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Total 6 documents matching your query.

1. Re: LF: More WSPRing (score: 1): Author: Andy Talbot <[email protected]>; Date: Tue, 24 Feb 2009 09:49:07 +0000; I already have probably one of the simplest (not sure about cheapest ) 5MHz monitoring stations. Active whip feeding into an SDR-lite Rx feding into a cheap boot-sale (Ł20 quid) laptop. It doesn't ne; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-02/msg00119.html (13,745 bytes)
2. LF: More WSPRing (score: 1): Author: Andy Talbot <[email protected]>; Date: Mon, 23 Feb 2009 20:03:13 +0000; 503.870 +23dBm ERP running now, 34.375% duty cycle ... Andy G4JNT www.g4jnt.com; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-02/msg00122.html (9,178 bytes)
3. Re: LF: More WSPRing (score: 1): Author: Andy Talbot <[email protected]>; Date: Mon, 23 Feb 2009 21:20:41 +0000; That's very interesting - I appear to be 10 - 15dB better S/N with you Johan (-5db S/N) at 1200km, than with GM4ISM (-20dB S/N) at 577km. Background noise levels ? Sea path ? Andy G4JNT www.g4jnt.com; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-02/msg00198.html (10,327 bytes)
4. Re: LF: More WSPRing (score: 1): Author: "Mark" <[email protected]>; Date: Mon, 23 Feb 2009 23:56:29 +0100; Hi all, Not withstanding the fickle nature of propagation, my WSPR / Grabber receive antenna is not the most efficient, and does suffer from an elevated noise floor compared to my main station antenn; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-02/msg00315.html (11,181 bytes)
5. Re: LF: More WSPRing (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Mon, 23 Feb 2009 21:52:07 +0100; Solid copy in JO67MR Andy, including the CW ID! 73 Johan SM6LKM PNG image; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-02/msg00432.html (8,759 bytes)
6. Re: LF: More WSPRing (score: 1): Author: "Johan H. Bodin" <[email protected]>; Date: Mon, 23 Feb 2009 22:38:12 +0100; Hmm... I don't know Andy, my local environment is very quiet at the moment but it could also be a trick of the ionosphere... My aerial tonight is far from optimal on 600m. It is a horizontal dipole f; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-02/msg00452.html (9,660 bytes)

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