I didn't think anyone was listening -- many thanks Paul.
The module is expected to arrive soon and new halyards are
in place. It should be an interesting autumn.
73
Joe VO1NA
On Mon, 28 Aug 2017, Paul Nicholson wrote:
Joe VO1NA wrote:
Testing the coil amp and dds ... [24th]
8 uW.
Off at ~1600 utc today. [27th]
http://abelian.org/vlf/tmp/170828a.gif
That's two daytime signals, 25th and 26th 10:00 to 20:00,
combined coherently, bin width is 27.8 uHz.
S/N of the combined days is 16.0 dB.
Adding the two days non-coherently gives only 9 dB.
I couldn't get anything useful out of the nighttime signal.
I'll be glad when you get a GPS locked carrier, it's a bit
tricky coherently combining recordings when the frequency is
not known!
--
Paul Nicholson
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