E11b message

E11b appeared on 9576 kHz USB mode, at 0845z but with a strong broadcast station creating interference.

0845z:
"233 oblique 36" repeated (a 36 group message will follow for Agent 236!)

0850z:
"Attention
77777 77777 42625 86583 67621 12764 31819 86701 48630 68251
03187 21700 56892 88330 59132 89989 91457 78190 51226 50289
25202 73666 89999 89303 36928 70176 34896 90263 47855 74088
94098 50799 04697 86814 77777 77777"

(each group repeated twice)

Pause every 10 groups. 5 is pronounced as "fiver", 9 as "ninour" and
as usual 0 as "tsero"!

0854z:
"Attention
77777 77777 42625 86583 67621 12764 31819 86701 48630 68251
03187 21700 56892 88330 59132 89989 91457 78190 51226 50289
25202 73666 89999 89303 36928 70176 34896 90263 47855 74088
94098 50799 04697 86814 77777 77777"

(each group repeated once)

0856z:
"Out!"

Listen the recording!

Update 12/05/2007: Is it "6" or "8"?

If you monitor Enigma2000 or this blog, I have mentioned that the third group was 42825 and not 42625. It was my mistake. Noise and BC QRM conspired against me and made "8" to sond like "6". With the help of Mike and some spectrogram analysis, it is proved now that no oddities occurred! The message and the repeat were the same. Here is the proof.

(Hmmm.... Blogger hates animated gifs?)

This is an animated gif of the two spectrograms. The first frame is from the segment "...42?25 865..." of the repeat (the one in question and the noisier) while the second is from exactly the same part of the transmission, when the lady says the same groups, in the beginning of the transmission, being for sure "...42625 865..." (reference).

The number in question is at 0.9 - 1.6 sec of the horizontal (time) axis. Keep your eye on the feature located at 1.1sec and ~2800 Hz.

I also measured the time-distances between prominent features of the reference spectrogram, and compared the results between the spectrograms. No great differences found, so the lady didn't make any mistake! The only one to blame is the BC station and bad luck!

Here are the two sound segments: Reference - repeat. I know -- it is very tricky!

Update 13/05/2007:
Because it is tricky, here is the repeat, processed. It is 6 isn't it?

So the case is finally closed...