S17b
| Enigma ID | S17b |
| Name | Czech Lady "Control" |
| Frequencies | |
| Status | Inactive |
| Voice | Female, automated |
| Emission mode | AM |
| Location |
Czechoslovakia
|
| Activity pages |
S17b was run by the Czech military intelligence. The language was Czech. It was a variant of S10d that always conveyed a single group message.
| Preamble | Message | Outro | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 555 | 555 | 555 | 589 | 589 | 589 | 01 | 589 | 589 | 589 | 18 | 18 | 01 | 01 | Pozor, Pozor | 44447 44447 | Pozor, Pozor | 18 | 18 | 01 | 01 | Konec, Konec |
| 3-figure arbitrary ID, identical in each transmission | 3-figure recipient ID | Group count, always "01", indicating one group | 3-figure recipient ID | 2-figure number, purpose unknown | Group count, always "01", indicating one group | One 5-figure paired group | 2-figure number, purpose unknown | Group count, always "01", indicating one group | |||||||||||||
| Repeated for 5 minutes | |||||||||||||||||||||