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1. LF: Untuned loops (score: 1): Author: "Andy" <[email protected]>; Date: Tue, 15 Mar 2005 10:04:23 +0100; Can anyone recall this equation, I know it was mentioned on this reflector before... What is the output voltage for an untuned small loop into an arbitrarily high impedance? It is proportional to H,; /rsgb_lf_group-archives/html/rsgb_lf_group/2005-03/msg00260.html (9,065 bytes)
2. Re: LF: Untuned loops (score: 1): Author: "John Rabson" <[email protected]>; Date: Tue, 15 Mar 2005 09:08:35 +0000; Ian Drummond described something like this in an early issue of CREGJ. I will see what I can find. John G3PAI ** REPLY SEPARATOR ** Can anyone recall this equation, I know it was mentioned on this re; /rsgb_lf_group-archives/html/rsgb_lf_group/2005-03/msg00261.html (9,636 bytes)
3. Re: LF: Untuned loops (score: 1): Author: [email protected]; Date: Tue, 15 Mar 2005 04:56:01 -0500; Hi Andy U = omega * 發 * H * area with 發 = 4 * pi * 10^-7 Vs/A/m, omega = 2 * pi * f . 73 de Markus, DF6NM --Original Message-- From: Andy <[email protected]> To: [email protected] S; /rsgb_lf_group-archives/html/rsgb_lf_group/2005-03/msg00262.html (10,128 bytes)
4. Re: LF: Untuned loops (score: 1): Author: Alberto di Bene <[email protected]>; Date: Tue, 15 Mar 2005 11:35:50 +0100; A good discussion (with formulas) on the subject can be found here : http://www.vlf.it/octoloop/rlt-n4ywk.htm 73 Alberto I2PHD -- Andy wrote: Can anyone recall this equation, I know it was mentioned; /rsgb_lf_group-archives/html/rsgb_lf_group/2005-03/msg00265.html (10,410 bytes)
5. Re: LF: Untuned loops (score: 1): Author: "Andy" <[email protected]>; Date: Tue, 15 Mar 2005 13:34:03 +0100; Thanks to all respondees - I knew it was a simple formula and was (theroretically) an exact way of determining field strength. Just need to make sure the input impedance of the voltmeter is significa; /rsgb_lf_group-archives/html/rsgb_lf_group/2005-03/msg00267.html (11,561 bytes)
6. RE: LF: Untuned loops (score: 1): Author: "james moritz" <[email protected]>; Date: Wed, 16 Mar 2005 17:45:15 +0100; Dear Andy, LF Group, I did a lot of experiments with measuring loops a few years back for a project at work. You can get results that are within a few dB quite easily, provided the loading effect of; /rsgb_lf_group-archives/html/rsgb_lf_group/2005-03/msg00280.html (17,802 bytes)

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