Enigma ID M02

Frequencies 4025, 4054, 4573, 4643, 4882, 4945, 5738, 5880, 6770, 6850, 6995, 7650, 8180, 8623, 9120, 9131, 9268
Status Inactive
Voice N/A
Emission mode ICW, MCW
Location Austria
Activity pages

Known counterpart stations E12, G12, V12, V18

M02 was ran by Austrian Army Intelligence Office (HNA). Morse code counterpart to E12, G12, V12 and V18. Last heard on 30 October 1997.


Preamble Message Repeat Outro
723 GR20 15313 15313 28645 28645 ... AR GR20 15313 15313 28645 28645 ... AR
3-figure ID Amount of 5-figure groups in the message 5-figure paired groups   Amount of 5-figure groups in the message 5-figure paired groups  
Repeated for 5 minutes            

Operation habits

M02 sent many transmissions a day, on frequencies also including those used by its voice counterparts. The speed was 25 WPM, and the standard zero was used - five dashes. Distinct feature of M02 were strong key clicks, noted to be 30 kHz wide. Unlike M02's voice counterparts, M02 started its transmissions with a 3-figure ID. Its message lengths were also not restricted to 15/20/25/30/35 groups.

The transmissions were made from Saturday to Thursday, in the time frames of 04:00 - 07:00 and 17:00 - 22:00 UTC, always starting at full hour.


  • ENIGMA Newsletter #5 (May 1994), p. 22 - read a scanned version here
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