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Homing radio receiver - this page is a stub

HRR-18 was a homing radio receiver (HRR), or radio direction finder for the 40-45 MHz radio band, made around 1973 by an unknown manufacturer for the US Central Intelligence Agency (CIA). The receiver is probably based on an existing avionics beacon receiver, but we currently don't known which one. If your recognise the equipment shown in the image below, please contact us.

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  1. Operation and Maintenance Manual for the HRR-18 Homing Radio Receiver
    CIA. 25 January 1975.

  2. Operating Manual or Direction Finding Antenna (prototype)
    NRP/CIA. July 1977.
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Crypto Museum. Created: Sunday 26 March 2017. Last changed: Sunday, 26 March 2017 - 16:57 CET.
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