[Lowfer] VLF OT

[David L. Wilson]

Usual 50 Bd/50 Hz shift TACAMO followed by his higher baud modes.  
In fact, the brief 50 Bd clip you posted transmitted:
 CHANNEL ONE
 CHANNEL ONE
 CHANN
at 50 Bd/50 Hz shift FSK baudot before going to higher baud MSK.  (I looped
the audio back to the mic input and used MultiPSK to decode.)
This is what they transmit at the beginning and end of the broadcast.
Note that  'CHANNEL ONE" does not indicate this frequency but rather a
particular broadcast.
Occurs several times a week on 22.7, or 17.8, or other frequencies.

--
David L. Wilson



> -----Original Message-----
> From: Lowfer [mailto:lowfer-bounces at mailman.qth.net] On Behalf Of
> Laurence KL7 L
> Sent: Sunday, December 28, 2014 7:02 PM
> To: lowfer at mailman.qth.net
> Subject: [Lowfer] VLF OT
> 
> Interesting intermittent RTTY and wideband signals today on 22.7kHz - very
> strong here.
> 
> Interesting to see stepped ramped down on Mark signal and slow ramp up to
> MFSK
> 
> Signals seen 4 times between 1830Z and 2230Z
> 
> 
> http://kl7l.com/tscshort.mp3
> 
> still visible on http://kl7l.com/fast00000.jpg
> 
> Laurence
> 
> 
> 
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