priyom.org

E23

Enigma ID E23

Name Swedish Rhapsody
Frequencies 4832, 5340, 5748, 6200, 6507, 7250, 8188
Status Inactive
Voice Female, automated, with American accent (the same as E05)
Emission mode USB, AM
Location Poland
Activity pages

Download audio sample

Known counterpart stations M04

Last heard on January 4, 2007.[1]

Format:

Preamble Message #1 Message #2 Message #3 Outro
00000
11111
22222
33333
44444
55555
66666
77777
88888
99999
87999 87999
57880 57880
65902 65902
87999
87999
15703 15703
06067 06067
...
52663 52663
57880
57880
54009 54009
90618 90618
...
16274 16274
65902
65902
95108 95108
41089 41089
...
09096 09096
End
  Three 5-figure message headers First header, spoken like all the other groups Fixed-length message of 100 5-figure paired groups Second header, spoken like all the other groups Fixed-length message of 100 5-figure paired groups Third header, spoken like all the other groups Fixed-length message of 50 5-figure paired groups  
Repeated thrice Repeated thrice              

Full transmissions always took roughly 43 minutes. If the declassified documents about E23's predecessor G02 apply to E23, then the three messages were addressed to up to three different recipients, and if the first or second message was longer than 100 groups, then it would extend into the next one.

History

E23 started on April 20, 1998, replacing G02. The usage of the E05 voice can be explained by strong alliance between the American and Polish intelligence services. E23's operation habits remained the same throughout its entire lifetime.

E23 ran on the following schedule.[2] Up until December 2000, counting of the weeks started on the first Saturday of the month, then it changed to the first Monday of the month. Note that the start times were not rigid, and E23 could have started as early as :47.

Monday, Wednesday, Thursday
Week 07:57 09:57 11:57 12:57
1st   6507 8188 5340
2nd See M04
3rd 4832 6200 8188 6507
4th 5340 8188 7250  

References

  1. ENIGMA 2000 Newsletter #40 (January 2007) - can be downloaded here
  2. Numbers & Oddities #32 (December 2000) [accessed September 13th, 2014]

Recording courtesy of Simon Mason

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