[Milsurplus] Beginning of use of UHF aero radios

[antqradio at juno.com]

Google search turned up the following excerpt from a NRL press release
about  Howard Otto Lorenz: 

To thwart enemy jamming and eavesdropping, Lorenzen engineered a
selectable 880-channel UHF voice receiving and transmitting system. He
coordinated U.S./British UHF efforts and became well acquainted with the
men who focused on radio and radar in the British Admiralty's Signal and
Radar Establishment in Portsmouth, England, and their counterparts in the
Royal Air Force and Royal Army. (His UHF transceiver transitioned to
Raytheon, AN/URC-3, and was later mass produced as the AN/ARC-27 for use
during the Korean War by U.S. and allied
forces.)   The whole text is at:
http://www.nrl.navy.mil/pao/pressRelease.php?Y=2000&R=32-00r

This would make a channel spacing of 200 kc.  I believe the ARC-27 (100
kc channel spacing i.e. 1750 channels) was late 1940s design so this
seems to fit.  The Navy was ahead of the curve, again!
Regards,
Jim

On Sat, 18 Dec 2004 17:12:48 -0700 "Bruce Stewart" <skywarrior01 at msn.com>
writes:
> Hi All,
> Does anyone know the aprox year that UHF (225-400) was adopted for 
> military 
> aircraft?  I have seen usage of the PRC-14 at about 1950 but when 
> were UHF 
> rigs used in aircraft?
> TIA
> Bruce 
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