PIN IS

NOT CONNECTED TO AN EXTERNAL DEVICE THAT DOES NOT NEED THIS POWER

SOURCE. STEVENS IS NOT LIABLE FOR DAMAGE CAUSED BY THE MISUSE OF THIS

POWER PIN.

Connect the supplied GPS antenna via the SMA-f connector on the front panel and position the antenna with the best possible view of the sky. If there are obstacles such as buildings or foliage that blocks view of the open sky, it may hamper the SatComm’s ability to get a location/time fix, which will prevent transmission from occurring. Contact Stevens technical support if this is the case so that an alternative GPS antenna solution can be suggested.

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4.3 OFF LINE MENU COMMANDS

The first menu that appears when powering the SatComm is the Off Line Menu:


Table 4.4 Off Line Menu

Menu selections 1 through 4 are only available to the user. Menu selections 5 &6 are password protected only accessed by a trained Stevens service technician. Menu selection 7 is reserved for future use.

4.3.1 DISPLAY SYSTEM STATUS This menu provides access to the status of various parts of the system.

Display System Status 1 = Display GOES Platform ID 2 = Display Transmission, Logger and USB Status 3 = Display GPS Status 4 = Display SATCOMM Hardware and Software Status B = Back

Table 4.5 Display System Status Menu

[At any time the user can select “B”, which will take the user back to the previous menu. This menu selection appears in the majority of the menus.]

1. “Display GOES Platform ID” allows the user to view what is currently programmed into

the SatComm for a GOES ID: Display System Status 1 = Display GOES Platform ID 2 = Display Transmission, Logger and USB Status 3 = Display GPS Status 4 = Display SATCOMM Hardware and Software Status

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B = Back 1 GOES Platform ID = 9640201

2. “Display Transmission, Logger and USB Status” selection opens up another menu:

Display Transmission, Logger and USB Status 1 = Display Self Timed Transmission Setup Status 2 = Display Random Transmission Setup Status 3 = Display External Logger Setup Status 4 = Display USB Virtual Comm Port Setup Status B = Back

Here is an example for each selection:

1 EXISTING CONFIGURATION Self Timed Transmissions ENABLED 1200 Baud ASCII Data Type Fault Codes in DCP Field Options Battery Voltage in DCP Field Options Last GPS Update Time in DCP Field Options Lat Lon in DCP Field Options Message Count in DCP Field Options Temperature in DCP Field Options Self Timed Header Value = 62 DCP Data Bytes Available For Logger = 1447 DCP Data Bytes Used For Options = 0077 Total DCP Field Bytes = 1524 Actual Transmission Time In Seconds = 010.51 Self Timed Transmit Channel = 195 Self Timed Transmission GMT Offset Time = 00:00:00:00 Self Timed Transmission Repeat Interval = 00:05:00:00 Cable Loss = 0.85 Antenna (V4TH) Gain 10dBic 2 EXISTING CONFIGURATION Random Alarm Transmissions ENABLED 300 Baud ASCII Data Type No DCP Field Options Selected Random Alarm Header Value = 00 DCP Data Bytes Available For Logger = 0078 DCP Data Bytes Used For Options = 0000 Total DCP Field Bytes = 0078 Actual Transmission Time In Seconds = 002.99

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Random Alarm Transmit Channel = 196 Random Alarm Retransmission Attempts = 001 Random Alarm Transmission Repeat Interval = 00:15:00:00 Alarm Start Sequence Characters Are: ++R Alarm End Sequence Characters Are: ++E Random Alarm Sequence Timeout Interval = 120 Cable Loss = 0.85 Antenna (V4TH) Gain 10dBic 3 EXISTING CONFIGURATION External Logger Interface ENABLED 9600 Baud 8 Bits of Logger Data Per Byte(Typical) Logger Provides ASCII Data Type for Transmission ASCII Parity is On ASCII Parity is Odd One Stop Bit Retransmit Logger Data To DCP Command Port = OFF Refresh Logger Clock Type 1 (0xA6) = OFF Refresh Logger Clock Type 2 (SATCOMM updates after reporting) = OFF Continuous Listen Flow Control CTS Time High in Seconds = 00 4 EXISTING CONFIGURATION USB Virtual Comm Port ENABLED 38400 Baud ASCII Parity is Off One Stop Bit This section only shows the status. In order to make a change the user will need to go back to the opening “OFF LINE MENU” and select 2, “Setup the System”.

3. “Display GPS Status” opens up another menu:

Display GPS Status 1 = Time and Date 2 = Lat Lon 3 = Satellites Being Tracked 4 = Satellites in View 5 = All 6 = Stream Raw GPSDO Data B = Back Here is an example for each selection:

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1 UTC time and date = 002606.003 260412 2 Latitude|Longitude = N45 34.10188 , W122 32.14567 3 Satellites Being Tracked = 08 4 Satellites in View = 10 5 UTC time and date = 224002.004 260412 Latitude|Longitude = N45 34.10091 , W122 32.15018 Satellites Being Tracked = 09 Satellites in View = 11 6GPSDO Raw Data Streaming 1 = Begin Streaming GPSDO Data B = Back Once streaming begins, any key will pause. 1 $GPRMC,191440.000,A,4534.097734,N,12232.150409,W,0.017,203.88,170811,,,A*4D $GPGGA,191440.000,4534.097734,N,12232.150409,W,1,9,1.03,13.651,M,-19.222,M,,*5A $GPGSA,A,3,26,08,07,17,15,28,11,19,24,,,,1.84,1.03,1.52*06 $GPGSV,3,1,09,26,55,275,35,08,58,101,31,07,32,115,25,17,32,186,20*79 $GPGSV,3,2,09,15,26,311,25,28,81,319,31,11,23,080,26,19,10,038,21*73 $GPGSV,3,3,09,24,12,093,16*48 $POLYT,191440.000,170811,328480.0006167,1649,328495.0006167,-616718,-1229.639,25 ,2080048,00020,00020,*6D $POLYP,191440.000,4534.097734,N,12232.150409,W,-5.571,G3,002.2,005.8,0.032,203.8 8,-0.005,,1.03,1.52,1.84,2.09,1.00,9,,0*17 $POLYS,09,26,U,275,55,35,055,08,U,101,58,31,255,07,U,115,32,25,,17,U,186,32,20

4. “Display SATCOMM Hardware and Software Status” is a menu that allows the user to re-

run BIST and troubleshoot any problems that may occur, however unlikely: Display SATCOMM Hardware and Software Status 1 = Software Version 2 = Battery Voltage 3 = Internal Temperature

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4 = Hardware Status 5 = Current Software State 6 = Dump System Status Table 7 = VSWR Measurement B = Back Here is an example for each selection: 1 IOP Software Version = 1.00.00 Release Date 10DEC10 TEP Software Version = 1.00.00 Release Date 10DEC10 2 Battery Voltage = 11.72 3 Internal Temperature = +031C 4 STATUS BASED UPON LAST REPORTED DATA IOP Master Fail Flag = Clear|Pass Battery Voltage Fail Flag = Clear|Pass 5.5V Switcher Fail Flag = Clear|Pass 5V Secondary Fail Flag = Clear|Pass 3.3V GPSDIG Fail Flag = Clear|Pass 3.3V GPSPLL Fail Flag = Clear|Pass 3.3V Synthesizer Fail Flag = Clear|Pass 3.3V Synthesizer Analog Fail Flag = Clear|Pass VCAL Fail Flag = Clear|Pass PA Gate Fail Flag = Clear|Pass VFWD Fail Flag = Clear|Pass VREV Fail Flag = Clear|Pass IOP EEPROM Blank Bit = Clear|Not Blank IOP EEPROM Fail Flag = Clear|Pass IOP RTCC Fail Flag = Clear|Pass IOP Fail Safe Circut Fail Flag = Clear|Pass IOP Interprocessor Communication Fail Flag = Clear|Pass IOP Checksum Mismatch Fail Flag = Clear|Pass Temperature Sensor Fail Flag = Clear|Pass TEP Master Fail Flag = Clear|Pass TEP EEPROM Blank Bit = Clear|Not Blank TEP EEPROM Fail Flag = Clear|Pass TEP RTCC Fail Flag = Clear|Pass TEP Fail Safe Circut Fail Flag = Clear|Pass TEP Interprocessor Communication Fail Flag = Clear|Pass TEP Checksum Mismatch Fail Flag = Clear|Pass Power Control DAC Fail Flag = Clear|Pass GPS Module Fail Flag = Clear|Pass DDS Modulator Fail Flag = Clear|Pass RF Synthesizer Fail Flag = Clear|Pass

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5 Current Software State = Off Line 6 = “Dump System Status Table” dumps to the screen a binary representation of the how the SatComm is currently setup. It is not useful information to the user and can be ignored. However, in the event that remote troubleshooting by a Stevens technician is required, this data may be requested. 7 VSWR = 001.38

4.3.2 SETUP THE SYSTEM

These commands provide a means for the user to completely setup the SatComm for deployment. The order of setup is designed so that the user cannot make a mistake and forget a setup parameter, although there can always be a mistake in data entry.

