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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