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Bedford OLB, 4 x 2, 12V (Rear view, left side)


  Rear view, left side

Picture courtesy of Royal Signals Historical Collection, Fredericia


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-1s 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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