Here the Bedford OLB is
shown as a radio relay truck used by the Royal Signals.
The rear housed radio relay stations of the AN/TRC-family
used to transfer telephone- and teletype channels.
Radio set AN/TRC-1 was a transportable, crystal
controlled FM radio receiving and transmitting equipment
for radio relay or point-to-point communication in the
VHF band. Typically used by regimental or higher
headquarters. When operated as the terminal of of radio
relay link in a tactical communication system it provided
one-way or simultaneous two-way facilities.
With appropriate auxiliary equipment, four channels of
teletype or a single channel of facsimile could be
accommodated.
The set could be operated from a distant control point on
a two-wire or four-wire basis by means of Remote Control
Equipment AN/TRA-2.
AN/TRC-3 and AN/TRC-4 consisted of two and three TRC-1´s
respectively.
The shown set-up is probably a AN/TRC-3 station which
major components were the R-19/TRC FM radio receiver,
T-14/TRC 100 W FM radio transmitter and the AM-8/TRA-1
VHF amplifier. The station, which were a Line-Of-Sight
(LOS) station worked in the 70 - 99.9 MHz frequency
range.
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