ybt250

Features & Benefits

Spectrum Analyzer – Preamp for Great Sensitivity – Seven Markers, Two Traces,

Five Trace Modes for FlexibleMeasurements

– Intermodulation MarkersAllow Quick Checks for thisCommon Problem

– Specifications Optimized forInterference Hunting

Interference Analysis Tool Set – Finds Interference Fast – Spectrogram Display for

Discovery and Logging ofIntermittent Signals

– Signal Strength, AM/FMDemodulation and NoiseFloor Measurements Assistwith Identification andLocation of Signals

Multi-Standard Scanners for Carrier Issues – Reveals Many Common

Coverage Problems, both In-building and Outdoors

– Scanners for GSM/GMSK/EDGE, UMTS/W-CDMA/HSDPA,cdmaOne/cdma2000 andcdma2000 1xEV-DO Signals

iMap Integrated Mapping Built-infor In-field Analysis of Problems – Integrates any Spectrum,

Interference or CarrierMeasurement Directly intoUser-provided Map

– No Need to Return to the Office for Analysis of Difficult Problems

– Maps In-building Signals with a Tap-and-Walk-and-Tap Interface

– Maps Outside, OptionallyDriven by GPS

Handheld Form Factor – Field Tested – Rugged – Touch Screen for Intuitive Use – Long Battery Life

Applications

Exploration, Discovery, Analysisand Documentation of Interferenceand Coverage Issues both Indoorsand Outdoors

Signal Clearing During GreenField Installs

Troubleshooting Interference andCoverage Issues, both In-buildingand Outside

Wireless Field TestRF Scout™ Interference Hunter

Explore, Discover, Analyze and Document Interference and Coverage Issues In-Building and Outdoors

Outstanding Interference Analysis Capabilities The RF Scout™ is a rugged handheld toolthat helps with every aspect of RF signaldebugging and optimization. The RF Scoutdeals with out-of-channel interference, in-channel interference and coverage issues.And since a signal that might be good inone location can cause an interference orcoverage issue in another, the RF Scoutmaps those measurements. It provides all the tools needed forExploration, Discovery, Analysis andDocumentation of interference while theuser remains in the field. In addition, the

RF Scout is designed to work both outsideand in-building. In this case, the whole istruly more than the sum of its parts.

Figure 1. In-building Signal Measurements,color coded for in-field analysis.


Wireless Field Test • www.tektronix.com/networktest2

Handheld Spectrum Analyzer The RF Scout™ is a spectrum analyzerwith just the right set of capabilities forinterference hunting. The basic spectrumanalyzer has great sensitivity, a preamp,manual and coupled controls, two traces,seven markers, channel tables and all theother capabilities you would expect froma powerful handheld spectrum analyzer.But what makes this instrument excel isthe touch screen interface, which allowsshallow menu systems and an intuitiveuser interface, so it’s easy to find all of thecontrols. For instance, markers can beplaced by touching the screen above thedesired signal. Quick instrument manipu-lation translates to finding RF problemsfaster, particularly intermittent problems.

Interference Measurements:Intermittent Signals While the RF Scout sensitivity allows usersto see interfering signals, the Spectrumand Spectrogram screen is great for bothidentifying intermittent signals and datalogging. The spectrogram allows users tocapture spectrum activity while displayingfrequency, time and power information.The spectrogram is capable of capturingdata over extended time frames of hours,days or weeks, and with time marks. This allows users to pin down just whenintermittent interference occurs withoutany need to personally be on-site. Spectrum and Spectrogram results canbe used for data logging, as mentionedabove. It is also possible to remotely controlthe RF Scout, using the Y400 Virtual CEoption. This allows users to monitor theprogress of the data logging, and see faultswhenever they occur, without traveling tothe signal monitoring site.

Single Point Data Logging Sometimes, interference locations areknown but the behavior or timing of thesignal is unknown. In this case, the RFScout™ can be used as a signal logger.With the addition of a compact flash ramand a PCMCIA adapter, the RF Scouthas quite a bit of data memory available.This memory can be used to recordspectrum traces, spectrum mask viola-tions, spectrograms or scanner data. If an unusual signal is present, the RFScout can capture it. The automatically generated spectrummask (red), in combination with normaltraces (blue) and a min/max trace (mus-tard), is particularly useful since this allowsusers to ignore carriers and signals thatare known to be good and only save timestamped data when unusual signals arepresent. Early data reduction is importantwhen looking for intermittent problems.

Figure 2. Powerful handheld spectrumanalyzer with simple-to-use touch screeninterface.

