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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+Field\s+strength\s+calcs\.\s*$/: 7 ]

Total 7 documents matching your query.

1. Re: LF: Field strength calcs. (score: 1)
Author: "James Moritz" <[email protected]>
Date: Fri, 11 Jul 2003 16:56:40 +0100
At 14:54 08/07/2003 +0200, you wrote: I think 2km is not quite enough at 73kHz. I calculated the total field over perfect ground at 2km distance by means of a antenna simulation program. I found E/H
/rsgb_lf_group-archives/html/rsgb_lf_group/2003-07/msg00109.html (12,095 bytes)

2. Re: LF: Field strength calcs. (score: 1)
Author: "Dick Rollema" <[email protected]>
Date: Tue, 08 Jul 2003 14:54:46 +0200
To All from PA0SE Jim, M0BMU wrote: The voltage induced in a loop is: V = 2.1x10^-8 (fNAE) where f = frequency (Hz) N = number of turns A = area (m^2) E = field strength (V/m) Always assuming that th
/rsgb_lf_group-archives/html/rsgb_lf_group/2003-07/msg00150.html (10,228 bytes)

3. Re: LF: Field strength calcs. (score: 1)
Author: "dj9dw" <[email protected]>
Date: Tue, 8 Jul 2003 09:39:20 +0200
Hello James, thanks for your enlighting explainations on fs-calc via loop. Now I know how to and give my new toy, SNA-1 analyzer, its first serious task measuring my neighbour in Mainflingen. vy 73,
/rsgb_lf_group-archives/html/rsgb_lf_group/2003-07/msg00152.html (11,813 bytes)

4. Re: LF: Field strength calcs. (score: 1)
Author: "James Moritz" <[email protected]>
Date: Mon, 07 Jul 2003 12:14:23 +0100
I made measurements under both conditions but the results are puzzling - even allowing for my peripatetic decimal point! Dear Ian, LF Group, The voltage induced in a loop is: V = 2.1x10^-8 (fNAE) whe
/rsgb_lf_group-archives/html/rsgb_lf_group/2003-07/msg00155.html (11,585 bytes)

5. Re: LF: Field strength calcs. (score: 1)
Author: "Ian Kyle" <[email protected]>
Date: Mon, 7 Jul 2003 10:36:37 +0100
Thanks Dick, that is what I took out of our previous exchange on FS, but I am rather shaken to find that according to the signal strengths received on a calibrated Datong/TS850 setup from a1t. 1m.sq
/rsgb_lf_group-archives/html/rsgb_lf_group/2003-07/msg00167.html (10,225 bytes)

6. Re: LF: Field strength calcs. (score: 1)
Author: "Dick Rollema" <[email protected]>
Date: Sun, 06 Jul 2003 22:58:50 +0200
To All from PA0SE Ian wrote: When making the signal strength measurements using a loop antenna should this be resonated or aperiodic? A resonated loop produces more signal but has to be calibrated by
/rsgb_lf_group-archives/html/rsgb_lf_group/2003-07/msg00170.html (9,412 bytes)

7. LF: Field strength calcs. (score: 1)
Author: "Ian Kyle" <[email protected]>
Date: Sun, 6 Jul 2003 17:26:16 +0100
Shortly before the 73 KHz band was withdrawn I managed to get some measurements made but the resulting calcs based on PA0SE in the LF book and Terman are giving very pecuiar results for radiated powe
/rsgb_lf_group-archives/html/rsgb_lf_group/2003-07/msg00173.html (9,127 bytes)


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