The Honeywell KPA-1052 remote mounted high frequency power amplifier is a component of a KHF-1050 HF Radio Communications System. The KHF-1050 HF System consists of a KPA-1052 Power Amplifier, KRX-1053 Receiver/Exciter, PS-440 Control unit and the KAC-1052. The KAC-1052 receives 200W Peak Envelope Power (PEP) HF signals from the KPA-1052 Power Amplifier and feeds the power to an aircraft antenna through its impedance transformation networks. Received signals to the KRX-1053 Receiver/Exciter go through the KAC-1052 and KPA-1052 Power Amplifier.

The KPA-1052 HF Power Amplifier mounts in a horizontal orientation, and can be mounted up to 50 feet away from the KAC-1052 Antenna Coupler. The KPA-1052 can be mounted outside the aircraft pressure vessel for operation at any altitude up to 55,000 feet without requiring shock mounts. The KPA-1052 has an operating temperature range of -55°C to +70°C. The KPA-1052 is 12.657 inches in length, 1.772 inches in height, 7.244 inches in width and weighs approximately 8.4 pounds.