PRC-351
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Clansman
TRANSCEIVERS |
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25w Surf |
25w Turf |
DMU |
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This is the Clansman VRC-351
Back-Pack Radio. It is a 4 Watt portable VHF (FM) Radio, made by RACAL BCC Ltd.
in
Frequency Range 30 to 76.000 MHz in 25 Khz
steps giving a total of 1841 programmable channels. The desired frequency is
set by four knobs on the side of the radio which can be operated even while the
operator is wearing Arctic mittens, or in the dark by counting clicks from the
end-stops.
Intermediate Freq 11.525 MHz,
Frequency Stability 5 ppm per year. Voice F3E Narrow
with +/- 5 Khz deviation,
Telegraph F2, 75 Baud.
A Whisper mode is provided for use when quiet conditions are essential. In this
mode the receiver's audio output volume is reduced and the microphone
sensitivity is increased. A Loud mode is also provided for operation in noisy
environments as well as a Noise-On switch position which allows the radio to
operate with the squelch in the off mode.
Local Squelch facility by either 150 Hz tone modulation of radiated signal, or
by 160 Hz superimposed on receive signal. Auto-Rebroadcast operates on 150Hz
Modulated receive signal.
Output power of the radio is 4 Watts into a 50 Ohm load and the transmitting
range is up to 10 Km when used with 1.2 meter standard whip antenna in open
country side, and up to 20 Km when used with a vehicle antenna. The radio can
be capable of transmitting to much greater distances by adding an external clip
on 20 Watt RF amplifier. In this configuration the
radio would effectively become a Clansman PRC-352 which is available elsewhere
on this website.
If more than one radio set is used in close proximately a Selective Unit RF 4 Watt "SURF" should be installed on top of
the PRC-351 radio. The SURF prevents one radio interfering with the other
radio. The SURF is then tuned to give optimum performance and achieve maximum
range with the radio set.
The radio is powered by a standard Clansman 24 Volt battery pack. The battery
clips on to the bottom of the radio. The radio can also be powered / recharged
with a Hand Generator which clips on between the radio and the battery. It can
also be powered externally from Vehicle power supply or a 24
