Inhaltsverzeichnis
Radio Receiver & Transmitter BC-322
Technical data
- Principle: transceiver, manpack
- Frequency range: VHF 52 - 66 MHz
- Frequency memory: none
- Sensitivity AM approx. 10 μV
- Transmission power: 100 mW
Power supply
- Rechargeable battery / battery operation: Heater and anode battery BA-32 (heater voltage 3 V, anode voltage 144 V, grid voltage 13.5 V, microphone voltage 4.5 V).
Dimensions
- 140 x 200 x 220 mm
Accessories
- Handset TS-11-E (resp. TS-11-(*))
- Antenna AN-30-B
- Battery BA-32
- Canvas bag BG-71
- Chest CH-33 with spare parts and accessories for vehicle operation
- Vehicle antenna material Mast Base MP-22, Mast Section MS-50 and MS-51
Operation
The BC-322 / SCR-195 is a very early compact small infantry radio, which was developed by the U.S. Army Signal Corps around 1938. The AM transceiver operates in the VHF band and has a VFO tunable from 52 to 66 MHz.
For portable operation, the radio was carried in a canvas bag, the antenna was screwed to the antenna base on top of the set, the matching BA-32 battery was attached to the bottom of the radio with two straps, and the TS-11-A handset was usually used with the set.
The BC-222 / SCR-194 with a very similar design transmits in the 28 - 52 MHz range and was used by the artillery, usually with a T-24 microphone and HS-22 headphones.
Technical principle
In transmit mode, the VT-67 works as a Hartley oscillator, the VT-33 as a modulator tube. In receive mode, the VT-67 works as a receive detector in a super regenerative circuit (audion) and the VT-33 as an audio amplifier tube.
Components
Technical documentation
Development
The set was developed at the Signal Corps Laboratories, Fort Monmouth and built by various companies as contractors.
It was used for communication within an infantry regiment.