Universal HF Drive Unit MA-79G

Racal Engineering / Instruments / Electronics Ltd., Bracknell

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  • Year
  • 1960 ??
  • Category
  • Commercial Transmitter (TX not Transceiver)
  • Radiomuseum.org ID
  • 109048

 Technical Specifications

  • Wave bands
  • Short Wave (SW only)
  • Power type and voltage
  • Alternating Current supply (AC) / 100-125; 200-250 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Universal HF Drive Unit MA-79G - Racal Engineering /
  • Shape
  • Rack
  • Dimensions (WHD)
  • 483 x 277 x 540 mm / 19 x 10.9 x 21.3 inch
  • Notes
  • Driver unit, acts as transmitter but provides output RF power of only 100 mW to drive a linear amplifier.
    Coverage 1,5 - 30 MHz, AM (A3), CW (A1), SSB (A3a, A3j), FSK (F1).
    Uses Wadley loop technology for output frequency stability, in addition 6 crystal controlled channels or an external VFO can be used.
    Matching accessories:
    MA-143B: six channel crystal controlled oscilator
    MA-350B: Decade Generator
    MA-141: HF distortion indicator / meter
    MA-144 Antenna tuning unit
    MA-152: SWR meter
    MA-175: ISB modulator, 300 - 3500 Hz audio response
    MA-202: ISB modulator, 300 - 6000 Hz audio response;
    matching transmitters are TA-127, TA-349 or TA-184
  • Net weight (2.2 lb = 1 kg)
  • 27.2 kg / 59 lb 14.6 oz (59.912 lb)
  • Literature/Schematics (1)
  • Racal Handbook, Rinus Jansen
  • Author
  • Model page created by Martin Bösch. See "Data change" for further contributors.

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