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

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

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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




The TW125 provides for much longer cable runs from antenna to receiver, for applications such as mastmount, large vehicle and timing systems, without degradation of system


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.


  • 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

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