System Setup Options 1 = GOES Platform ID Setup 2 = Self Timed Scheduled Transmission Setup 3 = Random Alarm Transmission Setup 4 = External Logger Interface Setup 5 = USB Virtual Comm Port Setup 6 = Password Setup 7 = External Touch Screen Setup 8 = Restore Factory Defaults B = Back

Table 4.6 System Setup Option Menu

1. “GOES Platform ID Setup” allows the user to enter their NOAA/NESDIS assigned GOES ID:

GOES Platform ID 1 = Enter Your 8 Character GOES ID S = Show Current Configuration and Selections F = Forward and Save B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Clear GOES Platform ID The following is an example for each selection.

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1 Enter 8 Characters using 0-9 and/or A-F only: 12345678 GOES Platform ID 1 = Enter Your 8 Character GOES ID S = Show Current Configuration and Selections F = Forward and Save B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Clear GOES Platform ID S Existing GOES Platform ID = 96402010 New Entry = 12345678 Note: Letter entries are not case sensitive F Saving New Entry B Backs out to previous menu without saving K Keeps Existing Selection E Exits out to previous menu while undoing all changes C Clears all entries and goes back to System Setup Options menu 1 Note: If C is chosen, the GOES ID will need to be reentered before proceeding to “Self-Timed Scheduled Transmission Setup”.

2. “Self Timed Scheduled Transmission Setup” takes the user through all the necessary steps to setup the SatComm for self-timed scheduled transmissions.

Step 1 Baud Rate Self Timed Transmission 1 = 300 2 = 1200 S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward

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E = Exit and Undo Changes C = Cancel and Disable Self Timed Transmissions Select 1 or 2, then F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F Step 2 Data Type Self Timed Transmission (also applies to Random Transmission) 1 = ASCII 2 = Pseudo Binary(Pseudo-Binary Compliant Logger Required) S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Self Timed Transmissions Select 1 or 2, then F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F Step 3 Data Redundancy Self-Timed Transmissions 1 = Set Data Redundancy 2 = Clear Data Redundancy S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Self Timed Transmissions Select 1 to set Data Redundancy. NOTE: If Data Redundancy is selected then you MUST limit the amount of data reported from the logger between transmission intervals to ½ the amount of data needed to fill the allotted time slot. The SatComm will send the current data set along with the previous data set. If the amount of data sent to the SatComm from the logger is more than ½ the amount of data needed to fill the allotted time slot, then the data sets transmitted will be truncated. Select 2 to clear Data Redundancy. The following warning will be displayed: This will erase existing DCP Field Option selections and the existing number of DCP Data Bytes selected. Enter Y to confirm or N to cancel. Enter “Y” Select F = Forward and Save

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Step 4 Transmission Time Self-Timed Transmissions 1 = Manually Enter Transmission Time in Seconds S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Self Timed Transmissions Select 1 to manually enter transmission time. This selection returns the following warning. 1 This will erase existing DCP Field Option selections and the existing number of DCP Data Bytes selected. Enter Y to confirm or N to cancel. Enter Y to proceed Y Enter a Number from 001 to 107: 010 Enter NOAA/NESDIS assigned transmission window (I.E. 010 for 10 seconds) DCP Field Data Bytes = 0340

Actual Transmission Time In Seconds = 009.97 SatComm displays the maximum number of data bytes that can be transmitted for the message with the given time slot. Enter F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F

Step 5 Include DCP Field Options 0 = No Options Included 1 = Fault Codes(9 Bytes) 2 = Battery Voltage(8 Bytes) 3 = Last GPS Update Time(9 Bytes) 4 = Lat Long(33 Bytes) 5 = Message Count(9 Bytes) 6 = Last Logger Update Time(9 Bytes) 7 = VGTM String(5 Bytes) 8 = Temperature-Internal(9 Bytes) S = Show Current Configuration and Selections

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F = Forward and Save New Selections B = Back and Do Not Save(Clears Option Selections) K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Self Timed Transmissions Select 0, or any combination of 1 through 8. Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. Note: The various selections for the DCP Field Options have a specific amount of bytes in the DCP Field that they use up. When a selection is made the SatComm will report how many bytes were selected and calculate the total remaining bytes. 1 Actual Transmission Time In Seconds = 003.55 Total Number Of DCP Field Bytes Transmitted = 0100 Total Number Of Logger Bytes Transmitted = 0082 Total Number Of Option Bytes Transmitted = 0017 Self Timed Data Redundancy CLEARED Total Number Of Bytes Available Per Logger Data Set = 0082 F

Step 6 Header Value Self Timed Transmission 1 = Auto Calculate 2 = Manual Entry 00 to 63 S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Self Timed Transmissions Select 1 or 2, then F to save and proceed to the next step. Selection 2 is available if manual entry is desired: 2 Enter a Number from 00 to 63: 12 Selections S, B, K, E and C are also available if needed. F Step 7 Channel Number Self Timed Transmission 1 = Manually Enter Channel Number S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save

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K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Self Timed Transmissions Select 1 to enter the assigned transmission channel: 1 Enter a Number from 001 to 266 or from 301 to 566: 196 Transmission Frequency in MHz = 401.993500 Selections S, B, K, E and C are also available if needed. F Step 8 GMT Offset Time Self Timed Transmission 1 = Manually Enter Hours 00 to 23 2 = Manual Entry Minutes 00 to 59 3 = Manual Entry Seconds 00 to 59 S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Self Timed Transmissions Use selections 1, 2 and 3 to enter the exact GMT time-slot that has been assigned for this GOES transmitter. The following example shows a setup for UTC 12:30:00: 1 Enter a Number from 00 to 23: 12 2 Enter a Number from 00 to 59: 30 3 Enter a Number from 00 to 59: 00 Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F Step 9 Repeat Interval Self Timed Transmission 1 = Manually Enter Hours 00 to 23 2 = Manual Entry Minutes 00 to 59 3 = Manual Entry Seconds 00 to 59

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S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Self Timed Transmissions Use selections 1, 2 and 3 to enter the exact GMT time-slot repeat interval (or offset) that has been assigned for this GOES transmitter. The following example shows a setup for interval of 1 hour; 01:00:00: 1 Enter a Number from 00 to 23: 01 2 Enter a Number from 00 to 59: 00 3 Enter a Number from 00 to 59: 00 Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F Step 10 Cable Loss 1 = Standard Stevens 15ft RF Cable (0.85dB max) 2 = Standard Stevens 30ft RF Cable (1.50dB max) 3 = Manually Enter Cable Loss S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Random Alarm Transmissions Select either 1, 2 if the cable used is one of the Stevens standard RF cables. Select 3 for any other type of RF cable is used and the cable loss for this cable type is known. The RF output power of the transmitter will be adjusted based on this selection. Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F

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Step 11 Antenna Type Selection 1 = Antenna (RHCP Yagi) Gain 11dBic 2 = Antenna (V4TH) Gain 10dBic 3 = Antenna (V2TH) Gain 5.5dBicS = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Self Timed Transmissions Select either 1, 2 or 3 for the type of antenna used. The Stevens SatComm is qualified to be used with any of these antenna choices. The RF output power of the transmitter will be adjusted based on this selection. Select F to save and proceed back to the System Setup Options main menu: F System Setup Options 1 = GOES Platform ID Setup 2 = Self Timed Scheduled Transmission Setup 3 = Random Alarm Transmission Setup 4 = External Logger Interface Setup 5 = USB Virtual Comm Port Setup 6 = Password Setup 7 = Transmit Power Control Setup 8 = External Touch Screen Setup 9 = Restore Factory Defaults B = Back

3. “Random Alarm Transmission Setup” takes the user through all the necessary steps

to setup the SatComm for random alarm transmissions.

