[Spooks] UNID CW and Slavic transmissions, 9463kHz and 10755kHz

[Jim K-C]

Hi all,

At about 0418z today I heard a brief transmission on 10755kHz, Russian OM,  
"801" repeated 3 times. Transmission and carrier ended before I could  
record. At 0421z I came across an unidentified CW station on 9463kHz, also  
sending "801" (auto-sent, 22 wpm).  I tuned a second receiver back to  
10755kHz and maintained a listening watch. At 0430z I heard a (weak)  
Russian OM repeating "975". The transmission grew stronger over the  
following half hour, and the voice sounds very similar to the S06 OM.

Both transmissions ended at the same time, 0500z.

I can't find anything in the ENIGMA 2000 ECL that would seem to fit either  
of these transmissions.  Are they voice/CW versions of the same station?   
Was the initial voice transmission a mistake? Does anyone have ideas on a  
designation?

Jim