Re: LF: More EbNaut 137.777

[Paul Nicholson <vlf0403@abelian.org>]

 VO1NA 2015-11-28/29 EbNaut 8K19A 2S 8C.
 No T sweep, assuming good clock.

 21:30  2.1 dB
 22:00  no decode
 22:30  no decode
 23:00  no decode
 23:30  no decode
 00:00  8.6 dB
 00:30  2.1 dB
 01:00  3.2 dB
 01:30 -0.2 dB
 02:00  no decode
 02:30  no decode
 03:00  5.6 dB
 03:30  no decode
 04:00  no decode
 04:30  no decode
 05:00  8.6 dB
 05:30  no decode
 06:00  rx off for battery charge

I took the 00:00 message and ran a cross-correlation with
a locally generated copy of the message

 http://abelian.org/vlf/tmp/151129a.gif

The correlation peaks at a delay of 27.5 mS.

Later I'll do the same with the messages that didn't
decode, perhaps to determine if there was a fault, or
the signal was just too weak.

--
Paul Nicholson
--