Step 1 Baud Rate Random Alarm Transmission 1 = 300 2 = 1200 S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Self Timed Transmissions Select 1 or 2, then F to save and proceed to the next step. Selections s, B, K, E and C are also available if needed.

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Step 2 Data Type Random Alarm Transmission (also applies to Self-Timed Transmission) 1 = ASCII 2 = Pseudo Binary(Pseudo-Binary Compliant Logger Required) S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Random Alarm Transmissions Select 1 or 2, then F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F

Step 3 Random Alarm Transmission Time 1 = Manually Enter Transmission Time in Seconds S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Random Alarm Transmissions Select 1 to manually enter transmission time. This selection returns the following warning. 1 This will erase existing DCP Field Option selections and the existing number of DCP Data Bytes selected. Enter Y to confirm or N to cancel. Enter Y to proceed Enter a Number from 1.0 to 3.0: 3.0 Enter the expected number of seconds to be used for Random Transmissions (3.0 seconds being the maximum). SatComm will then display the number of data bytes allowed for the transmission along with the actual time. This information is used to setup the alarm logger bytes. DCP Field Data Bytes = 0078

Actual Transmission Time In Seconds = 002.99 Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F

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Step 4 Include DCP Field Options 0 = No Options Included 1 = Fault Codes(9 Bytes) 2 = Battery Voltage(8 Bytes) 3 = Last GPS Update Time(9 Bytes) 4 = Lat Long(33 Bytes) 5 = Message Count(9 Bytes) 6 = Last Logger Update Time(9 Bytes) 7 = VGTM String(5 Bytes) 8 = Temperature-Internal(9 Bytes)S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Random Alarm Transmissions Select 0, or any combination of 1 through 8. Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. Note: The various selections for the DCP Field Options have a specific amount of bytes in the DCP Field that they use up. When a selection is made the SatComm will report how many bytes were selected and calculate the total remaining bytes. 1 0009 DCP Field Option bytes selected. Leaving 0069 bytes for logger data of 0078 byte data buffer. F Step 5 Header Value Random Alarm Transmission 1 = Auto Calculate 2 = Manual Entry 00 to 63 S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Random Alarm Transmissions Select 1 or 2, then F to save and proceed to the next step. Selection 2 is available if manual entry is desired: 2 Enter a Number from 00 to 63: 00 Selections S, B, K, E and C are also available if needed. F

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F Step 6 Channel Number Random Alarm Transmission 1 = Manually Enter Channel Number S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Random Alarm Transmissions Select 1 to enter the assigned random transmission channel: 1 Enter a Number from 001 to 266 or from 301 to 566: 121 Transmission Frequency in MHz = 401.881000 Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F Step 7A Retransmission Repeat Attempts 1 = Manually Enter Retransmission Repeat Attempts S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Self Timed Transmissions Select 1 to enter the number of transmission repeat attempts: 1 Enter a Number from 000 to 255: 005 Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F Step 7B Random Repeat Interval Random Alarm Transmission 1 = Manually Enter Hours 0 to 23 2 = Manual Entry Minutes 0 to 59 3 = Manual Entry Seconds 0 to 59 S = Show Current Configuration and Selections F = Forward and Save New Selections

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B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Self Timed Transmissions Use selections 1, 2 and 3 to enter the exact GMT random alarm time-slot that has been assigned for this GOES transmitter. The following example shows a setup for UTC 12:30:00: 1 Enter a Number from 00 to 23: 12 2 Enter a Number from 00 to 59: 30 3 Enter a Number from 00 to 59: 00 Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F Step 8 Alarm Start Sequence Characters 1 = Manually Enter Characters S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Self Timed Transmissions Select 1 to enter the alarm start sequence characters. The SatComm will screen for this string of characters to know when an alarm condition has happened and to start transmitting data over the alarm channel at the specified interval. An example is shown below: 1 Enter a String of Characters, no more than 20 ++R Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F Step 9 Alarm End Sequence Characters 1 = Manually Enter Characters S = Show Current Configuration and Selections F = Forward and Save New Selections

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B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Self Timed Transmissions Select 1 to enter the alarm end sequence characters. The SatComm will screen for this string of characters to know when an alarm condition is over and to resume transmitting data over the self-timed channel. An example is shown below: 1 Enter a String of Characters, no more than 20 ++E Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F Step 10 Sequence Timeout Random Alarm Transmission 1 = Manually Enter Seconds 001 to 120 S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Self Timed Transmissions Select 1 and enter the exact time the SatComm waits for data after receiving the start sequence. If the End Sequence Characters are not received in this time, the Satcomm resumes scheduled Standard transmissions. Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F Step 11 Cable Loss 1 = Standard Stevens 15ft RF Cable (0.85dB max) 2 = Standard Stevens 30ft RF Cable (1.50dB max) 3 = Manually Enter Cable Loss S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Random Alarm Transmissions

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Select either 1, 2 if the cable used is one of the Stevens standard RF cables. Select 3 for any other type of RF cable is used and the cable loss for this cable type is known. The RF output power of the transmitter will be adjusted based on this selection. Note: Changing the cable loss here will also change it in the Standard Transmission Setup. Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F Step 12 Antenna Type Selection 1 = Antenna (RHCP Yagi) Gain 11dBic 2 = Antenna (V4TH) Gain 10dBic 3 = Antenna (V2TH) Gain 5.5dBicS = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable Self Timed Transmissions Select either 1, 2 or 3 for the type of antenna used. The Stevens SatComm is qualified to be used with any of these antennas. The RF output power of the transmitter will be adjusted based on this selection. Select F to save and proceed back to the System Setup Options main menu: F System Setup Options 1 = GOES Platform ID Setup 2 = Self Timed Scheduled Transmission Setup 3 = Random Alarm Transmission Setup 4 = External Logger Interface Setup 5 = USB Virtual Comm Port Setup 6 = Password Setup 7 = Transmit Power Control Setup 8 = External Touch Screen Setup 9 = Restore Factory Defaults B = Back

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4. “External Logger Interface Setup” allows the user to set up the external logger interface on the SatComm to match the Comm port settings of the external logger:

Step 1 Baud Rate External Logger 1 = 2400 2 = 4800 3 = 9600 4 = 19200 5 = 38400 6 = 115200 S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable External Logger Interface Select 1 through 6 for the baud rate that matches the baud rate which the connected logger is set to. Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F

Step 2 Number of Logger Data Bits Per Byte 1 = 8 bits(typical) 2 = 7 bits(legacy) S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable External Logger Interface Select 1 or 2 for number of external logger data bit that matches the way in which the connected logger is set to. Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. Step 3A ASCII Parity from External Logger 1 = Parity On 2 = Parity Off S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes

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C = Cancel and Disable External Logger Interface Select 1 or 2 for ASCII parity that matches the parity which the connected logger is set to. Note: If 2 is selected then step 3B will be skipped. Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F

Step 3B ASCII Parity Odd/Even from External Logger 1 = Parity Odd 2 = Parity Even S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable External Logger Interface Select 1 or 2 for ASCII parity that matches the parity which the connected logger is set to. Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F Step 4 Stop Bits from External Logger 1 = 1 Stop Bit 2 = 2 Stop Bits S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable External Logger Interface Select 1 or 2 for number of Stop Bits that matches the number of Stop Bits which the connected logger is set to. Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F

