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Re: LF: 82 Hz signal

To: [email protected]
Subject: Re: LF: 82 Hz signal
From: Jacek Lipkowski <[email protected]>
Date: Mon, 29 May 2017 11:51:07 +0200 (CEST)
In-reply-to: <[email protected]>
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User-agent: Alpine 2.11 (DEB 23 2013-08-11)
On Mon, 29 May 2017, Paul Nicholson wrote:

I don't see these 90Hz and 92Hz signals here this
morning, 06:00 to 08:30 UT.   Nothing in the range
87.5 to 92.5 Hz.
then most probably it's intermodulation or it could also be a local signal
(although most local interference signals aren't that stable).
Zevs is strong here, this is yesterday

http://abelian.org/vlf/tmp/170529a.png
what do you use for making these long spectrograms? vtsidgram?

jacek


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