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E03a

Enigma ID E03a

Name Cherry Ripe
Frequencies
Status Inactive
Voice Female, automated, with British accent, the last digit in the groups was inflected
Emission mode USB
Location Northern Australia
Activity pages

Known counterpart stations E03

Last heard in December 2009.[1] Differs from E03 by the interval signal, transmitter location and scheduling.

Format:

Preamble Message Outro
First two bars of "The Cherry Ripe", rendered electronically 87383 6 chimes 69410 69410 03932 03932 42175 42175 ... 46367 46367 6 chimes First two bars of "The Cherry Ripe", rendered electronically
  5-figure message header   Fixed-length message of 200 5-figure paired groups    
Repeated 12 times Repeated 10 times       Repeated 6 times
Repeated for 10 minutes

Full transmissions always took 45 minutes, and each transmission always took place on two frequencies in parallel. The following is the schedule that E03a followed[2]:

Sunday - Friday
UTC kHz kHz
00:00 18664 21866
01:00 19884 21866
05:00 16525 18465
07:00 20610 21865
10:00 20474 23461
11:00 18864 23461
12:00 18864 23461
13:00 18864 21866
14:00 18864 20707
22:00 18864 24644
23:00 18864 21866

For a long time, E03a transmitted out of Guam, but in September 2009 it moved to Humpty Doo, in Northern Australia, where it remained for the rest of its life.[3]

References

  1. Numbers & Oddities #147 (December 2009) [accessed August 28th, 2014]
  2. Simon Mason's website [accessed August 28th, 2014]
  3. MI6 stations "Lincolnshire Poacher" and "Cherry Ripe" [accessed August 28th, 2014]
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