Step 5 Retransmit Logger Data To DCP Command Port 1 = On 2 = Off

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S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable External Logger Interface Select 1 to turn on echoing logger data to DCP Command Port. Select 2 to turn off this feature. Note: If the SatComm external logger port is set to Continuous Listen, then the echoing to DCP Command port happens as soon as it is received. If the external logger port is set for CTS mode, then the echoing of the logged data will take place as soon as the transmission is concluded. Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F

Step 6 Refresh Logger Clock 1 = Off(default) 2 = On-Type 1(Logger requests update by sending 0xA6) 3 = On-Type 2(SATCOMM updates logger after logger reports) S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable External Logger Interface Select 1 if no clock synchronization is needed. Make selection 2 or 3 for clock synchronization based on a specific type of logger connected. Selection 2 is for any logger that can be programmed to send a hex 0xA6 to the SatComm and the SatComm returns time and date in BCD (binary coded decimal) format. Selection 3 is for synchronization with a Design Analysis data logger model H-522+ or H-350XL. Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F Step 7A Data Flow Control with External Logger 1 = Continuous Listen (None) 2 = CTS (SATCOMM requests data, ignored when Random Transmissions Enabled)

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S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable External Logger Interface Note: This Step will only be available if Random Transmissions are disabled since Random Transmission require the SatComm to be set to Continuous Listen mode, which is always awake awaiting data from an external logger. Select 1 for a connection to an external logger that requires the SatComm to always listen to incoming asynchronous data. Select 2 for CTS mode. CTS mode assumes the external logger is asleep and needs to awakened by an external signal from SatComm. Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F Step 7B CTS Time High in Seconds 1 = Manual Entry Seconds 01 to 60 S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes C = Cancel and Disable External Logger Interface Select 1 to manually enter how much time to give once the CTS line is asserted to allow the external data logger to wake up and send its stored data that it wants to transmit. 15 seconds is the default value. Feature: The SatComm’s CTS mode can be used by an external logger to synchronize a logger internal RTC (real time clock) due to the fact that the CTS assertion is always at an exact interval between on another. Selections S, B, K, E and C are also available if needed. Select F to save and proceed back to the System Setup Options main menu. The external logger interface is now enabled for use: F Enabling External Logger Interface and Saving Configuration

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System Setup Options 1 = GOES Platform ID Setup 2 = Self Timed Scheduled Transmission Setup 3 = Random Alarm Transmission Setup 4 = External Logger Interface Setup 5 = USB Virtual Comm Port Setup 6 = Password Setup 7 = Transmit Power Control Setup 8 = External Touch Screen Setup 9 = Restore Factory Defaults B = Back

5. “USB Virtual Comm Port Setup” allows the user to set up the USB interface on the SatComm to match the Comm port settings of the USB port being used on the setup PC or laptop:

Step 1 Baud Rate USB Virtual Comm Port 1 = 2400 2 = 4800 3 = 9600 4 = 19200 5 = 38400 6 = 115200 S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes Select 1 through 6 for the baud rate that matches the baud rate which the setup PC or laptop is set to. Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F Step 2A ASCII Parity from USB Virtual Comm Port 1 = Parity On 2 = Parity Off S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes Select 1 or 2 for ASCII parity that matches the parity which the setup PC or laptop is set to.

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Note: If 2 is selected, the setup will skip step 2B and move to step 2C. Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed.

F Step 2B ASCII Parity Odd/Even from USB Virtual Comm Port 1 = Parity Odd 2 = Parity Even S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes Select 1 or 2 for ASCII parity that matches the parity which the setup PC or laptop is set to. Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F Step 2C Stop Bits from USB Virtual Comm Port 1 = 1 Stop Bit 2 = 2 Stop Bits S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes Select 1 or 2 for number of Stop Bits that matches the number of Stop Bits which the setup PC or laptop is set to. Selections S, B, K, E and C are also available if needed. Select F to save and proceed back to the System Setup Options main menu. The USB interface is now saved and enabled for use: F Saving New USB Virtual Comm Port Interface Configuration System Setup Options 1 = GOES Platform ID Setup 2 = Self Timed Scheduled Transmission Setup 3 = Random Alarm Transmission Setup 4 = External Logger Interface Setup

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5 = USB Virtual Comm Port Setup 6 = Password Setup 7 = Transmit Power Control Setup 8 = External Touch Screen Setup 9 = Restore Factory Defaults B = Back

6. “Password Setup” is used to password protect the setup of the SatComm:

Password 1 = Enter 8 Characters S = Show Current Selections F = Forward and Save B = Back and Do Not Save K = Keep Existing Password and Go Forward E = Exit and Undo Changes C = Cancel and Disable Password Protection Select 1 to enter a password: 1 Enter 8 Characters: 12345678 Selections S, B, K, E and C are also available if needed. Select F to save and proceed back to the System Setup Options main menu. Note: Once a password is configured for SatComm, the user must enter it from the Off Line Menu whenever 2 = Setup the System is chosen. System Setup Options 1 = GOES Platform ID Setup 2 = Self Timed Scheduled Transmission Setup 3 = Random Alarm Transmission Setup 4 = External Logger Interface Setup 5 = USB Virtual Comm Port Setup 6 = Password Setup 7 = Transmit Power Control Setup 8 = External Touch Screen Setup 9 = Restore Factory Defaults B = Back

7. “External Touch Screen Setup” allows the user to set up the Touch Screen interface

on the SatComm to match the Comm port settings of the External Touch Screen being used:

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Step 1 Baud Rate External Touch Screen 1 = 2400 2 = 4800 3 = 9600 4 = 19200 5 = 38400 6 = 115200 S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes Select 1 through 6 for the baud rate that matches the baud rate which the External Touch Screen is set to. Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F Step 2A ASCII Parity from External Touch Screen 1 = Parity On 2 = Parity Off S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes Select 1 or 2 for ASCII parity that matches the parity which the External Touch Screen is set to. Note: If 2 is selected, the setup will skip step 2B and move to step 2C. Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F Step 2B ASCII Parity Odd/Even from External Touch Screen 1 = Parity Odd 2 = Parity Even S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes

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Select 1 or 2 for ASCII parity that matches the parity which the External Touch Screen is set to.

Select F to save and proceed to the next step. Selections S, B, K, E and C are also available if needed. F Step 2C Stop Bits from External Touch Screen 1 = 1 Stop Bit 2 = 2 Stop Bits S = Show Current Configuration and Selections F = Forward and Save New Selections B = Back and Do Not Save K = Keep Current Configuration and Go Forward E = Exit and Undo Changes Select 1 or 2 for number of Stop Bits that matches the number of Stop Bits which the External Touch Screen is set to. Selections S, B, K, E and C are also available if needed. Select F to save and proceed back to the System Setup Options main menu. The USB interface is now saved and enabled for use: F Saving New External Touch Screen Interface Configuration System Setup Options 1 = GOES Platform ID Setup 2 = Self Timed Scheduled Transmission Setup 3 = Random Alarm Transmission Setup 4 = External Logger Interface Setup 5 = USB Virtual Comm Port Setup 6 = Password Setup 7 = Transmit Power Control Setup 8 = External Touch Screen Setup 9 = Restore Factory Defaults B = Back

8. “Restore Factory Defaults”. 8 “Enter Y to confirm and N to cancel”

Selecting “Restore Factory Defaults” restores the SatComm to the following factory settings:

