Wireless Set No. 62



The Wireless Set No. 62 was a British Army HF band radio transceiver. Introduced by Pye during the later part of World War II as a light-weight and waterproof replacement for the Wireless Set No. 22. Although intended as an interim design, it remained in production until 1966.

Technical specifications

 * AM, Superheterodyne radio transceiver.
 * Frequency coverage: 1.6 to 4.00 MHz and 4.0 to 10.0 MHz in two switched ranges.
 * Receiver sensitivity (20 dB signal-to-noise ratio when modulated 30% at 400 cycles): 1.6 to 4.00 MHz, better than 3 μV; 4.0 to 10.00 MHz, better than 6 μV.
 * Intermediate frequency: 460 kHz
 * Receiver Audio output: 200 MW at 1 kHz
 * Transmitter RF output: 1 W
 * Circuitry: 11 valves
 * Weight: WS62 transceiver unit (excluding accessories) - 13.7 kg
 * Dimensions: 515 x 260 x 324 mm
 * Power Supply: 12 V DC at 3.0 to 5.0 Amps from external batteries, powering an internal rotary transformer (motor-generator). Later models used a transistorized inverter power supply.
 * Antenna Systems:
 * Mobile station: vertical rod aerials 4 ft, 8 ft or 14 ft high
 * Fixed station: vertical ground mounted 32 ft mast
 * Fixed station: horizontal 100 ft long end-fed wire (adjustable)
 * Used Crystal Calibrator No. 10 as an external frequency reference