Enigma ID M39
Status Inactive
Voice N/A
Emission mode ICW
Location Czechia
Activity pages

M39 was run by the Czech military intelligence. It used the same frequencies as M10. However, it didn't transmit conventional 5-figure group messages.

The transmission format is given below. Standard five dashes were used for zero.

458 458 458 76621 76621 Rapid dashes
3-figure ID 5-figure group  
Repeated for 2 minutes Repeated for 15 seconds
Repeated with different 5-figure group  

M39 had no specific outro, it simply ended following the last series of dashes.

[Based on ENIGMA 2000 Morse Profiles List]