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GOES Platform ID: 9640201 Self-Timed Transmissions: Self Timed Transmissions ENABLED 300 Baud ASCII Data Type No DCP Field Options Selected Self Timed Header Value = 00 Actual Transmission Time In Seconds = 003.58 Total Number Of DCP Field Bytes Transmitted = 0100 Total Number Of Logger Bytes Transmitted = 0100 Total Number Of Option Bytes Transmitted = 0000 Self Timed Data Redundancy CLEARED Total Number Of Bytes Available Per Logger Data Set = 0100 Self Timed Transmit Channel = 196 Self Timed Transmission GMT Offset Time = 00:00:00:00 Self Timed Transmission Repeat Interval = 00:05:00:00 Cable Loss = 1.50 Antenna (V4TH) Gain 10dBic Random Alarm Transmissions: Random Alarm Transmissions DISABLED 300 Baud ASCII Data Type No DCP Field Options Selected Random Alarm Header Value = 00 DCP Data Bytes Available For Logger = 0000 DCP Data Bytes Used For Options = 0000 Total DCP Field Bytes = 0000 Actual Transmission Time In Seconds = 000.91 Random Alarm Transmit Channel = 196 Random Alarm Retransmission Attempts = 000 Random Alarm Transmission Repeat Interval = 00:00:00:00 Alarm Start Sequence Characters Are: ++R Alarm End Sequence Characters Are: ++E Random Alarm Sequence Timeout Interval = 060 Cable Loss = 1.50 Antenna (V4TH) Gain 10dBic External Logger Interface: External Logger Interface ENABLED 38400 Baud 8 Bits of Logger Data Per Byte(Typical) Logger Provides ASCII Data Type for Transmission

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ASCII Parity is Off One Stop Bit Retransmit Logger Data To DCP Command Port = OFF Refresh Logger Clock Type 1 (0xA6) = OFF Refresh Logger Clock Type 2 (SATCOMM updates after reporting) = OFF Continuous Listen Flow Control CTS Time High in Seconds = 00 USB Virtual Comm Port: USB Virtual Comm Port ENABLED 38400 Baud ASCII Parity is Off One Stop Bit

4.3.3 GO TO ON LINE MODE Once the SatComm has been installed at the DCP and setup properly, select “3 = Go to On Line Mode” from the Off Line Menu


When “Go to Online Mode” is selected, and there has been a GPS fix, the SatComm will acquire time and date, and auto-calibrate the RTCC (real time clock chip).

SATCOMM acquiring GPS time and date. Enter 'B' to go back to Off Line. SATCOMM Autocalibrating....Please Wait SATCOMM On Line Status: Confirmed

Then, the SatComm will enter a Low Power Standby mode. It stays in this mode until the time interval for next scheduled transmission occurs, when it begins its warm-up, time update, and data collection and formatting sequence. All of the LEDs on the top panel will be OUT in Low Power Standby mode.

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In this state (low power standby mode), if a key is pressed, the SatComm “wakes up” and displays the following:

ON LINE 1 = Display System Status 2 = Go Off Line 3 = Clear Fail Safe Flag 4 = Go Back To Low Power Standby

Select 1 to launch the Display System Status menu. The details of this menu are shown on page 21. Select 2 to go back to the Off Line Menu

2 SATCOMM On Line Status: Exiting

Select 3 allows for a software intervention of a Failsafe condition. This performs the same function as the Failsafe button on the front panel. Select 4 to reenter the Low Power Standby state of On Line Mode.

4.3.4 GO TO ON AIR TEST MODE “Go To On Air Test Mode” is used to test the connections and operation of the DCP before going to “On Line Mode”. Note: The SatComm will only allow entry into “On Air Test Mode” if a GPS fix has occurred. If a GPS lock has not occurred the following message will be displayed:

4 GPS Lock Required Prior to On Air Test

After the SatComm has received a GPS fix, upon entering On Air Test, the unit will display the following before launching this test mode:

SATCOMM enters On Air Test mode after acquiring GPS time and date and performing autocalibration...please wait. Stevens SATCOMM Model No. 93876 Version No. 2.1

ON AIR TEST 1 = Display System Status 2 = Set the number of messages to be sent(default 1). 3 = Set the time between messages (default 2 minutes). 4 = Select test message type. 5 = Automatically go ON LINE when testing complete.

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6 = Send test message. B = Back

Select 1 to launch the Display System Status menu. The details of this menu are shown on page 21. Select 2 to set the number of messages, up to 10. 2

Enter a Number from 01 to 10: Select 3 to set the time between the messages (in minutes) if there is more than one: 3

Enter a Number from 01 to 10: Select 4 to select the message type. The following menu give a choice based upon baud rate and satellite:

4 Stevens SATCOMM Model No. 93876 Version No. 2.1 ON AIR TEST - TEST MESSAGE TYPE 1 = GOES East Test Message(GOES-13) 300 Baud 2 = GOES East Test Message(GOES-13) 1200 Baud 3 = GOES West Test Message(GOES-14) 300 Baud 4 = GOES West Test Message(GOES-14) 1200 Baud

Note: See Section 6.1 in the Appendix under FAQs for channel information for On Air Test Mode.

Select 5 to have the SatComm automatically enter “On Line Mode” when the test message is completed. Select 6 to send the test message:

6 Between transmissions hit any key to bring up the menu. FAIL SAFE CIRCUIT ENABLED, TRANSMISSION INITIALLY BLOCKED(R) SATCOMM PREPARING FOR TRANSMISSION(R) SATCOMM IS ATTEMPTING TO TRANSMIT(R) FAIL SAFE CIRCUIT ENABLED, TRANSMISSION IS ALLOWED(R) SATCOMM COMPLETED TRANSMISSION ATTEMPT(R) TRANSMISSIONS NOW BLOCKED BY DEFAULT(R)

If a key is pressed while the SatComm is between transmissions, then the following menu appears:


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ON AIR TEST 1 = Continue Test - Go Back To Low Power Standby 2 = Stop Test 3 = Set Fail Safe Flag 4 = Clear Fail Safe Flag

Make your selection to continue or stop the test, or set or clear the Failsafe condition.

4.3.5 GO TO MANUFACTURING TEST MODE

“Manufacturing Test Mode” is a mode for use only by Stevens qualified personnel for the purpose of testing and troubleshooting the SatComm. It is password protected to avoid possible misuse. This feature is not available to the end user.

4.3.6 GO TO CERTIFICATION TEST MODE

“Certification Test Mode” is a mode for use only by Stevens qualified personel for the purpose of running tests for demonstration to the NOAA GOES certification official. It is password protected to avoid possible misuse. This feature is not available to the end user.

4.3.7 GO TO DCPC MODE

“DCPC Mode” is a feature designed for future use and is not available to the end user at this time.

Note: This command is only intended to be used by qualified technicians under bench test conditions, where the RF output is connected to a dummy load, and is not being broadcast over the air. For further information, please contact Stevens Support at 1-800-452-5272.

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SECTION 5 INDEX: 5.1 MAINTENANCE ...................................................................... 53 5.2 TROUBLESHOOTING ............................................................ 53 TABLES: Table 5.1 Troubleshooting Guide .................................................. 54


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5.1 MAINTENANCE 5.1.1 Check battery voltage and condition during each site visit. a. System battery voltage: greater than 10.5 VDC (12.0 VDC for a lead-acid battery). b. Maintain a battery log. A well-documented record and long experience are the best indicators of battery performance and condition. Battery life will be reduced with extended high temperature operation. Battery capacity will generally be reduced with extended periods of cold weather, but will recover when warmed up. c. Rechargeable batteries will gradually lose capacity through multiple charge-discharge cycles, with shorter operating time periods between charging cycles. Maximum operating life will be obtained when the battery and SatComm are both connected to an appropriately filtered charger, such as the Stevens Battery Charger or a solar panel and JL-2 Solar Charge Regulator. The solar panel can be used to obtain maximum battery life with minimum maintenance in remote field installations. 5.1.2 Avoid moisture entry into the SatComm area when servicing the system. When operating in humid conditions or where there may be condensation, place and maintain a bag or two of fresh desiccant near the SatComm and inside any other protective NEMA-4 enclosure that is being used.

5.2 TROUBLESHOOTING The following is a guide to use for troubleshooting various operational problems with the transmitter System. These are conditions that should be checked before contacting the factory for assistance. If you cannot solve the problem in the field, call and ask for a Stevens Customer Technical Representative. The toll-free number for Stevens is 1-800-452-5272, and the call is free from Canada or the U.S.A. An alternative number is: 503-445-8000. Please provide an instrument description and serial number, when possible. Many questions can be answered by telephone, or you may obtain an authorization for return of the equipment, should that be necessary. The factory is open Monday through Friday from 7 a.m. to 5 p.m., in the Pacific Time Zone. If no one is available, leave a voice-mail message at any time; just clearly tell us your name, location, telephone number and how to reach you.


