A new maritime multifrequency radio beacon built around a special output circuit is 50 per cent more efficient than conventional circuits. The system is being launched by England's Redifon Telecommunications Ltd., the world's largest supplier of radio beacons. The key is the first use of a push-pull class D amplifier for a unit with a 125-watt power-output rating. The increased efficiency means low power consumption and a four-to-one reduction in internal thermal dissipation. There's no need for cooling fans because the output transistors operate at low temperatures. The circuit also handles mismatched loads caused by a faulty antenna. The approximately $4,000 solid-state BK125M beacon is to guide coastal ships and direct helicopters onto oil rigs in bad weather.

  • Corporate Authors:

    Transportation Development Agency Centre

    800 rene-Leveque Boulevard West, Suite 600
    Montreal, Quebec H3B 1X9,   Canada 
  • Publication Date: 1976

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Filing Info

  • Accession Number: 00142623
  • Record Type: Publication
  • Source Agency: Transportation Development Agency Centre
  • Files: TRIS
  • Created Date: Dec 15 1976 12:00AM