M02
| Enigma ID | M02 |
| Name | |
| 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 |
M02 was ran by Austrian Army Intelligence Office (HNA). Morse code counterpart to E12, G12, V12 and V18. Last heard on 30 October 1997.
Format:
| 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.
References
- ENIGMA Newsletter #5 (May 1994), p. 22 - read a scanned version here
