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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+Re\:\s+Coupling\s+between\s+two\s+antennas\s*$/: 4 ]

Total 4 documents matching your query.

1. Re: LF: Re: Coupling between two antennas (score: 1): Author: "Steve Rawlings" <[email protected]>; Date: Sun, 06 May 2001 17:55:45 +0100; from GW4ALG> I'm very grateful to Bob ZL2CA for his important observations and comments. Firstly, a couple of points of clarification: 1) My loop is orientated in the vertical plane. It is a delta-lo; /rsgb_lf_group-archives/html/rsgb_lf_group/2001-05/msg00260.html (10,593 bytes)
2. LF: Re: Coupling between two antennas (score: 1): Author: "Vernall" <[email protected]>; Date: Sun, 6 May 2001 09:15:57 +1200; Steve, Do I take it that your loop lies in a horizontal plane? Most of the frame loops for LF receiving are in a vertical plane. Thus there is a further matter of polarisation to consider (and it is; /rsgb_lf_group-archives/html/rsgb_lf_group/2001-05/msg00269.html (11,790 bytes)
3. Re: LF: Re: Coupling between two antennas (score: 1): Author: "Steve Rawlings" <[email protected]>; Date: Sat, 05 May 2001 20:18:12 +0100; 8V p-p in 50 ohms is 0.16W, not 60mW So you have 34dB coupling - you were right to expect more than 40dB ! That's more like it! (I think my conversion to rms went wrong.) I'll use the formula below; /rsgb_lf_group-archives/html/rsgb_lf_group/2001-05/msg00271.html (8,603 bytes)
4. LF: Re: Coupling between two antennas (score: 1): Author: "Andrew Talbot" <[email protected]>; Date: Sat, 5 May 2001 19:00:27 +0100; The measured voltage was 8 volts peak-to-peak, corresponding to a power of about 60 mW. 8V p-p in 50 ohms is 0.16W, not 60mW So you have 34dB coupling - you were right to expect more than 40dB ! Andy; /rsgb_lf_group-archives/html/rsgb_lf_group/2001-05/msg00272.html (8,009 bytes)

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