priyom.org

E07

Enigma ID E07

Spectrum image e07_spectr

Name English Man
Frequencies Various
Status Active
Voice Male, automated, with fake British accent (actually American)
Emission mode AM, USB
Location Russia
Activity pages

Download audio sample

Known counterpart stations G07, S07, V07, M12, XP, XPH, XPA, XPA2

Run by one of Russian intelligence agencies. Its active counterparts are V07, M12, XPA and XPA2. Its defunct counterparts are G07 and S07.

Non-traffic format:

553 553 553 000
3-digit schedule ID  
Repeated for 2 minutes

Traffic format, single message:

Intro Preamble Message Outro
845 845 845 1 728 26 728 26 75161 11770 ... 55934 25313 000 000
3-digit schedule ID Message count 3- or 4-digit group,
purpose unknown
Group count 3- or 4-digit group,
purpose unknown
Group count 5-digit single groups  
Repeated for 2 minutes            

Traffic format, two messages: (rarely heard)

Intro Preamble Message Intro Preamble Message Outro
124 124 124 2 4582 132 4582 132 67540 37492 ... 19241 81259 124 124 124 2 8248 112 8248 112 94213 70216 ... 03679 52901 000 000
3-digit schedule ID Message count 3- or 4-digit group,
purpose unknown
Group count 3- or 4-digit group,
purpose unknown
Group count 5-digit single groups 3-digit schedule ID Message count 3- or 4-digit group,
purpose unknown
Group count 3- or 4-digit group,
purpose unknown
Group count 5-digit single groups  
Repeated for 2 minutes           Repeated for 1 minute            

There also is a small variant format E07a.

Transmissions use either AM or USB mode. In USB mode, the voice samples are played at original speed. In AM, the speed and pitch are increased by +10%.

Scheduled transmissions

Each E07 schedule consists of three identical transmissions, spaced 20 minutes apart. From 00:00 to 11:59 UTC, the frequencies of subsequent repeats increase - and from 12:00 to 23:59 UTC decrease - by roughly 1-2 MHz. The third transmission doesn't take place in case of lack of traffic. The hundredths digits from each transmission, gives the schedule ID. Each schedule is weekly and normally has a repeat transmission later in the week, the weeks beginning on Sunday. The frequencies change monthly.

Exercise transmissions

The frequencies 10250 & 10256 kHz are used for presumed exercise transmissions of E07, M12, XPA2 and XPA. Those don't follow the scheduling rules described above. Broadcasts are made on either of those frequencies, and repeated 10 minutes later on the frequency other than the first broadcast. There always is at least one simulated transmission failure in each broadcast.

E07 may use the voice of E06 in those exercise broadcasts.

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