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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+Re\:\s+RE\:\s+Field\s+Strength\s+Measurements\s*$/: 4 ]

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1. LF: Re: RE: Field Strength Measurements (score: 1): Author: "Alan Melia" <[email protected]>; Date: Fri, 8 Apr 2016 00:21:34 +0100; Chris two other points 1. How far from the aerial are you taking the measurement .....you need to be at least 300 to 500 metres away 2 Because of ground loss problems even the best (fully in the clea; /rsgb_lf_group-archives/html/rsgb_lf_group/2016-04/msg00077.html (14,891 bytes)
2. Re: LF: Re: RE: Field Strength Measurements (score: 1): Author: Chris Osborn <[email protected]>; Date: Fri, 8 Apr 2016 09:36:48 +0000 (UTC); Many thanks for the rapid replies gentlemen; they are very much appreciated. Rik, thanks for the explanation of the two formulae and I've inserted that ERP formula into my spreadsheet now - excellent; /rsgb_lf_group-archives/html/rsgb_lf_group/2016-04/msg00081.html (18,669 bytes)
3. RE: LF: Re: RE: Field Strength Measurements (score: 1): Author: Rik Strobbe <[email protected]>; Date: Fri, 8 Apr 2016 10:27:56 +0000; Hello Chris, a lazy-L of 9m by 40m should have a radiation resistance (Rrad) of +/- 0.25 Ohm. If you know the antenna current (I) you can calculated the EIRP = G*I^2*Rrad where G = the antenna gain (; /rsgb_lf_group-archives/html/rsgb_lf_group/2016-04/msg00083.html (28,216 bytes)
4. Re: LF: Re: RE: Field Strength Measurements (score: 1): Author: Chris Osborn <[email protected]>; Date: Sat, 9 Apr 2016 08:20:27 +0000 (UTC); Dear Rik, Many thanks again for the most useful explanation. Some of my past career was spent in an electrical calibration lab. so I cannot get used to the scatter of readings I get with field streng; /rsgb_lf_group-archives/html/rsgb_lf_group/2016-04/msg00084.html (36,171 bytes)

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