Re: LF: Re: U.S. VLF License WH2XBA

[<jrusgrove@comcast.net>]

Paul

Note that Bob's transmission did not resume until well after the 2330Z suggested time. I didn't have 
the grabber running at the time but would estimate that it was ~0015Z. His end time last night was 
0720Z within a minute or two. Hope this helps.
Jay


----- Original Message ----- 
From: "Paul Nicholson" <vlf0403@abelian.org>
To: <rsgb_lf_group@blacksheep.org>
Sent: Sunday, March 02, 2014 1:09 AM
Subject: Re: LF: Re: U.S. VLF License WH2XBA


> > Here's what he's sending ... http://www.w1vd.com/grabber.html
>
> Thanks Jay.
>
> Later I will make a spectrogram (the signal is recorded) but I
> don't think I will be able to resolve the Morse.
>
> I am happy that the tx preserves carrier phase in between dots
> otherwise it would not be possible to do long integration.
>
> The carrier stability is excellent and the little apparent
> error in the frequency can be blamed on the path length varying
> during the night.   tx must be using rubidium or GPS.
>
> Signal level should drop soon as dawn arrives here in UK and
> we may see the phase lead increase as the path shortens
> for the daytime ionosphere.
>
>  2014-03-02_05:15:00  0.14 fT   12.3 deg
>  2014-03-02_05:30:00  0.15 fT   13.1 deg
>  2014-03-02_05:45:00  0.12 fT    3.2 deg
>
> --
> Paul Nicholson
> --