PRC-320 HF MANPACK RADIO: THINGS I LEARNED скачать в хорошем качестве

PRC-320 HF MANPACK RADIO: THINGS I LEARNED

Welcome to an occasional series of adventures with my old, heavy and extremely capable military radio: the RT/UK PRC-320 “Clansman” Manpack HF Transceiver, built for the British Army, and dating from sometime in the early 80’s. So I guess this is a Vintage Radio channel, with a twist: You won’t see a lot of tear-downs or hacks or feature run-throughs, though I will link to others in the Military Radio fraternity that cover the ‘320 from workbench to beachhead. My focus is day-to-day OPS in the field in all sorts of weather, and in as many locales as I can manage without breaking my back (I will mention “heavy” several times in this series). Short History of the PRC-320 https://www.radiomuseum.org/r/plessey... PRC-320 User Group https://prc-320.groups.io/g/main/topics A PRC-320 User Review https://www.delta-alfa.com/prc-320/ Some background: The PRC-320 was part of a system of man-portable HF/SSB radios spec’ed for British Army combat anywhere in the world. It was used by long-range patrols and Special Forces and was renowned for its durability and flexibility. The full deployment includes the transceiver, battery pack, headset + PTT and/or handset, morse key, solar shield, 4-element counterpoise, dipole and long-wire antennas, a 2.4m whip antenna, and a pack frame into which the radio is bolted for the operator to carry. It’s all stuffed into a large Bergen-type bag. The whole shebang is about 21 Kgs. The radio works in CW(wide or narrow)/AM/SSB(USB; LSB optional) from 2 MHz to 30 MHz down to 100 Hz increments through decade-switches, for a choice of 280,000 frequencies. You won’t enjoy a free-wheeling VFO knob experience; your fingers will feel the love as you hunt for POTA on those icy Winter outings. RF power output is either 3 or 30 watts, fed by rechargeable 1.0 or 3.3 Ah 24-volt Ni/Cad batteries. They are brutes that clip to the base of the unit. Operators could stay in a forward position without returning to base for a recharge, since the PRC-320 can use an accessory hand generator with a 1.0 Ah battery. So there’s a lot of cranking. Oddly—or tactically—transmit power is reduced by 1/2 in the High power setting after a few seconds, perhaps to establish contact with another operator, then force them to listen harder, or to confuse enemy combatants looking for RF signatures. Most likely scenario: it saves battery. The tuning section sets this radio apart. It accommodates long wires and whip antennas by electrically matching antenna length to the frequency in use. It’s not automatic. There is a handy reference chart mounted to the chassis with frequencies and lengths and coded tuner settings, making it dead-easy for operators to get the rig up without having to remember antenna math. The small CW key accessory wraps to the knee or arm. Like every component of the Clansman system, it’s a robust, combat-ready piece. You’ll see this in action once I get up to 20 WPM. Someday. The Clansman system was deployed throughout the world, and saw early action in Zimbabwe and the Falkland Islands war. The British Army migrated to other platforms over the years, while the PRC-320 served in the UK's Cadet Forces training until about 2015. You can buy these amazing radios and accessories on the used market, and there are dedicated user groups built around this solid piece of military ware.