GRR-24

GRR-24 Radio Receiver Set - A UHF Single Channel Radio Receiver set built by ITT Aerospace for air-ground communications. Put in place at USAF and RCAF heavy radar sites in the mid 1970s to replace similar radios that used vacuum tube technology. One component of the USAF Rivet Switch program. GRR-24 Radio Receiver GRR-24 Radio Receiver Element Value Notes Nomenclature GRR-24 Origins Variants Manufacturer ITT Aerospace Introduced 1970s Number Made Type Single Channel Ground to Air Radio Receiver IEEE Band UHF Frequency 225-399.975 Number of Channels 7,000 Channel Spacing 50 or 25 Khz Primary Power 105-210, 120/250 Vac, 47-420 Hz 22-30 Vdc MTBF 20,000 Hours MTTR 15 Min See Also: US Radio Sets Sources: Winkler, David F., Searching the Skies: the Legacy of the United States Cold War Defense Radar Program, USAF Hq Air Combat Command, 1997, 192 pages, Pdf MIL-HDBK-162A, 15 Dec 1965. Links: