Re: LF: K7PO testing 8270.0

[Ward K7PO <wmwheaton@aim.com>]

Trying again . . . I'm hoping for 24 hours this time.

8270.0  800ma  On at 2300Z  4 Mar 2018


Ward  K7PO/WH2XXP
Tonopah, AZ  DM33nn

-----Original Message-----
From: Paul Nicholson <vlf0403@abelian.org>
To: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Sent: Fri, Feb 9, 2018 8:00 am
Subject: Re: LF: K7PO testing 8270.0


Looking at the signal at Hawley in 1 hour chunks, S/N in 278 uHz
and phase:

23 - 00 12.0 dB -36.1 deg
00 - 01 16.6 dB 185.5 deg
01 - 02 18.1 dB 99.1 deg
02 - 03 no signal
03 - 04 no signal
04 - 05 no signal
05 - 06 16.1 dB 71.4 deg
06 - 07 16.7 dB 108.8 deg
07 - 08 no signal
08 - 09 no signal
09 - 10 no signal

When the signal is there, it is very strong and a sharp line on
frequency. Then it vanishes for a few hours. Perhaps shifted to
a frequency outside the narrow band I'm using? Also the phase is
changing. Those phase changes are causing the apparent spread
in the long narrow spectrum.

The pattern at Forest VA is similar but the signal is weaker so
harder to measure.

I'd guess, an intermittent GPS lock. When it works, it works well,
a really good signal.

No sign of the signal here in Todmorden (8300 km), not much
chance until the tx is firmly locked, frequency and phase. Then
there will be a good chance I think.

--
Paul Nicholson
--