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This is the place to discuss general issues related to the U-boat war or the war at sea in WWII. 
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RE: Radio Procedures
Posted by: Roy Prince ()
Date: January 11, 2001 04:56AM

<HTML>Hi Werner, I understand the transmitters had about 100W input. The only antenna they could use was the horizontal one running fore and aft and visible in most pictures of uboats. The shore stations transmitted at regular times on all frequencies in use to enable the uboat operator find which frequency was suitable for his location at that time. Short Wave conditions were pretty good during the war and on a merchant ship (not a uboat!) any frequency between 8 and 12 mhz would span each side of the Atlantic with ease. As a matter of interest I was told many years ago that someone either got their hand on a Telefunken transmitter from a German ship, or made one to the same specifications and it was installed on a destroyer. Using a similar length antenna to a uboat and transmitting on the low frequencies (around 400 khz) would from time to time transmit \'homing\' signals similar to the uboat signal in the hope of luring a uboat to answer which gave the destroyer the chance of getting a radio bearing. They even sprayed the antenna insulators with salt water to resemble that of a uboat having just surfaced..
Roy Prince
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Subject Written By Posted
Radio Procedures Jay 01/09/2001 11:42PM
RE: Radio Procedures Werner Frank 01/10/2001 02:19AM
RE: Radio Procedures Roy Prince 01/11/2001 04:56AM
RE: Radio Procedures Rainer Bruns 01/11/2001 03:12PM
RE: Radio Procedures Roy Prince 01/11/2001 11:53PM
RE: Radio Procedures Rainer Bruns 01/12/2001 03:21AM
RE: Radio Procedures Ken Dunn 01/11/2001 01:29PM


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