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SYMPTOM PROBLEM AREA TO CHECK No Power LED indication

No power to SatComm

Power supply connections or failure Voltage level low

No response to PC to USB or Touch Screen port for setup.

Can’t connect after repowering the unit. No response to commands.

See if unit is in Online mode Needs to be taken Off Line to connect

No transmissions Antenna failure or programming error.

Antenna connections NESDIS ID, interval, channel, transmit offset.

No serial communication

Serial Port error Wrong serial cableor poor connections Baud, bit count or parity not correct.

FailSafe LED on or flashing

FailSafe error Messages are too long or two frequent Press FS Reset to clear

BIST LED is lit solid

Built in Self Test has found a problem

Check Hardware Status under the Display System Status menu. Report result to Stevens service department

Table 5.1 Troubleshooting Guide

Service Record Notes:

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SECTION 6 INDEX: 6.1 FAQs………………................................................................... 59 6.2 SPECIFICATIONS ................................................................... 64 6.3 NESDIS CHANNEL AND FREQUENCY DESIGNATIONS..... 65

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6.1 FAQS Q. What are the channel assignments for On Air Test Mode? A. The assigned GOES test channels are as follows:

GOES West 300 Baud: Channel 196 GOES West 1200 Baud: Channel 499 (look for it on channel 200) GOES East 300 Baud: Channel 195 GOES East 1200 Baud: Channel 497

Q. Why do the LEDs go all the way out? I can’t tell if the unit is powered. A. When SatComm is OnLine, it is in low-power standby mode waiting for the schedule transmission time or for a Random transmission sequence. For optimum lowest power, the LEDs, which draw current, are turned off to conserve batter life. LEDs come on during a Timed or Random transmission sequence, or when the unit is in Off Line mode. Q. Why can’t I go Online until I have a GPS lock? A. We designed SatComm using a GPSDO (GPS disciplined oscillator) instead of an expensive and fault-prone OCXO. Because of this, the frequency stability is only ensured when there is a GPS lock. We make sure we have a frequency and time lock before going online. After the first initial GPS lock, the SatComm calibrates the internal RTC (real time clock) using the GPS acquired time and fixes the frequency so that it can continue transmitting within its channel assignment in the absence of GPS signal for up to 24 hours. Normally, a GPS lock is obtained every time the SatComm turns on for a scheduled transmission. Not getting a GPS lock is rare, and is a function of good GPS antenna placement. Q. Why is it taking so long to get a GPS lock? A. It can take up to 15min, depending on the part of the world that the SatComm unit was shipped to, for the GPS to receive all the almanac data from the GPS satellites. It is a good idea to allow the SatComm unit to stay in Off Line mode, with a GPS antenna connected, until a GPS fix is achieved before trying to go online. Q. Why can’t I connect with the GUI? A. There are a couple of reasons you may not be able to connect with the GUI:

1. In order to connect using the GUI, the SatComm needs to be in the Off Line Menu state (from the terminal program). If the unit was left in another menu (I.E. System Setup), then the GUI will not connect. You can either navigate back to the Off Line Menu or you can cycle the power to the unit.

2. If the unit was in OnLine mode (low power standby mode), then power was removed, you will not be able to connect using the GUI until the unit is repowered and a GPS lock is achieved (GPS LED is off) and SatComm has entered low-power standby mode again.

Q. Why are Manufacturing Test and Certification mode not available for customers? A. These modes are areas of the SatComm firmware that are only used by Stevens internal personel to do calibration and specific testing of the system that are unrelated to the customer’s use of the product. If the customer had access to the functions contained in this part of SatComm firmware, then there is potential to change the calibration and cause the unit to be out of spec and if used this way, could be flagged by the our certifying agency, NOAA.

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Q.What is the difference between “Low Power Standby Mode”, “Online Mode”, and “Off-Line Mode”? A. Low Power Standby Mode and Online Mode are the same. When the SatComm unit is Online, it is in a low power state that we call Low Power Standby Mode. All the LEDs are out and the unit is consuming the minimal amount of power. There is a process when the unit is put Online by either selecting 3 from the Off-Line Menu or pressing the “Switch to Online Mode” button in the GUI. Both the GUI and the terminal program will show the following message before getting to the Online state: SATCOMM acquiring GPS time and date Enter “B” to go back to Off Line SATCOMM Autocalibrating…..Please Wait SATCOMM On Line Status: Confirmed At this point SatComm is in Low Power Standby Mode, AKA On Line. Power will automatically come back on for either a Timed or Random transmission, and LEDs will light up. As soon as the unit is finished with the transmission, it will resume On Line mode (LEDs off). Off Line mode is when the SatComm is not in any scheduling mode. It is powered and waiting for instructions of commands. LEDs are lit. Off Line mode is used for doing setup and diagnostics. When the unit is prepared, it can then be put into On Line mode to begin (or resume) Standard and Random transmissions. Q. How do I get the SatComm unit Off-Line once it is Online? A. There are a couple of methods that can be used to go Off Line:

1. If the terminal program is used (such as Hyperterm) to go On Line, connect to SatComm with the terminal again and hit any key. The following message will be displayed:

ON LINE 1 = Display System Status 2 = Go Off Line 3 = Clear Fail Safe Flag 4 = Go Back To Low Power Standby

Select 2 to go Off Line

2. If the terminal program was used (such as Hyperterm) to go On Line, open up the GUI program SatCommSet and press the “Connect” button.

3. If the GUI program SatCommSet was used to go On Line, open up the GUI program SatCommSet again and press the “Connect” button. NOTE: if the GUI is used to go On Line, only the GUI can bring it back Off Line if the SatComm remains powered. You can get back Off Line with the terminal program if you repower the unit and follow the terminal prompts: SATCOMM acquiring GPS time and date. Enter 'B' to go back to Off Line. b SATCOMM On Line Status: Interrupted

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SATCOMM On Line Status: User Requested Off Line Stevens SATCOMM Model No. 93876 Version No. 2.1 Off Line Menu 1 = Display System Status 2 = Setup the System 3 = Go to On Line Mode 4 = Go to On Air Test Mode 5 = Go to Manufacturing Test Mode 6 = Go to Certification Mode 7 = Go to DCPC Mode X = Initiate System Reset

IMPORTANT: If the SatComm is in the middle of a transmission cycle, DO NOT attempt to go Off Line until the transmission cycle is finished and the unit enters Low Power Standby mode again (LEDs off).

Q. How is the External Data Logger connector setup? A. The external logger connector is setup as a DTE (data terminal equipment) and it uses a DB9-male connector. This was done in order to use a typical 9-pin, male - female RS232 cable to connect between the Stevens SatComm and the Stevens DL3000 data logger, which is a DCE (data communication equipment). If a different data logger is used that has a different DB9 cable or is a DTE connection, then an appropriate adapter will be necessary. Q. If I’m setting up multiple units using the GUI, how do I disconnect from one SatComm and connect to the next one? I don’t see a “disconnect” button. A. The current version of the GUI (SatCommSet 2.0) does not have a “disconnect” button. Once the new settings for the SatComm are uploaded, simply click the “X” in the upper right corner to close the setup window. After this click the “X” in the connection window of SatCommSet 2.0 to disconnect. A message window will appear stating, “Exit program without putting SatComm to online mode?”. Click “Yes” to exit SatCommSet 2.0. After this disconnect the USB cable (or DB9 cable if using the touch screen port for setup) and move on to the next unit. Reopen SatCommSet 2.0 and connect to this next unit. Note: If you setup the SatComm and then go online (waiting for GPS lock and RTC calibration), you can simply, close the GUI, unplug the USB cable and unpower the unit. The guidance above is for the case where you are not going online yet. Q. What is the DCP Command Receiver port used for? A. The idea behind the DCP Command Receiver port originated from NOAAs desire for two-way communications to the GOES transmitter. This is documented in the GOES V2.0 spec, but it is not implemented. Stevens decided to include this port in case the spec become reality sometime in the future. In the mean time, we have firmware that allows the data from any data logger to be echoed through this port. Sometimes customers want to have dual telemetry. This is possible using this feature. Just click the checkbox in the GUI under the DCP Setup tab to enable it. You can also use the terminal program in the External Logger Interface Setup, step 5, to enable this feature.

