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Clansman RT-352 / PRC-352 20 Watt VHF Man-Pack Transceiver
This is the Clansman RT-352 / VRC-352 Back-Pack Radio that was mainly used by the Royal Marines. The radio is basically a Clansman RT-351 / PRC-351 with the addition of a 20 Watt Amplifier.
The PRC-352 is a 20 Watt portable VHF (FM) Radio using a clip on external RF amplifier, made by RACAL BCC Ltd. in England. The PRC-352 has been designed to provide command communications at battalion and company level for dismounted troops. It was also used in vehicles by mounted troops.
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 20 Watts into a 50 Ohm load using the RF amplifier. The amplifier can not be used on high power transmit using the radios normal whip antenna and instead a Ground-Spike Antenna is used. The amplifier can only be used on high power as a fixed radio station or in a vehicle using the vehicles antenna system. For mobile man-pack operations the battle antenna is fitted and the radio is operated on low power bypassing the amplifier as a PRC-351.
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-352 radio and used on low power. 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 Volt DC Power Supply such as the UK-AC1-2870 14/28 Volt AC Adaptor, connected to the radio with a modified battery extension lead.
The PRC-352 is a 20 Watt portable VHF (FM) Radio using a clip on external RF amplifier, made by RACAL BCC Ltd. in England. The PRC-352 has been designed to provide command communications at battalion and company level for dismounted troops. It was also used in vehicles by mounted troops.
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 20 Watts into a 50 Ohm load using the RF amplifier. The amplifier can not be used on high power transmit using the radios normal whip antenna and instead a Ground-Spike Antenna is used. The amplifier can only be used on high power as a fixed radio station or in a vehicle using the vehicles antenna system. For mobile man-pack operations the battle antenna is fitted and the radio is operated on low power bypassing the amplifier as a PRC-351.
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-352 radio and used on low power. 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 Volt DC Power Supply such as the UK-AC1-2870 14/28 Volt AC Adaptor, connected to the radio with a modified battery extension lead.