U-Link Radios - Rx and TRx

Radio link is critical for GNSS applications as the quality of real-time corrections guarantees reliable data collection and accurate positioning. The new U-Link radios exceed the standard by offering cost-effective, high-quality data links:

n Extended UHF performancen Low consumptionn Rugged and lightweight transmitter casing

U-Link RxU-Link Rx is a radio receiver covering the band from 410 to470 MHz with 12.5-kHz channel spacing. It is available as anembedded radio module in the ProMark 500 GNSS rover andas a built-in board in the ProFlex 500 GNSS receiver. The newU-Link Rx is fully compatible with the legacy UHF transmitters.

The U-Link receiver kit includes a radio module and a whip antenna.

U-Link TRx The U-Link TRx is a radio transmitter/receiver covering the band from from 410 to 470MHz with 12.5-kHz channel spacing. It is fully compatible with the new U-Link Rx, existing12.5-kHz UHF receivers sold with ProMark 500 and ProFlex 500 GNSS receivers as wellas with the legacy UHF receivers.

The U-link TRx is built in a small-size, lightweight and rugged aluminum package (IP 65). It offers three different levels of output power: 0.5, 2 and 4 W and is available as a repeater when the UHF coverage needs to be extended. U-Link TRx is certified for both Europe and North America.

Cost-effective and High-quality Data LinksDue to a high-sensitivity level on the reception side and the use of state of the art technology available today,the U-Link radios can achieve an impressive range, equivalent to that of a conventional radio link transmittingup to 10 times the U-Link TRx output power. This is particularly important in countries with restrictions onUHF power output.

The new U-Link Rx and TRx radios represent a robust and cost-effective solution that can efficiently supportthe most critical GNSS applications. With its small and lightweight rugged transmitter hardware, whichrequires lower power consumption and thus smaller batteries, this radio solution is easy to carry and install.

Cost-effective UHF Radio Solution

Features:

n High-sensitivity radios

n Low power consumption

n IP65 aluminum casing

n Repeater mode

U-Link Radios Technical Specifications

Ashtech follows a policy of continuous product improvement; specifications and descriptions are thus subject to change without notice. Please contact Ashtech for the latest product information.© 2010 Ashtech. All rights reserved. The Ashtech logo, U-Link, ProMark and ProFlex are trademarks of Ashtech LLC. All other product and brand names are trademarks or registered trademarks of their respective holders. Rev (December 09)

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In Singapore +65 9838 4229 n Fax +65 6777 9881In China +86 10 5802 5174 n Fax +86 10 5802 5135 Email surveysalesapac@ashtech.comwww.ashtech.com

U-Link Rx n Frequency range : 410 to 470 MHz, with factory adjustment of input filter in ±2.5 MHzsteps

n Sensitivity: -114 dBm at 10-5 BER n Channel spacing: 12.5 kHz n RF link speed: 4800 / 7600 / 9600 bps n Modulation: GMSK n Two protocols: DSNP or Transparent n Serial link speed: 38400 bps n Serial link: RS232

Configuration Tooln Proprietary radio configuration software used to set channels- Up to 16 channels saved in the radio

Power Characteristicsn DC input voltage: 5,5 to 9V n Power consumption: <700 mW

Physical Characteristicsn Size: 76x65x20 mm n Weight: 50 grams

Environmental Characteristicsn Full performance over -20°C to +55°C n Extended temperature range over -30°C to +70°C

n CE , FCC and IC marked n EN300-113 certified

U-Link TRx n Frequency range: 410 to 470 MHz, with factory adjustment of input filter in ±2.5 MHzsteps

n Channel spacing: 12.5 kHzn RF link speed: 4800 / 7600 / 9600 bps n Modulation: GMSK n Two protocols: DSNP or Transparentn Two operating modes (specified on order entry):- Transmitter (connected to a base receiver)- Repeater (used as a standalone unit to extend the radio range)

n Serial link speed: 38400 bpsn Serial link: RS422/RS232 (RS422 by default)

n Adjacent channel power: >60dBcn RF connector: TNC n 2 transmitter status LEDs (Type of RS connection, data transfer, repeater mode)

Configuration Tooln Proprietary radio configuration software used to set channels and output power

- Up to 16 channels saved in the radio- Radio output power : 0.5W / 2W or 4W

Power Characteristicsn DC input voltage: 9 to 28Vn Power consumption: 1.5A/12V at 4W RF

Physical Characteristicsn Size: 150x105x48 mmn Weight: 660 grams

Environmental Characteristicsn IP65n Full performance over -20°C to +55°Cn Extended temperature range over -30°C to+55°C

n CE , FCC and IC markedn EN300-113 certifiedn Shock: ETS300019 – 0107n Vibrations: MIL-STD 810F