Check the listing for details. CPI 400 Watt Ku-Band TWTA Amplifier CMPA (Compact Medium Power Amplifier). Condition: Used. Listed at 8500.00 USD. CPI 400 Watt Ku CMPA (Compact Medium Power Amplifier). Model VZU-694AD. Frequency: 13.75-14.5GHzGain: 73dB Units are used but have been functionally tested. Test photos in listing are from 1st unit, tests from other units will be provided upon request. Buyer may select which unit they wish to purchase. Spectrum plot is a bandpass sweep to show gain variation across band. All amplifiers meet spec. $250 flat packing and shipping fee. No shipping outside US. Free local pickup available if desired. Specifics for each unit are listed below. Please note minor display issue noted with unit 1. CMPA 1 Model VZU-694AD, SN B22034E5 Beam Hours: 60k Hrs Heater Hours: 61k Hrs Helix voltage: 8.92 kV Helix Current: 0.3 mA Known Issue: Some display segments are dim. Still readable. CMPA 2 Model VZU-694AD, SN B22033E5 Beam Hours: 60k Hrs Heater Hours: 60k Hrs Helix voltage: 8.93 kV Helix Current: 0.5 mA CMPA 3 Model VZU-694AD, SN SB1667B3 Beam Hours: 80k Hrs Heater Hours: 81k Hrs Helix voltage: 8.80 kV Helix Current: 0.8 mA CMPA 4 Model VZU-694AD, SN SB1678B3 Beam Hours: 90k Hrs Heater Hours: 91k Hrs Helix voltage: 8.86 kV Helix Current: 1.1 mA