•
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 == References ==