GNSS Products

Documents

pdf Antenna Product Overview

pdf Comparing GNSS Antenna Performance

pdf White Paper – GNSS Antennas

pdf GNSS Antenna Presentation

pdf TW3072 Timing Antenna Install

pdf4000 Series White Paper – New Challenges for GNSS Patch Antennas

pdfTallysman TW4000 Series White Paper

pdfPatch Antennas for the New GNSS (GPS World Article Feb /12)

STMicroelectronics GPS + GLONASS Simulation

Multi-constellation GNSS

TW125 Datasheet

TW125 Low Current/Low Voltage 1.2 to 1.8GHz 25dB In-line Amp

TW125 Low Current Low Voltage 1.2 to 1.8 GHz 25 dB gain In-line Amplifier

The TW125 by Tallysman Wireless is a low cost, rugged, waterproof, low noise, low current/low voltage, 1.2 to 1.8 GHz band, 25dB gain in-line amplifier, specially designed to amplify all GNSS frequency signals, from GPS L2 to GLONASS L1. The TW125 provides for much longer cable runs from antenna to receiver, for applications such as mast-mount, large vehicle and timing systems, without degradation of system sensitivity.

Its low loading allows for both the antenna and the TW125 in-line amplifier to be powered by the GNSS receiver. The TW125 passes DC supply to the antenna, therefore not requiring additional hardware such as bias-T, power cable and power supply.

Applications Features Benefits
  • All GNSS Signals – GPS, GLONASS, Galileo & SBAS
  • Commercial, Industrial and Military Telematics Systems
  • Wireless and Telecom Timing and Synchronization Applications
  • Low Current / low voltage
  • Very low noise
  • Wide input voltage 3 to 10 Volts
  • Nickel-plated brass, IP67 compliant housing
  • Powered via antenna coax from receiver
  • 50 Ohm port impedance
  • Available SMA & TNC jack connectors
  • RoHS compliant
  • Improves signal reception
  • Enables extended cable runs
  • Avoid installation of costly low-loss cable
  • Fits in-line with antenna cable
  • No external DC power supply required
  • Easy to install – mounting clamp included

Specifications

Vcc =3.3V, over full bandwidth, T=25 °C

Electrical
Nominal Gain 25 dB +4/-0 dB typ.
Pass Band Ripple +/-2 dB
Impedance 50 Ohms
Noise Figure 1.5 dB max.
Bandwidth 1.2 to 1.8 GHz
Input VSWR 1.5 typ. / 2 max.
Output VSWR 1.5 typ. / 2 max.
Reverse Isolation >35 dB
Output 1dB -10 dB
Output IP3 +5 dBm
Supply Range voltage 3 to 10 VDC Nominal
Supply Current 25 mA typ.
Mechanicals & Environmental
Mechanical Size (body dimensions only) 59 mm L x 20 mm Dia. (2.32” L x 0.787” Dia.)
Connectors SMA Jack or TNC Jack
(Max TNC connector Torque 6.1 in-lbs)
Operating Temp. Range -40 to +85 °C
Enclosure Nickel-plated brass
Environmental RoHS and IP67 compliant
Warranty One year – parts and labour
Ordering Information
TW125 – 25dB gain In-Line Amp with SMA Jack 32-0125-0
TW125 – 25dB gain In-Line Amp with TNC Jack 32-0125-1
Download TW125 Datasheet

The information provided herein is intended as a guide only and is subject to change without notice. This document is not to be regarded as a guarantee of performance. Tallysman Wireless Inc. hereby disclaims any or all warranties and liabilities of any kind. © 2010 Tallysman Wireless Inc. All rights reserved.