Figure 3. Spectrum/Spectrogram measure-ment easily spots intermittent signals.

Figure 4. Trace mask allows logging onlyviolations, reducing later analysis tasks


Wireless Field Test • www.tektronix.com/networktest 3

Interference Measurements:Locating and Measuring The RF Scout rounds out its interferencepackage with a quartet of popular interfer-ence hunting screens that techniciansand engineers have used for years to findinterference. The signal strength screen is the centerpiece of this set of measure-ments. This screen provides an easy wayto locate signals with an audible tone.This allows quick direction finding whileallowing your eyes to follow the aimingpoint of the directional antenna. Changingthe signal selected is as easy as touchingthe screen over the new signal to bemeasured. Field Strength is useful when

measuring human exposure to RF poweror when checking power at a location. A unique variation of the field strengthmeasurement allows measurements ofthe field strength of individual UMTS NodeB Scrambling Codes. AM and FM demod-ulation capability is useful when identifyingsignals by their sound or station ID. TheNoise Floor measurement gives users onenumber that reflects the overall receptionconditions for a given channel. Finally, codedomain and codogram measurements areprovided for cdma2000, W-CDMA and EV-DO. Taken together with the spectrogramand spectrum analyzer capability, the RFScout offers a complete set of interferencehunting tools in a handheld form factor.

Optional Scanner Set One:GSM/GPRS/EDGE and UMTS/W-CDMA/HSDPA The GSM/GPRS/EDGE and the UMTS/W-CDMA/HSDPA scanner set add thecapability to evaluate coverage and co-channel interference from neighboring basestations. This enables RF Scout users todetermine the effect of many different NodeB or GSM base station adjustments. Thisincludes the effect of the adjustments on pilotpollution, in the case of UMTS and fre-quency reuse issues for GSM base stations.The GSM scanner identifies the channel,frequency, power, channel type, C/I and, ifthe signal is a control channel, the BSIC.The UMTS Scanner identifies the scramblingcodes, Ec ad Ec/Io for up to 10 codes.

Figure 5. The RF Scout™ comes with many other interference tools.

Figure 6. GSM/TTDGT Channel Scanner.

Figure 7. W-CDMA Scrambling Code Analysis.


Optional Scanner Set Two:cdmaOne/cdma2000 and 1x-EV-DO Scanners The cdma2000 and the EV-DO scannerset add the capability to evaluate cover-age and co-channel interference fromneighboring base stations. This optionautomatically identifies the 10 strongestPN Offsets for the 10 strongest pilots and graphically displays their power level,timing error and Ec/Io. This enables RFScout™ users to determine the effect ofmany different base station adjustments,including the effects of adjustments onpilot pollution.

iMap Integrated Mapping Option RF measurements, when made over theair, are location sensitive. A measuredvalue that might be good in one locationis interference in another. In addition, mostRF surveys create enough numbers thatusers resort to writing them down anyway,perhaps on a map. For this reason, theRF Scout can map its measurements,both for interference and coverage, usingon-board mapping capability for bothindoor and outdoor mapping needs.

In-Building Integrated Signal Mapping In-building mapping capability is illustratedabove, at an airport terminal. Measure-ments can either be placed directly on the floor plan bitmap by the user, or beplaced automatically. A simple Tap-and-Walk-and-Tap user interface automaticallypositions timed measurements alongcorridors and hallways. To make the displayeven more intuitive, the color of the meas-urement border represents signal strength.If more information is needed on a specificmeasurement, just tap the measurementbox. The RF Scout will show the full-screenversion of the measurement, allowingcomplete analysis of interference, coverageand distributed antenna faults in the field.

Outdoors Manual Signal Mapping In a similar manner, spectrum traces,interference measurements and carrierscans can be taken outdoors. Individualmeasurements can be placed on a bitmap, or any vector map converted from anumber of popular formats. Measurementicons can be placed on the map anddirectional arrows added to help in theanalysis. This allows users to have allsignal, location and directional informationon one screen, in one place so thatcomplex interference issues can besolved in the field.


Figure 8. cdma2000 and 1xEVDO PN Scanner.

Figure 9. In-building mapping is done with a Tap-and-Walk-and-Tap interface.

Figure 10. Manual signal plotting providespower, location and direction for eachmeasurement.



Automatic Outdoor GPSReferenced Signal Mapping Results mapping can also be driven bythe available GPS. In this case, maps inseveral grid formats can be imported tothe RF Scout™. Spectrum, interference orcarrier scans can be automatically placedon the map, by GPS coordinates, allowinganalysis in the field. Automatic measure-ments can be placed on the map every somany seconds, feet or meters. In addition,individual measurements can be placedon a map together with the automaticmeasurements, allowing users the abilityto get all the information in one spot.Geo-referenced results can be savedeither as a data table, or with a map.