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Q. What other functions does the FailSafe Reset switch have? A. Besides clearing a FailSafe event (flag), the failsafe button can also be used to check to see if the system is “alive” while it is in Online mode. When the SatComm is in Low Power Standby Mode, press the failsafe button. The green LEDs for PWR and GPS will light for about 15 seconds then go out again as the unit enters Low Power Standby Mode again. Q. What is the difference between the USB port and the External Touch Screen port? A. There is no difference in the function of the USB port and the Touch Screen port. They both are used for setup and diagnostics for the SatComm. It is important to note, however that the USB port has priority if both are connected. Q. What happens if I set the baud rate of the USB port and the External Touch Screen port differently? A. You will need to make sure that when you are setting up the SatComm with the different ports, that the baud rate (and any other comm. port setting) is setup up to match the port you are using. Q. Why can’t I change the USB port and Touch Screen port settings in the GUI? They appear “grayed out” A. The default settings of the SatComm unit baud rate, data bits, parity, and stop bits is 38.4K baud, 8 data bits, no parity and 1 stop bit. Because these ports are just used for setup, it did not make sense to make them changeable. However, if you absolutely have to make a change, it is possible to do so with the terminal program. The “grayed out” setting will show this change in the GUI, but you will need to use the terminal program to change them back if needed. Q. What baud rate is used to echo the data to the DCP Command port? I see no settings for this in either the GUI or the terminal program. A. Correct. There is no setup necessary for this port other than enabling it for echoing the data. The default settings are 38.4k baud, 8 bit, no parity, and 1 stop bit. Q. What happens to my transmissions if the battery voltage falls below 10.5VDC or goes above 16VDC? A. If the battery voltage falls outside the range of 10.5 – 16.0VDC, the SatComm will inhibit the transmission until the voltage is within the specified range again. Q. What does VSWR mean and how can I ensure that it is a good measurement (low number)? A. VSWR stands for Voltage Standing Wave Ratio, and it is a measure of the ratio of signal power supplied to the load (antenna) vs how much signal power gets reflected back due to inefficiencies in the load impedence. To ensure that you have a good VSWR, which is a low number, make sure the RF output cable and antenna are connected properly. If the connectors on either the cable or antenna is miss-threaded, or damaged, or the cable or antenna is damaged, then the VSWR measurement number will be high (I.E. > 005.00). If the number measured is too high, then the SatComm will inhibit the transmissions in order to avoid damage to the unit. Q. How do hook up the chassis ground? A. Simply unscrew the terminal wing nut on the back panel (same side as the RF Output) and attach a heavy gage wire with either a spade of ring lug connectors at each end. Attach one side to the SatComm and tighten the wing nut down on it. Attach the other end to chassis ground of the DCP.

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Q. Why is lightning protection important and how can I implement lightning protection for my SatComm unit? A. Sometimes the DCP systems are installed in parts of the world that have high humidity and many lighting events. In this case it is advisable to use a lightning suppressor device on the RF output between the SatComm and the antenna. Stevens can supply this device and it is listed on the accessories list of the SatComm data sheet, Stevens P/N 92767-02. Also, ensure that chassis ground is installed. This will help protect the SatComm as well. Q. What happens if I accidentally connect my battery cables backward? A. The SatComm is equipped with reverse battery protection, so if the unit is accidentally connected incorrectly there will be no current draw and no power to the unit. Q. How much environmental protection does my SatComm unit have? A. While the SatComm is designed for a wide temperature range environment, it is not environmentally sealed. It is important to keep the SatComm unit inside an environmentally sealed enclosure such as a NEMA-4 enclosure. Q. How do I ensure good GPS function? A. To ensure the best GPS function, install the Mag-Mount GPS antenna on as large a metal surface (ground plane) as possible with the top side of the antenna pointed toward an open view of the sky. Try to avoid any obstructions that would get in the way of the GPS signal coming from the Satellites, such as metal objects, trees, buildings, rooftops, etc. It is possible to receive GPS signals inside an enclosure or building, but the GPS signals will be greatly attenuated and getting a GPS lock will take longer.

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6.2 SPECIFICATIONS: a. Power Requirements: 10.5 – 16.0 VDC, <2 mA standby current in CTS trigger mode <300 mA pre-transmit preparation current < 3 A transmit current b. User interface: USB Type B 3X DB9, 9-pin "D SUB" connector SMA, female GPS antenna connector N-Type, female RF Output connector c. Timekeeping: GPS discipline before each transmission, with ½ hour interval real time clock calibrations. d. Transmit Baud: 300/1200, random or self-timed e. Antennas: Stevens RHCP V2TH Helical, gain +5.5dBi Stevens RHCP V4TH Helical, gain +10dBi Stevens RHCP Yagi, gain +11dBi f. Power output: 1.0 Watt nominal g. Environmental: -40 to +65 degrees C, 0 – 95% humidity, non- condensing h. Indicators: Pwr (unit is on, lit solid when not in On Line Mode) TX (Transmitter activity; lit solid when transmitting a message) FS (Failsafe trip indicator; flashes when Failsafe is tripped) GPS (GPS activity; lit solid when fix is acquired, except in On Line Mode) RX (Serial port receiving data) BIST (built in self test. Lit solid when there is an error) i. Dimensions: 7.2 x 4.6 x 2.1 inches (w x d x h) 183 x 117 x 54 mm j. Weight: 1.7 lbs. 0.77 kg

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6.3 NESDIS CHANNELS AND FREQUENCY DESIGNATIONS, 300/1200 BAUD

GOES CHANNELS AND FREQUENCIES CHANNEL NUMBER

CENTER FREQUENCY

CHANNEL NUMBER

CENTER FREQUENCY

CHANNEL NUMBER

CENTER FREQUENCY

1 401.701000 323 401.734750 46 401.768500 301 401.701750 24 401.735500 346 401.769250 2 401.702500 324 401.736250 47 401.770000 302 401.703250 25 401.737000 347 401.770750 3 401.704000 325 401.737750 48 401.771500 303 401.704750 26 401.738500 348 401.772250 4 401.705500 326 401.739250 49 401.773000 304 401.706250 27 401.740000 349 401.773750 5 401.707000 327 401.740750 50 401.774500 305 401.707750 28 401.741500 350 401.775250 6 401.708500 328 401.742250 51 401.776000 306 401.709250 29 401.743000 351 401.776750 7 401.710000 329 401.743750 52 401.777500 307 401.710750 30 401.744500 352 401.778250 8 401.711500 330 401.745250 53 401.779000 308 401.712250 31 401.746000 353 401.779750 9 401.713000 331 401.746750 54 401.780500 309 401.713750 32 401.747500 354 401.781250 10 401.714500 332 401.748250 55 401.782000 310 401.715250 33 401.749000 355 401.782750 11 401.716000 333 401.749750 56 401.783500 311 401.716750 34 401.750500 356 401.784250 12 401.717500 334 401.751250 57 401.785000 312 401.718250 35 401.752000 357 401.785750 13 401.719000 335 401.752750 58 401.786500 313 401.719750 36 401.753500 358 401.787250 14 401.720500 336 401.754250 59 401.788000 314 401.721250 37 401.755000 359 401.788750 15 401.722000 337 401.755750 60 401.789500 315 401.722750 38 401.756500 360 401.790250 16 401.723500 338 401.757250 61 401.791000 316 401.724250 39 401.758000 361 401.791750 17 401.725000 339 401.758750 62 401.792500 317 401.725750 40 401.759500 362 401.793250 18 401.726500 340 401.760250 63 401.794000 318 401.727250 41 401.761000 363 401.794750 19 401.728000 341 401.761750 64 401.795500 319 401.728750 42 401.762500 364 401.796250 20 401.729500 342 401.763250 65 401.797000 320 401.730250 43 401.764000 365 401.797750 21 401.731000 343 401.764750 66 401.798500 321 401.731750 44 401.765500 366 401.799250 22 401.732500 344 401.766250 67 401.800000 322 401.733250 45 401.767000 367 401.800750 23 401.734000 345 401.767750 68 401.801500 368 401.802250 91 401.836000 413 401.869750 69 401.803000 391 401.836750 114 401.870500

