| G14 |
| STATUS- INACTIVE |
| A declassified Polish document reveals details of DFC37 and DFD21. NEW |
| DFC 37 Pre 1988
DFC 37 After 1988 DFD 21 Pre 1988 DFD 21 After1988 DFD 21 with unusual transmission 18 OCT 89 courtesy Peter H (Germany). DFD 21 in 18 OCT 89. The tones generator gets mixed up with a test count courtesy Peter H (Germany) DFC37 and DFD21 recorded sometime in the 1970s with the flute melody in place of the later musical scale. Many thanks to Jochen in Germany for these fine recordings. DFC 37 1970s DFD 21 1970s |
It's heavy going for some agent who has to copy this DFD 21 message wma poor quality. courtesy Gary in Wales. |
| Medley of DFC37/DFD21 transmissions 1970s - 1990s From Jochen S. |
DFC 37 message wma The full transmission! Well, as the man said - they ain't making 'em anymore. courtesy Gary in Wales. |
| DFD21 BND from Leen in NL. via spook007 |
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These stations are on two frequencies - 3370 for DFC37 and 4010 for DFD21. They are, to all intents and purposes, the same station. However, as will be shown, the history of these stations goes back to at least the early 1970's, as does that of Papa November. The interval signal in those days was a complete musical scale of ten descending notes, after which a woman said "Hier ist DFC37" or "Hier ist DFD21". When they were converted to auto-voice in 1988 the interval signal was changed to electronic tones followed by a woman with "Delta Foxtrot Charlie Drei Sieben" or "Delta Foxtrot Delta Zwo Eins." Schedule: DFC37: 3370 - 1500-2200 DFD21: 4010 - 1500-2200 Messages begin on the hour in the AM mode and are repeated on the half hour in single sideband. The stations have their own addressees unique to them and not used by Papa November or the other two letter stations. Here is a typical day's broadcast: DFC37 DFD21 1500-036 236 450 A 1500-698 154 C As noted, broadcasts are repeated in upper sideband on the half hour. I have added the letters A, B, C and D to indicate identical messages, that is, message "A" on DFC37 at 1500 is the same as on DFD21 at 2100, etc. You can see that they really are the same station and that, on any particular day, there are four opportunities in the AM mode and four in USB for addressees to receive their traffic. As with Papa November, DFC37 and DFD21 have unique three figure identifiers. These are: Because DFC37 and DFD21 have seemingly legal callsigns you would expect them to appear in such utility station lists as the Guide to Utility Stations by Joerg Klingenfuss and the Confidential Frequency List compiled by Geoffrey Halligay. And, indeed, they do! You might think that this is a breakthrough - two numbers stations listed in these publications, with the operator's identity exposed and transmitter locations listed. Unfortunately, the inclusion of these stations does nothing to explain the mysteries. Indeed, the opposite is true. Their inclusion only adds to the intrigue. Take the Klingenfuss Guide first. According to this book DFC37 and DFD21 are operated by the Deutsche Bundespost (the German Post Office). Fair enough. Far-fetched though the idea may be, let's suppose that a company as technically advanced as the German Post Office has a use for a station sending numbers - the telecommunications equivalent of talking drums or smoke signals. We already know that Papa November and the other two letter stations are part of the same organisation as DFC37 and DFD21. Here is the proof: " Since several decades nobody has ever succeeded in the exact location and purpose of these stations. Nobody has ever been able to contact such a station or to get a verification for reception, etc. All what especially those SWLs from America, etc. write and state about these stations are presumptions, guesses and nonsense. From our point of view, monitoring these stations is a waste of time and you get more from reading Bracknell Meteo's Teleprinter coded weather during 24 hours than from monitoring these number stations' for 24 seconds. Consequently, we cannot answer your questions because Klingenfuss Publications considers to give facts and not guesses."
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