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Re: directional radio antennas
Posted by: Roy Prince ()
Date: September 29, 2002 11:54PM

Hi Kurt, Directional antennas on hf (4mhz -24mhz) are cumbersom even nowadays and in any case they produce a broad beam and cannot be compared to the microwave sharp beam in Radar. An hf directional antenna still produces significant radiation off the sides of it path which can be received in most cases. In any case a uboat transmitting to it's base in France would still put a good signal into a D/F receiver in England and Gibraltar where a couple of the receivers were. Best wishes, Roy

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Subject Written By Posted
directional radio antennas kurt 09/25/2002 03:18PM
Re: directional radio antennas Roy Prince 09/29/2002 11:54PM
Re: directional radio antennas Werner Frank 10/08/2002 11:52PM
Re: directional radio antennas Werner Frank 10/11/2002 01:27AM


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