5. The Interférences Article

Translation of the article published in Interférences, Issue No 3, Autumn 1975.
Original French text shown below is reproduced from the website of Priyom



Espionage and Radio

Much of the shortwave radio spectrum is occupied by the messages of all of the world's secret services. Morse code, voice, teletype, all procedures are used. Anyone with a suitable shortwave radio can hear a female voice in the 47m (6400Khz) band listing endless series of numbers in German, sometimes preceded by a “DST21 or DST37” code.

These are broadcasts of an information service of the GDR, the "Hauptvervaltung Aufklarung" which is an annex of the MFS, spy service of the GDR.

With each transmission, five to fifteen agents are alerted and receive their instructions. Since 1960, Latin American airwaves have also been invaded by strange stations which radio amateurs call "number stations" and which also broadcast five-digit combinations followed by a musical code (Besame mucho) or in Morse code. Organizations close to the CIA claim that these were messages sent by Cuba to its diplomats and secret agents. Information not confirmed: a station broadcasts Tyrolean music on 6425 Khz between 11:30 hours and 11:40 hours. It would be an SDECE station located in Chartres and Tyrolean music represents the key to a message. This is possible because the spying technicians use a means of transmission called “brief transmission”. The Morse broadcast is recorded at 4.5 rpm and broadcasts at 38 rpm. Several minutes pass in a few seconds and the uninformed listener hears the message as a brief noise. The noisecan be integrated into a regular program, this is what the British secret service did with the BBC, according to the Kremlin accusations launched in April 1969. It seems in fact that all the secret services employ this kind of fast and discreet transmission. Private American and Japanese companies do the same. GMT times and frequencies for curious radio amateurs.  East German Espionage: 3200, 3825, 5830, 6400, 6415 Khz. All day, especially around 11:30 hours.
SDECE? 6425 Khz 11.30 - 18.30
CUBA? 3000- 4000 Khz and 5000-8000 Khz between 4 and 5h.

B.C.


3 comments:

  1. I's say it's French because the cryptic phrases ("my hen laid an egg" etc.) were a French thing going back to the Resistance. The GDR stations were just number sequences.

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  2. Do you think G20 was run by the same people behind G01/Tyrolean? The announcers sound similar to each other.

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    1. I and others have also noted the similarity of the accents. See the page "Analysis of Evidence" at the paragraph headed "Possible Connection to the "Spruchnummer" Station"

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