URC-10 VHF/FM handheld survival radio

mass: about 0.9 kg

range: about 1.6 km

channels: 6?

introduced to Vietnam: ???

availability: used by SF/LRRP units

AN/PRC-9 AM handheld survival radio

mass: about 0.75 kg

range: ??? fairly long

channels: AM voice or beacon

introduced to Vietnam: ???

availability: issued to fixed wing and helicopter pilots

HT-2 handheld tactical radio

mass: about 1 kg

range: ???

channels: 1?

introduced to Vietnam: ???

availability: supplied to guerrillas and other "spook" units

AN/PRT-4 handheld tactical radio

mass: about 1 kg

range: 1600 m channel 1, 500 m channel 2

channels: 2

introduced to Vietnam: ???

availability: in limited service with 4th ID & 9th ID

AN/PRR-9 helmet mounted radio receiver

mass: ???

range: 1600 m channel 1, 500 m channel 2

channels: 2

introduced to Vietnam: ???

availability: in limited service with 4th ID & 9th ID

AN/PRC-6 "walkie-talkie"

mass: ??? too much

range: 1.6 km

channels: ???

introduced to Vietnam: Korean War vintage item

availability: mostly in service with American allies

AN/PRC-10 VHF/FM backpack radio

mass: 12 kg

range: 5-8 km normal

channels: 170

introduced to Vietnam: Korean War vintage item

availability: in use by USMC

AN/PRC-25 VHF/FM backpack radio

mass: 11.4 kg

range: 8 km normal, 19-24 km on high ground

channels: 920

introduced to Vietnam: ???

availability: standard US Army issue

AN/PRC-74 HF/SSB backpack tactical radio

mass: 6.5 kg

range: 12km normal

channels: 16,000 at 1kHz intervals

introduced to Vietnam: 1966

availability: limited service in special units

AN/PRC-74B HF/SSB backpack tactical radio

mass: 12.7 kg

range: 15km whip, 30km expedient, 500km full ground antenna

channels: 16,000 at 1kHz intervals

introduced to Vietnam: 1967

availability: limited service with Special Forces units

AN/PRC-77 VHF/FM manpack tactical radio

mass: 7.6 kg

range: 8km normal

channels: 920 at 50 kHz intervals

introduced to Vietnam: 1968?

availability: limited introductory service with Pathfinders, SF, etc.

OTHER NEAT GADGETS

AN/PVS-2 individual weapon night vision sight

mass: 1.8 kg

range: 300m starlight, 400m moonlight

introduced to Vietnam: 1965

availability: limited

72 hours of power from 6.75V mercury cell

requires up to 20 minutes to recover from flares

AN/TVS-2 crew served weapon night vision sight

mass: 7.3 kg

range: 600m infantry, 1000m vehicles

introduced to Vietnam: 1965

availability: limited

72 hours of power from 6.75V mercury cell

requires up to 20 minutes to recover from flares

SDU-5/E strobe light

mass: 0.1? kg

range: visible up to 10 km at night

introduced to Vietnam: ???

availability: common

24 hours of power from a 5.2V mercury battery