priyom.org

G18

Enigma ID G18

Name Eight Note Rising Scale
Frequencies
Status Inactive
Voice Female
Emission mode AM
Location Czechoslovakia
Activity pages

Known counterpart stations

G18 was presumably operated by Czechoslovak intelligence, guessing by similarities of the format with S10. Ceased around 1973. Only one recording is known to exist, made by Simon Mason, which is included on The Conet Project.

Transmission format:

Preamble Message Outro
Eight note rising and falling scale 67882 91 24 Achtung, Achtung, Achtung 78327 78327 49858 49858 12083 12083 ... 67882 91 24 Ende
  Presumably 5-figure recipient ID Presumably 2-figure one-time pad number Amount of 5-figure groups in the message   5-figure paired groups Presumably 5-figure recipient ID Presumably 2-figure one-time pad number Amount of 5-figure groups in the message  
Repeated for 5 minutes

The voice used standard German military pronuncation of "2" and "9", being rendered as "zwo" and "neuen", respectively.

[Based on a letter on Simon Mason's website]

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