Data table results can be imported intoexisting popular mapping programs suchas MapInfo, for analysis along with othergeo-referenced data. Mapped results canalso be analyzed on RF Scout PC, thePC version of the RF Scout software,which runs on Windows laptops. So theRF Scout can be used to gather spectrumtraces, interference measurements andscanner results and then either analyzethe information in the field or integrate theresults with information from other meas-urement tools. The RF Scout provides thecomplete solution for interference analysis.

Easy to Use The RF Scout is based around the familiarWindows CE operating system. As a result,users will spend less time learning theinstrument and more time finding interfer-ence. The RF Scout puts measurementfunctions just a point of the finger away.Also, built-in help guides speed the meas-urement process, and common measure-ments have been optimized for quick,repeatable results. Finally, the WindowsCE operating system makes getting filesand data on and off the instrument easy.

The Module and the Platform The RF Scout is a product conceived for RFperformance and optimization engineers.It consists of a Y400 base unit, a YBT250RF Module, one of several software pack-ages, and optionally, a GPS unit, theYBGPS1. The Y400 platform includes thedisplay, power supply, CPU and battery. If you already have a Y400 and a YBT250,the RF Scout software can be installed onyour existing units. Available antenna testand T1/E1 modules allow you to tailor theRF Scout to service the standards andinterfaces in use in your network. The modular design also means that theinstrument can easily be upgraded. Newmeasurements or standards can beadded with software upgrades or withadditional modules.

Figure 11. Automatic signal plotting showsgeographic signal changes.

Figure 12. NetTek®/RF Scout™ platformcombined with test modules.


Characteristics RF Scout YBT250 Module

Operation Modes

Spectral Analysis.

Interference Analysis.

Carrier Scanning.

In-Building Integrated Signal Mapping.

Outdoors Manual Signal Mapping.

Automatic Outdoors GPS Referenced Signal Mapping.

General Specifications

Frequency Characteristics Input Range – 30 MHz to 2500 MHz.Internal Frequency Accuracy (Time Base Error) – ±0.5 ppm (±0.015 ppm typical, after GPS lock.Requires YBGPS1.) Internal Frequency Aging (Time Base Error) – ±1 ppm/yr.Available Spans (in Spectrum Monitoring) – 10 kHz to 2470 MHz.Resolution Bandwidths – 10 Hz to 6 MHz.Phase Noise – ≤–75 dBc/Hz at 20 kHz offset.

Amplitude Characteristics (CW or peak envelope, meas-ured in 10 kHz span, typical) RF Field Strength –

±0.75 dB: –20 dBm to +30 dBm, ±0.5 dB, typical.±1.25 dB: –80 dBm to –20 dBm, ±1.0 dB, typical.

Amplitude Range – DANL+1 dB to +30 dBm.RF Input Overload Protection – +30 dBm to 50 W.Signal Related Spurious Response – IM3 better than –70 dBc, typical.2nd harmonic better than –60 dBc, typical.DANL – –152 dBm typical, 10 Hz RBW, 200 to 2000 MHz.Noise Figure – ≤10 dB, 200 MHz to 2000 MHz.Amplitude Display – 10 Divisions; 1 to 10 dB per division.Spectrum Display Modes – Max, Min, Min-Max, Normal, Average, Dual Trace,Saved, Off.

Inputs RF – 50 Ω, type N female.External Frequency Reference – 50 Ω, type BNC (f).freqin – 2, 4.8, 10, 13, 15 or 19.6608 MHz and others.Automatically detected.Timing Input – 10 kΩ, type BNC (f).

Interference Analysis Standard Displays – Spectrum, Spectrum/Spectrogram, Signal Strength,AM/FM Demod, Noise Floor.

Scanners, for Coverage andCo-channel Interference

GSM/GPRS/EDGE Channel ScannerInput Signal Range – –120 dBm to + 30 dBm.C/I Ratio Range – 0 dB to 50 dB.Resolution –

Frequency: 0.001 MHz.Peak Power: 0.1 dBm.C/I: 0.1 dB.

Accuracy – ±1 dB, –20 dBm to +30 dBm.±0.75 dB typical for identified GSM channels.

