The KPA 1052 Power Amplifier is all solid-state. The PA mounts in a horizontal orientation, and can be mounted up to 50 feet away from the Antenna Coupler. It can be mounted outside the aircraft pressure vessel for operation at any altitude up to 55,000 feet and shock mounts are not required. The KPA 1052 amplifies the signal from the KRX 1053 Receiver/Exciter into a 200 watt peak envelope power (PEP) transmitted signal in single sideband operation or 50 watts of carrier power in AM operation. After filtering, the amplified signal is fed to the KAC 1052 antenna coupler. In the receive mode, the signal is passed through the KPA 1052 to the KRX 1053 receiver.