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.[1]

Wireless Set No. 62

Technical specifications
  • AM, Superheterodyne radio transceiver.
  • Frequency coverage: 1.6 - 4.00 MHz, and 4.0 – 10.0 MHz in two switched ranges.[2]
  • Receiver sensitivity (20 dB signal-to-noise ratio when modulated 30% at 400 cycles): 1.6 - 4.00 MHz, better than 3 μV; 4.0 - 10.00 MHz, better than 6 μV.[2]
  • Intermediate frequency: 460 KHz [2]
  • Receiver Audio output: 200 mW at 1 KHz [2]
  • Transmitter RF output: 1 W
  • Circuitry: 11 valves[2]
  • 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.[2]
  • 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

References
  1. "Duxford Radio Society: Restoration: WS 62". Archived from the original on 2018-08-21. Retrieved 2018-08-05.
  2. "Equipment History File - Wireless Set No. 62 (British Army 1945)" (PDF). Retrieved 2023-10-05.
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