Enigma ID S11a

Spectrum image e11a_spectr

Name Cherta
Status Active
Voice Female, with Polish accent
Emission mode USB
Location Warsaw, Poland
Activity pages

Download audio sample

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

S11a is the Russian language flavor of the Polish 11 operator.

Null format:

371 Cherta 00 Konets
3-digit ID "/" Group count  
Repeated for 3 minutes 10 seconds  

Traffic format:

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

All S11a schedules are twice weekly, follow year-round UTC (no DST adjustments), and use up to three different frequencies depending on the month - one from November to February, another from May to August, and yet another for the remaining months. The first two digits of the ID identify a particular schedule.

On each schedule, only null messages are broadcast for the majority of the time. However, traffic is sent at least once every month, on a seemingly random week. The standard group count range is 30 to 40 groups inclusive. On rare occasions, extra messages may be delivered within a month that may exceed this range.

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