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Re: SLF: Receiving the American power grid?

from [Roger Lapthorn] [Permanent Link][Original]
To: "[email protected]" <[email protected]>
Subject: Re: SLF: Receiving the American power grid?
From: Roger Lapthorn <[email protected]>
Date: Wed, 21 Nov 2018 14:21:25 +0000
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Yes, I can see it faintly.It would be good to look at 60Hz in a much narrower bandwidth?

73s
Roger G3XBM



On Wed, 21 Nov 2018 at 13:17, DK7FC <[email protected]> wrote:
Hi SLF friends,

Take a look at
http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html
There, on the 4th image from the top you can see a faint but
concentrated trace at 60 Hz. This should be the 60 Hz grid frequency as
used in NA and SA. It has been detected in a smaller bandwidth in the
past, but from this location on the tree, it is the first time that i
see it in 45 mHz FFT bin width.
The QRN is very low these days, in that range!

73, Stefan

PS: At 16 2/3 Hz you can see the German railway power grid changing its
colour, depending on where trains are currently driving.

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