W-CDMA/UMTS/HSDPA Scrambling Code AnalyzerInput Signal Range – –117 dBm to + 30 dBm.Resolution – 0.1 dB.Accuracy (Ec) – ±2 dB for Ec ≥–102 dBm and Ec/Io ≥–12 dB (typical).

cdma2000 PN ScannerInput Signal Range – –120 dBm to +30 dBm.Resolution –

Io, Ec/Io, Ec: –0.1 dB.PN Offset: 1 PN index.Tau: 0.1 chip.

Accuracy – Ec: ±2 dB for Ec ≥–95 dBm and Ec/Io ≥–8 dB(typical).Tau – ±0.5 chip, of highest power multipath component of each detected PNOS, relative to input timingreference (ESC or YBGPS1).

1xEV-DO PN Offset ScannerInput Signal Range – –120 dBm to +30 dBm.Resolution –

Io, Ec/Io, Ec: 0.1 dB.PN Offset: 1 PN Index.

Accuracy – Ec: ±2.5 dB for Ec ≥–95 dBm and Ec/Io ≥–8 dB(typical).Tau – ±0.5 chip of highest power multipath component of each detected PN Offset, relative to input timingreference (ESC or YBGPS1).

iMap MappingMap types Accepted –

USGS DLG (*.opt) (PC-based converter provided).MapInfo (*.mif).ESRI ArcInfo Shape (*.shp) (PC-based converterprovided).Bitmaps (*.bmp).RF Scout™ map with results (.zip).

Physical Characteristics YBT250 Test Module Weight – 1.4 kg/3.1 lbs.NetTek Mainframe Weight – 4.1 kg/9.04 lbs.Temperature –

Operating – Specified temperature range: 0 ºC to 50 ºC.Functional temperature range: –10 ºC to +50 ºC.

Storage – –40 ºC to +60 ºC.Calibration – 2-year cycle.Warranty – 1 year.Dimensions mm in.Height 187 7.375 Width 241 9.5 Depth 32 1.25 Weight kg lbs.Net 1.4 3.1




Ordering Information

Opt. RFS1 – iMap, Spectrum Analysis andInterference Analysis.

Opt. RFS11 – Spectrum Analysis, InterferenceAnalysis, GSM/GPRS/EDGE Scanner and UMTS/W-CDMA/HSDPA Scanner.

Opt. RFS12 – iMap and Spectrum Analysis,Interference Analysis, GSM/GPRS/EDGE Scannerand UMTS/W-CDMA/HSDPA Scanner.

Opt. RFS21 – Spectrum Analysis, InterferenceAnalysis, cdmaOne/cdma2000 Scanner andcdma2000 1x EV-DO Scanner.

Opt. RFS22 – iMap and Spectrum Analysis,Interference Analysis, cdmaOne/cdma2000Scanner and cdma2000 1x EV-DO Scanner.

Opt. L0 – English manual for YBT250.

Service

Opt. C3 – Calibration Service 3 years.

Opt. C5 – Calibration Service 5 years.

Opt. D1 – Calibration Data Report.

Opt. D3 – Calibration Data Report 3 years (with Opt. C3).

Opt. D5 – Calibration Data Report 5 years (with Opt. C5).

Opt. R3 – Repair Service 3 years.

Opt. R5 – Repair Service 5 years.

Suggested RF Scout Y400 Accessories

Y400 Opt. VCE – Virtual CE Remote Control.

One Additional Li-Ion Battery, for a Total of Two, and 8 Hours of Use (Typical) –Order 146-0127-01.

Mini Keyboard – Order 118-9402-00.

YBGPS1 – GPS and Timing Reference for the RF Scout.

Suggested RF ScoutAccessories

Sniffer Antenna, Broadband – Order 119-6609-00.

Beam Antenna, 824 to 896 MHz –Order 119-6594-00.




Magnetic Mount Antenna, 824 to 2170 MHz –Requires 103-0449-00 adapter. Order 119-6970-00.

Antenna Adapter Type-N (M) to FME (M), for119-6970-00 Antenna – Order 103-0449-00.

RF Scout™ YBT250 Options

RF Scout software package run on a Y400 base unit and an YBT250 spectrum analyzer unit. Most options also require or recommend the YBGPS1 GPS receiver.

RFS1 RFS11 RFS12 RFS21 RFS22

Spectrum Analyzer and Interference Analysis X X X X X

iMap Integrated Mapping X X X

GSM/GPRS/EDGE Scanner X X

UMTS/W-CDMA/HSDPA Scanner X X

cdmaOne/cdma2000 Scanner X X

cdma2000 1x EV-DO Scanner X X

YBGPS1 Required X X

YBGPS1 Recommended X X


Pre-filter, General-purpose, 824 to 2500 MHz,Type-N (F) Connector – Order 119-7246-00.

