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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+My\s+first\s+tests\s+below\s+9\s+kHz\s*$/: 3 ]

Total 3 documents matching your query.

1. Re: LF: My first tests below 9 kHz (score: 1): Author: ALAN MELIA <[email protected]>; Date: Sat, 20 Feb 2010 23:32:21 +0000 (GMT); Hi Horst dont forget you are in the near field at that frequency and the signal strength drops of as the third or fourth power of the distance (not the square) until you are about 15km away from the; /rsgb_lf_group-archives/html/rsgb_lf_group/2010-02/msg00031.html (12,071 bytes)
2. LF: My first tests below 9 kHz (score: 1): Author: Horst Stöcker <[email protected]>; Date: Sat, 20 Feb 2010 17:39:21 +0100 (CET); Hello, some years before, some experimental licences for ham radio below 9 kHz were issued in germany. Meanwhile this frequency range is free as the Bundesnetzagentur has confirmed last year. Transmi; /rsgb_lf_group-archives/html/rsgb_lf_group/2010-02/msg00190.html (9,307 bytes)
3. Re: LF: My first tests below 9 kHz (score: 1): Author: Roger Lapthorn <[email protected]>; Date: Sat, 20 Feb 2010 17:02:30 +0000; Horst, You may be interested in my web page about amateur communications below 10kHz. Have you tried grounded electrode pairs and "earth mode" through-the-ground conduction/induction communications?; /rsgb_lf_group-archives/html/rsgb_lf_group/2010-02/msg00378.html (12,377 bytes)

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