[Lowfer] VO1NA? on 137.777 kHz ebnaut

[Garry]

I'm seeing a strong signal line on 137.777 kHz at 1130Z. That's the 
frequency VO1NA uses. It's rather strong for so early in the evening but 
perhaps that's him.

I understand from Mike, WA3TTS that VO1NA and a number of Europeans have 
been using a special modulation/demodulation of late called ebnaut. I 
guess that may stand for operation at Eb/N0=0, quite near the Shannon 
limit. Anyway, see http://abelian.org/ebnaut/software_ms.shtml for 
windows software.

Does anyone know what entries are required in the decoder? Also, how is 
spectrum lab set up to timestamp the received signal and output a wave 
file with I/Q samples?

This seems to be the evolution of software by Paul Todmorden, used by 
Dex, W4DEX to send digital messages from NC to Europe at 8971.1 Hz (no, 
I didn't leave out a k!). See http://w4dex.com/vlf/8971Hz/.

-- 
Garry, K3SIW, EN52ta, Elgin, IL