Pre-filter, 850 MHz Uplink Band, 824 to 849 MHz, Type-N (F) Connector –Order 119-7245-00.

Pre-filter, 850 MHz Downlink Band, 869 to 894 MHz, Type-N (F) Connector –Order 119-7023-00.





Cable, 50 Ω, BNC (M) 3-foot (91 cm) –Order 012-0482-00.

Cable, 50 Ω, Straight Type-N (M) and AngledType-N (M) Connector, 1.6 Foot (50 cm) –Order 174-4977-00.

Cable, 50 Ω, Type-N (M) to Type-N (M)Connector, 3 Foot (91 cm) – Order 174-5002-00.

Cable, 50 Ω, Low-precision Type-N (M) to Type-N (M) Connector, 6-Foot Cable (1.83 m) –Order 012-0114-00.

Cable, 50 Ω, Type-N (M) to Type-N (M)Connector, Low VSWR, High Shielding, 6 foot(182 cm) – Order 012-1683-01.

Cable, 50 Ω, Precision, Amplitude and PhaseStable, Type-N (M) to Type-N (M) Connector,10 foot (3.0 m) – Order 012-1619-00.

DC Block, Type-N (F) to Type-N (M)Connector – Order 119-6598-00.

Calibrated Coupler, Type-N Connectors,500 to 1000 MHz – Order 119-6600-00.

Directional Coupler, Type-N Connectors,920 to 2200 MHz – Order 119-6601-00.

Power Splitter/Combiner, Type-N (F)Connectors, 1 W, 200 MHz to 2.5 GHz –Order 119-7024-00.

Attenuator, Type-N (F) to Type-N (M)Connector, 50 W, 20 dB – Order 119-6599-00.

Adapter, Universal Kit, 30 Pieces –Order 119-6602-00.

Adapter, Type-N (M) to BNC (F) –Order 103-0045-00.

Adapter, Type-N (M) to Type-N (M) –Order 103-0430-00.

Adapter, Right Angle, Type-N (M) to Type-N (F) – Order 103-0448-00.

Adapter, Barrel, Type-N (F) – Order 103-0429-00.

Adapter, 7/16 (F) to Type-N (F) –Order 103-0431-00.

Adapter, 7/16 (M) to Type-N (F) –Order 103-0432-00.

Adapter, SMB (F) to BNC (M) –Order 174-3578-00.

Metal Cap, BNC – Order 200-0678-00.

Metal Cap, Type-N – Order 200-4696-00.

Contact Tektronix:ASEAN / Australasia (65) 6356 3900

Austria +41 52 675 3777

Balkan, Israel, South Africa and other ISE Countries +41 52 675 3777

Belgium 07 81 60166

Brazil & South America 55 (11) 3741-8360

Canada 1 (800) 661-5625

Central East Europe, Ukraine and the Baltics +41 52 675 3777

Central Europe & Greece +41 52 675 3777

Denmark +45 80 88 1401

Finland +41 52 675 3777

France & North Africa +33 (0) 1 69 86 81 81

Germany +49 (221) 94 77 400

Hong Kong (852) 2585-6688

India (91) 80-22275577

Italy +39 (02) 25086 1

Japan 81 (3) 6714-3010

Luxembourg +44 (0) 1344 392400

Mexico, Central America & Caribbean 52 (55) 56666-333

Middle East, Asia and North Africa +41 52 675 3777

The Netherlands 090 02 021797

Norway 800 16098

People’s Republic of China 86 (10) 6235 1230

Poland +41 52 675 3777

Portugal 80 08 12370

Republic of Korea 82 (2) 528-5299

Russia & CIS +7 (495) 7484900

South Africa +27 11 254 8360

Spain (+34) 901 988 054

Sweden 020 08 80371

Switzerland +41 52 675 3777

Taiwan 886 (2) 2722-9622

United Kingdom & Eire +44 (0) 1344 392400

USA 1 (800) 426-2200

For other areas contact Tektronix, Inc. at: 1 (503) 627-7111

Updated 28 February 2006

Our most up-to-date product information is available at:www.tektronix.com

Copyright © 2006, Tektronix. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publicationsupersedes that in all previously published material. Specification and pricechange privileges reserved. TEKTRONIX and TEK are registered trademarks of Tektronix, Inc. All other trade names referenced are the service marks,trademarks or registered trademarks of their respective companies.

4/06 HB/WOW 2EW-19554-1

Product(s) are manufactured in ISO registered facilities.

Product(s) complies with IEEE Standard 488.1-1987, RS-232-C, and withTektronix Standard Codes and Formats.

ybt250

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