6. Appendices ________________________________________________________

66 93876-001

CHANNEL NUMBER

CENTER FREQUENCY

CHANNEL NUMBER

CENTER FREQUENCY

CHANNEL NUMBER

CENTER FREQUENCY

369 401.803750 92 401.837500 414 401.871250 70 401.804500 392 401.838250 115 401.872000 370 401.805250 93 401.839000 415 401.872750 71 401.806000 393 401.839750 116 401.873500 371 401.806750 94 401.840500 416 401.874250 72 401.807500 394 401.841250 117 401.875000 372 401.808250 95 401.842000 417 401.875750 73 401.809000 395 401.842750 118 401.876500 373 401.809750 96 401.843500 418 401.877250 74 401.810500 396 401.844250 119 401.878000 374 401.811250 97 401.845000 419 401.878750 75 401.812000 397 401.845750 120 401.879500 375 401.812750 98 401.846500 420 401.880250 76 401.813500 398 401.847250 121 401.881000 376 401.814250 99 401.848000 421 401.881750 77 401.815000 399 401.848750 122 401.882500 377 401.815750 100 401.849500 422 401.883250 78 401.816500 400 401.850250 123 401.884000 378 401.817250 101 401.851000 423 401.884750 79 401.818000 401 401.851750 124 401.885500 379 401.818750 102 401.852500 424 401.886250 80 401.819500 402 401.853250 125 401.887000 380 401.820250 103 401.854000 425 401.887750 81 401.821000 403 401.854750 126 401.888500 381 401.821750 104 401.855500 426 401.889250 82 401.822500 404 401.856250 127 401.890000 382 401.823250 105 401.857000 427 401.890750 83 401.824000 405 401.857750 128 401.891500 383 401.824750 106 401.858500 428 401.892250 84 401.825500 406 401.859250 129 401.893000 384 401.826250 107 401.860000 429 401.893750 85 401.827000 407 401.860750 130 401.894500 385 401.827750 108 401.861500 430 401.895250 86 401.828500 408 401.862250 131 401.896000 386 401.829250 109 401.863000 431 401.896750 87 401.830000 409 401.863750 132 401.897500 387 401.830750 110 401.864500 432 401.898250 88 401.831500 410 401.865250 133 401.899000 388 401.832250 111 401.866000 433 401.899750 89 401.833000 411 401.866750 134 401.900500 389 401.833750 112 401.867500 434 401.901250 90 401.834500 412 401.868250 135 401.902000 390 401.835250 113 401.869000 435 401.902750 136 401.903500 458 401.937250 181 401.971000 436 401.904250 159 401.938000 481 401.971750 137 401.905000 459 401.938750 182 401.972500 437 401.905750 160 401.939500 482 401.973250 138 401.906500 460 401.940250 183 401.974000 438 401.907250 161 401.941000 483 401.974750 139 401.908000 461 401.941750 184 401.975500 439 401.908750 162 401.942500 484 401.976250 140 401.909500 462 401.943250 185 401.977000 440 401.910250 163 401.944000 485 401.977750 141 401.911000 463 401.944750 186 401.978500 441 401.911750 164 401.945500 486 401.979250

6. Appendices ________________________________________________________

67 93876-001

CHANNEL NUMBER

CENTER FREQUENCY

CHANNEL NUMBER

CENTER FREQUENCY

CHANNEL NUMBER

CENTER FREQUENCY

142 401.912500 464 401.946250 187 401.980000 442 401.913250 165 401.947000 487 401.980750 143 401.914000 465 401.947750 188 401.981500 443 401.914750 166 401.948500 488 401.982250 144 401.915500 466 401.949250 189 401.983000 444 401.916250 167 401.950000 489 401.983750 145 401.917000 467 401.950750 190 401.984500 445 401.917750 168 401.951500 490 401.985250 146 401.918500 468 401.952250 191 401.986000 446 401.919250 169 401.953000 491 401.986750 147 401.920000 469 401.953750 192 401.987500 447 401.920750 170 401.954500 492 401.988250 148 401.921500 470 401.955250 193 401.989000 448 401.922250 171 401.956000 493 401.989750 149 401.923000 471 401.956750 194 401.990500 449 401.923750 172 401.957500 494 401.991250 150 401.924500 472 401.958250 195 401.992000 450 401.925250 173 401.959000 595 401.992750 151 401.926000 473 401.959750 196 401.993500 451 401.926750 174 401.960500 496 401.994250 152 401.927500 474 401.961250 197 401.995000 452 401.928250 175 401.962000 497 401.995750 153 401.929000 475 401.962750 198 401.996500 453 401.929750 176 401.963500 498 401.997250 154 401.930500 476 401.964250 199 401.998000 454 401.931250 177 401.965000 499 401.998750 155 401.932000 477 401.965750 200 401.999500 455 401.932750 178 401.966500 500 402.000250 156 401.933500 478 401.967250 201 402.001000 456 401.934250 179 401.968000 501 402.001750 157 401.935000 479 401.968750 202 402.002500 457 401.935750 180 401.969500 502 402.003250 158 401.936500 480 401.970250 203 402.004000 503 402.004750 226 402.038500 548 402.072250 204 402.005500 526 402.039250 249 402.073000 504 402.006250 227 402.040000 549 402.073750 205 402.007000 527 402.040750 250 402.074500 505 402.007750 228 402.041500 550 402.075250 206 402.008500 528 402.042250 251 402.076000 506 402.009250 229 402.043000 551 402.076750 207 402.010000 529 402.043750 252 402.077500 507 402.010750 230 402.044500 552 402.078250 208 402.011500 530 402.045250 253 402.079000 508 402.012250 231 402.046000 553 402.079750 209 402.013000 531 402.046750 254 402.080500 509 402.013750 232 402.047500 554 402.081250 210 402.014500 532 402.048250 255 402.082000 510 402.015250 233 402.049000 555 402.082750 211 402.016000 533 402.049750 256 402.083500 511 402.016750 234 402.050500 556 402.084250 212 402.017500 534 402.051250 257 402.085000 512 402.018250 235 402.052000 557 402.085750 213 402.019000 535 402.052750 258 402.086500 513 402.019750 236 402.053500 558 402.087250 214 402.020500 536 402.054250 259 402.088000

6. Appendices ________________________________________________________

68 93876-001

CHANNEL NUMBER

CENTER FREQUENCY

CHANNEL NUMBER

CENTER FREQUENCY

CHANNEL NUMBER

CENTER FREQUENCY

514 402.021250 237 402.055000 559 402.088750 215 402.022000 537 402.055750 260 402.089500 515 402.022750 238 402.056500 560 402.090250 216 402.023500 538 402.057250 261 402.091000 516 402.024250 239 402.058000 561 402.091750 217 402.025000 539 402.058750 262 402.092500 517 402.025750 240 402.059500 562 402.093250 218 402.026500 540 402.060250 263 402.094000 518 402.027250 241 402.061000 563 402.094750 219 402.028000 541 402.061750 264 402.095500 519 402.028750 242 402.062500 564 402.096250 220 402.029500 542 402.063250 265 402.097000 520 402.030250 243 402.064000 565 402.097750 221 402.031000 543 402.064750 266 402.098500 521 402.031750 244 402.065500 566 402.099250 222 402.032500 544 402.066250 522 402.033250 245 402.067000 223 402.034000 545 402.067750 523 402.034750 246 402.068500 224 402.035500 546 402.069250 524 402.036250 247 402.070000 225 402.037000 547 402.070750 525 402.037750 248 402.071500

NOTE: BOLD TYPE Face identifies potential 1200 bps Channel assignments.

stevens satcomm goes ver 2.0 satellite transmitter to be used. if continuous self-timed message...

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