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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+Scopemeter\s+current\s+reading\s+question\s*$/: 8 ]

Total 8 documents matching your query.

1. LF: Scopemeter current reading question (score: 1)
Author: Chris Wilson <[email protected]>
Date: Tue, 13 Jun 2017 16:17:17 +0100
Hello LF'ers, My scopemeter shows current and voltage waveforms of course, but what relationship does the current waveform have to the actual antenna current? I am sad to say I haven't yet built a tr
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-06/msg00116.html (9,750 bytes)

2. Re: LF: Scopemeter current reading question (score: 1)
Author: DK7FC <[email protected]>
Date: Tue, 13 Jun 2017 17:26:57 +0200
Hi Chris, The waveform should look like a pure sine wave. Then it would say nothing but "it's all right, pse QRO!". Maybe i misunderstand the question. BTW you are QRV in WSPR. Are you also ready for
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-06/msg00117.html (10,119 bytes)

3. Re: LF: Scopemeter current reading question (score: 1)
Author: Nick <[email protected]>
Date: Tue, 13 Jun 2017 16:41:46 +0100
Well it depends on what you mean by scopemeter ... Do you mean a scope match <http://ve7sl.blogspot.co.uk/2014/08/your-lf-stations-best-friend-scopematch_5.html> ? or one of those 'fluke' handheld s
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-06/msg00118.html (11,411 bytes)

4. Re: LF: Scopemeter current reading question (score: 1)
Author: Chris Wilson <[email protected]>
Date: Tue, 13 Jun 2017 16:54:04 +0100
Hello Nick, Sorry, for some reason I always call it a scopeMETER wheras I really mean a Scopematch, and I too have built it to give equal height traces. the traces are perfect sine waves and near as
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-06/msg00120.html (12,346 bytes)

5. Re: LF: Scopemeter current reading question (score: 1)
Author: Chris Wilson <[email protected]>
Date: Tue, 13 Jun 2017 16:56:40 +0100
Hello DK7FC, Hi Stefan, I replied in depth as to what I really mean above. I mix Scope meter and scopematch up sometimes ;) I have never tried JT9, and am not sure if my U3S exciter runs that mode. H
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-06/msg00121.html (11,315 bytes)

6. Re: LF: Scopemeter current reading question (score: 1)
Author: Gary - G4WGT <[email protected]>
Date: Tue, 13 Jun 2017 17:13:25 +0100
Hi Chris, Have a look at this page on my website. At the bottom right is a link which may answer your question. http://myweb.tiscali.co.uk/wgtaylor/LF%20&%20MF%20Experiments%2013.html A very informat
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-06/msg00122.html (10,784 bytes)

7. Re: LF: Scopemeter current reading question (score: 1)
Author: Nick <[email protected]>
Date: Tue, 13 Jun 2017 17:45:43 +0100
Ah! Now there is a question - to which I don't know the answer. Too many variables I think. When I did put a gash RF-current meter in line with my antenna it mucked up the tuning, quite a lot :-( So
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-06/msg00123.html (11,656 bytes)

8. Re: LF: Scopemeter current reading question (score: 1)
Author: Chris Wilson <[email protected]>
Date: Wed, 14 Jun 2017 17:01:58 +0100
Hello DK7FC, I have never tried JT9, but it appears my U3S exciter covers that mode. What time span (there's JT9-2 upwards it seems), and what frequency is appropriate? I am happy to give it a shot!
/rsgb_lf_group-archives/html/rsgb_lf_group/2017-06/msg00126.html (11,152 bytes)


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