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Re: LF: VO1NA in Todmorden on 8270 Hz - also in Amberg?

To: [email protected]
Subject: Re: LF: VO1NA in Todmorden on 8270 Hz - also in Amberg?
From: [email protected]
Date: Sun, 15 Oct 2017 09:51:45 -0230 (NDT)
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Thanks Paul for the detailed reports. I will now try some bpsk
and will keep working on the neo7.

73
Joe VO1NA

On Fri, 13 Oct 2017, Paul Nicholson wrote:


Summary of recent carrier from VO1NA, measurements
in 34.72uHz  (8 hours).

Overnight signals 23:00 to 07:00 UT:

 4th/5th   0.061 fT  S/N 12.6 dB  noise 0.014 fT;
           http://abelian.org/vlf/tmp/171007b.gif
 5th/6th   0.083 fT  S/N 14.5 dB  noise 0.016 fT;
           http://abelian.org/vlf/tmp/171007c.gif
 6th/7th   0.041 fT  S/N 11.4 dB  noise 0.011 fT;
           http://abelian.org/vlf/tmp/171007d.gif
 7th/8th   0.047 fT  S/N 12.0 dB  noise 0.012 fT;
           http://abelian.org/vlf/tmp/171008a.gif
 8th/9th   0.046 fT  S/N  9.1 dB  noise 0.016 fT;
 9th/10th  no signal detected, high noise;
10th/11th  no signal detected, high noise;
11th/12th  0.054 fT  S/N 10.2 dB, noise 0.017 fT;

Daytime 10:00 to 18:00 UT:

 7th    0.033 fT  S/N 10.9 dB  noise 0.0094 fT;
 8th:   0.033 fT  S/N 15.1 dB  noise 0.0057 fT;
        http://abelian.org/vlf/tmp/171011a.gif
 9th:   0.022 fT  S/N 8.8 dB   noise 0.0083 fT;
10th:   no signal detected, noise 0.012 fT;
11th:   no signal detected, noise 0.0085 fT;
12th:   0.040 fT  S/N 13.7 dB  noise 0.0082 fT;

Considering the undisciplined OCXO is not always within
one bin, this looks like a fairly reliable path.

That's all I can do for now.  Interruptions to E-field
reception today and for some time to come.

--
Paul Nicholson
--



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