32-0125B-03

TW125B Low Current / Low Voltage 1.1 to 1.7 GHz 27 dB gain In-line Amplifier The TW125B is a low cost, rugged, waterproof, low noise, low current/low voltage, 1.1 to 1.7 GHz band, 27dB gain inline amplifier, specially designed to amplify all GNSS frequency signals, from GPS L5 to GLONASS G1. The TW125B provides for much longer cable runs from antenna to receiver, for applications such as mastmount, large vehicle and timing systems, without degradation of system sensitivity. Its low loading allows for both the antenna and the TW125B in-line amplifier to be powered by the GNSS receiver. The TW125B passes DC supply to the antenna, therefore not requiring additional hardware such as bias-T, power cable and power supply. TW125B Dimensions (mm) IMPORTANT: Amplifiers are directional and must be installed in the orientation indicated on the product label. (Arrow points away from antenna) Applications • All GNSS Signals – GPS, GLONASS, Galileo, BeiDou & SBAS • Commercial, Industrial and Military Telematics Systems • Wireless and Telecom Timing and Synchronization Applications Features Benefits • • • • • • • • • • • Low Current / low voltage Very low noise Wide input voltage 3 to 16 Volts Nickel-plated brass, IP67 compliant housing Powered via antenna coax from receiver 50 Ohm port impedance Available SMA, TNC, and N-Type jack connectors RoHS and REACH 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 TW125B Low Current / Low Voltage 1.1 to 1.7 GHz 27dB gain In-line Amplifier Specifications Vcc =3.3V, over full bandwidth, T=25 °C Electrical • • • • • • • • • • • • • Nominal Gain Pass Band Ripple Impedance Noise Figure Bandwidth Input VSWR Output VSWR Reverse Isolation Output P1dB Group Delay (w/o cable) Output IP3 Supply Range voltage Supply Current 27 dB +.1/-.2 dB typ. +/-0.5 dB 50 Ohms 2 dB typ. 1.1 to 1.7 GHz 1.3:1 typ.. 1.3:1 typ. >35 dB +9dB min