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Re: Nightfighter radar
Hello
According to Fritz Trenkle in "Bordfunkgeräte - Vom Funksender zum Bordradar" and "Die deutschen Funkmeßverfahren bis 1945", the first request from the RLM to the industry was issued in February 1940. External antennas were prohibited, but the first tests of what will become the Liechtenstein with the "forbidden" external antennas occured in April 1940, on a He 111.
Regards
Jean Schreiber
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