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Re: VLF: EbNaut transmissions on lower frequencies?, pre-tests: 6.47kHz

To: [email protected]
Subject: Re: VLF: EbNaut transmissions on lower frequencies?, pre-tests: 6.47kHz
From: Paul Nicholson <[email protected]>
Date: Fri, 13 May 2016 11:04:31 +0000
In-reply-to: <[email protected]>
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The Eb/N0 of +5.1 dB is correct.  It was a very good signal
and an easy decode.

The 11.2 dB in 24.0 uHz is wrong: there's a mains harmonic in
the passband of the background noise measurement.  It's not
a very strong harmonic, far too small to trigger a hum notch,
but when averaged over 11 hours it adds several dB to the
background noise measurement against which the 11.2 dB was
calculated.

So Stefan, a very good signal indeed!

--
Paul Nicholson
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