AN/ARC-161 HF Airborne Transceiver
The AN/ARC-161 HF Airborne Transceiver is an airborne multi-mode voice and data communications supporting HF air-to-air, air-to-ground and ground-to-air communications links, both line-of-sight (LOS) and beyond-line-of-sight (BLOS), with secure modes.
Two half duplex, single side band ARC-161 HF receiver/transmitters are installed in the P-3C aircraft. These radios are identical and capable of transmitting in the range of 2 to 30 MHz. Both HF control boxes are mounted at the NAV/COM station. Operations of the two radio sets are independent of each other. However, an interlock automatically grounds the unused radio when a mike is keyed on either HF. Both are capable of plain voice, cipher voice, teletype, and data link. An antenna coupler is used between the transmitter and antenna to provide an impedance match. During transmission, the coupler automatically matches the antenna impedance to the selected frequency. The antenna need not be coupled for reception.
The AN/ARC-161 HF Airborne Transceiver is being manufactured by RCA.
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