The QSLA-3700-4200-60-50 from Qualwave is a SATCOM Amplifier System with Frequency 3.7 to 4.2 GHz, P1dB 10 dBm, Small Signal Gain 60 dB, DC Voltage 12 to 18 V. Tags: Module with Connectors, Low Noise Amplifier. More details for QSLA-3700-4200-60-50 can be seen below.