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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*SLF\:\s+Receiving\s+the\s+American\s+power\s+grid\?\s*$/: 3 ]

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1. SLF: Receiving the American power grid? (score: 1): Author: DK7FC <[email protected]>; Date: Wed, 21 Nov 2018 14:14:16 +0100; 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 sho; /rsgb_lf_group-archives/html/rsgb_lf_group/2018-11/msg00484.html (8,974 bytes)
2. Re: SLF: Receiving the American power grid? (score: 1): Author: Roger Lapthorn <[email protected]>; Date: Wed, 21 Nov 2018 14:21:25 +0000; 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 loo; /rsgb_lf_group-archives/html/rsgb_lf_group/2018-11/msg00487.html (10,285 bytes)
3. Re: SLF: Receiving the American power grid? (score: 1): Author: DK7FC <[email protected]>; Date: Wed, 21 Nov 2018 16:52:13 +0100; Hi Roger, That's what i'm trying right now. But the frequency is not really stable, you know. So there is an optimum bandwidth. At 3.8 mHz it looks to blurry. Attached is a spectrogram in 15 mHz, cov; /rsgb_lf_group-archives/html/rsgb_lf_group/2018-11/msg00497.html (11,638 bytes)

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