The C/TT-520 from L3Harris Technologies is a Satellite Transponder with Input Voltage 3.3 V / 22 to 36 VDC, Mass 2.95 kg w/o diplexer, 4.08 Kg (with diplexer), Noise Figure 2.5 to 3.5 dB (EOL), Dynamic Range -137 to -17 dBm, Vibration 18.4 Grms (3 Axis). More details for C/TT-520 can be seen below.