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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+472kHz\s+ERP\s+calculations\s+based\s+on\s+WSPR\s+results\s*$/: 3 ]

Total 3 documents matching your query.

1. Re: LF: 472kHz ERP calculations based on WSPR results (score: 1): Author: Dimitrios Tsifakis <[email protected]>; Date: Tue, 22 Jan 2013 11:47:24 +1100; The noise floor is variable (over time) and the noise in WSPR S/N is calculated on a 2500 Hz window that may contain all sorts of RF garbage that come and go and will influence the noise calculation.; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-01/msg00068.html (9,989 bytes)
2. Re: LF: 472kHz ERP calculations based on WSPR results (score: 1): Author: Stefan Schäfer <[email protected]>; Date: Mon, 21 Jan 2013 23:38:57 +0100; Maybe you can show your location and the locations of the RX stations in a map. Then add the calculated ERP. Maybe you can find some more RX stations and you will see a directional pattern from the a; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-01/msg00261.html (13,286 bytes)
3. LF: 472kHz ERP calculations based on WSPR results (score: 1): Author: Roger Lapthorn <[email protected]>; Date: Mon, 21 Jan 2013 22:05:46 +0000; With several repeatable ground wave reports on 472kHz WSPR using my 20m baseline earth-electrode antenna today, I decided it was time for a recalculation of my ERP based on a formula (for 500kHz) sup; /rsgb_lf_group-archives/html/rsgb_lf_group/2013-01/msg00574.html (12,229 bytes)

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