Enigma ID S11a

Spectrum image e11a_spectr

Name Cherta
Frequencies Several frequencies spanning 4 to 19 MHz
Status Active
Voice Female, automated, with Polish accent
Emission mode USB
Location Poland
Activity pages

Download audio sample

Known counterpart stations E11, G11, S11, M03, F03, F11, P03

Run by one of Polish intelligence agencies. Its active counterparts are E11, F03, F11, and P03. Its defunct counterparts are G11, S11, and M03.

Non-traffic format:

371 Cherta 00 Konets
3-figure ID / No groups  
Repeated for 3 minutes 15 seconds  

Traffic format:

Intro Message Outro
420 Cherta 38 49468 49468 ... 08682 08682 49468 51422 ... 53682 08682 Konets
3-digit ID / Group count 5-digit paired groups,
pause every 10 pairs
Single group repeat,
pause every 10 groups
Repeated for 3 minutes 15 seconds      

The voice uses Polish phonetic pronunciation:

0 1 2 3 4 5 6 7 8 9 * / +
Nul Adinka Dwojka Trojka Cienciorka Pietiorka Szest Siem Wosiem Diewiet Wnimanie Cirta Kaniec


All S11a schedules are weekly, follow year-round UTC (no DST adjustments), and use one of three different frequencies depending on the month - one for November to February, one for May to August and one for the remaining months. For most of the time there is no traffic, and one random week of the month a message is sent that always consists of 30-38 groups. Those always have a repeat transmission in the same week.

Your browser is out-of-date!

Update your browser to view this website correctly. Update my browser now