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Total 409 documents matching your query.

241. Re: LF: Receiver insensitivity (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Fri, 19 Jan 2001 12:36:38 +0100
I tried to send this message 3 times last week it apparently got held up as I had started the subject line with the word "help" the software at Blacksheep thought it was some sort of command but cou
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00450.html (10,114 bytes)

242. Re: LF: Dipole antenna at LF (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Thu, 18 Jan 2001 17:12:44 +0100
ON7YD wrote: When I got it correct you ran a long (fence) wire as a monopole against ground. I believe that a dipole could have a very different behaviour. With a monopole use the ground as counterwe
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00472.html (10,078 bytes)

243. RE: LF: Dipole antenna at LF (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Thu, 18 Jan 2001 17:04:48 +0100
Careful, Andy. The last time I operated amateur radio on Portsdown Hill (2m AM!) the Navy Police arrived within five minutes. Mike, G3XDV (IO91VT) http://www.lf.thersgb.net
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00473.html (9,836 bytes)

244. Re: LF: Dipole antenna at LF (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Thu, 18 Jan 2001 16:18:50 +0100
I hope this relates, but we used to lay MF and HF antennas on the surface of the snow or even ice in the Canadian Arctic. When we started it was a big deal to use some poles about 5 or 6 ft long to
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00476.html (10,071 bytes)

245. Re: LF: Dipole antenna at LF (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Thu, 18 Jan 2001 15:07:21 +0100
G4JNT wrote: Someone must have already tried this, but how effective would a (say) 100m long dipole laid down a chalk hill be ? Isn't limestone also the same material as chalk, Are there any CREG mem
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00479.html (10,550 bytes)

246. Re: LF: 9kHz DX with no power supply! (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Wed, 17 Jan 2001 16:05:57 +0100
If you have Real Player, go to: http://www.bbc.co.uk and click on the link to Concrete Ears. It is fascinating. Sorry, I should have pointed you to the News pages. Just take the News link from there
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00510.html (9,425 bytes)

247. LF: 9kHz DX with no power supply! (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Wed, 17 Jan 2001 13:54:57 +0100
If you have Real Player, go to: http://www.bbc.co.uk and click on the link to Concrete Ears. It is fascinating. Briefly this describes huge concrete acoustic dishes built in the 1920s, aimed at liste
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00515.html (9,686 bytes)

248. Re: LF: More on last weekend (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Tue, 16 Jan 2001 15:43:12 +0100
Hi Mike VE1ZZ was akso received in Finland by OH9UFO . You might want to include that also. I feel we also got a good lesson in 136 kHz propagation after solar flares. I sent copies of ARGO pictures
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00534.html (9,839 bytes)

249. LF: More on last weekend (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Tue, 16 Jan 2001 12:05:21 +0100
I have calculated the locator of Larry, VA3LK, as either FN14TQ or FN14UQ, which makes the distance between him and Ko, NL9222, 5731 or 5726km. This is the current world one-way record. Congratulatio
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00538.html (10,531 bytes)

250. Re: LF: RE: More Rugby info (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Mon, 15 Jan 2001 12:26:10 +0100
Does Ruby ever open its doors to visitors? Martin M5CIX When I worked for British Telecom (it was then Post Office Telephones) in the sixties, I managed to get a guiided tour of the Rugby station. We
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00557.html (8,770 bytes)

251. Re: LF: Re: Weekend tests (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Thu, 11 Jan 2001 13:00:30 +0100
I posted info about the tests to: http://www.lwca.org/wwwboard/wwwboard.html but nobody reacted. Do they know? 73 Petr OK1FIG I think you mean: "Do AMRAD know about all of the other tests this weeke
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00659.html (10,135 bytes)

252. LF: Weekend tests (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Thu, 11 Jan 2001 11:21:01 +0100
In the enthusiasm to make the first transatlantic 2-way QSO, it is easy to ignore other useful things that can happen this weekend. Firstly, AMRAD will be doing receive tests from the North Carolina
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00662.html (10,121 bytes)

253. Re: LF: Weekend tests (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Thu, 11 Jan 2001 11:04:48 +0100
Perhaps we should listen (look) for 10 second dot qrss after say 0300Z providing a QSO across the pond has occurred I hope this helps 73 de John VE1ZJ This would certainly be useful but we will have
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00664.html (10,625 bytes)

254. Re: LF: SV: Re: VE1ZZ "M" in Sweden (?) (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Wed, 10 Jan 2001 11:05:05 +0100
It would certainly help if Jack slowed down to 10s/dot - but that requires approx. 5dB higher patience level at the receiving end, hi.. Johan SM6LKM I think there is a case to run some 10s dot tests,
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00687.html (8,789 bytes)

255. LF: Weekend Report 6/7 Jan (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Wed, 10 Jan 2001 10:50:49 +0100
Saturday 6 January 2001 QSO with F6CNI (gave 559, got 56/79). End of QSO spoiled by local QRM my end. Sunday 7 January 2001 Very low noise QSO with I5TGC on QRSS (reports 'O'/'O'). Called IK5ZPV who
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00689.html (8,095 bytes)

256. Re: LF: ARGO Build 113. (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Tue, 09 Jan 2001 17:31:05 +0100
This really is a nice piece of software. It is easy to run, is very sensitive and continues to run when you are working on another program in a foreground window. I really like the easy switch from e
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00714.html (9,394 bytes)

257. Re: LF: Re. QRSS Proceedure (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Tue, 09 Jan 2001 17:07:15 +0100
Thanks for the Qrss explanation,but why repeat T M or O ? Is this just to ensure that it gets through or is O O O more readable than O ? 73s Laurie. Well, normally the T, M or O is sent three times j
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00715.html (8,986 bytes)

258. LF: QRSS procedure (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Tue, 09 Jan 2001 12:31:54 +0100
QRSS can be confusing for anyone new to it, and any errors can be very time-consuming. I have seen people send zero instead of O, wasting several minutes, as well as QTH, power level etc. The idea is
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00729.html (9,320 bytes)

259. LF: Weekend tests (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Tue, 09 Jan 2001 11:13:22 +0100
This weekend, there is the greatest opportunity yet to make the transatlantic two-way. I would like to suggest some procedures to maximise that opportunity and minimise mutual QRM. Please feel free t
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00733.html (10,148 bytes)

260. LF: VE1ZZ seen (score: 1)
Author: "Mike Dennison" <[email protected]>
Date: Tue, 09 Jan 2001 10:35:11 +0100
Good signal from Jack at 0130 this morning. QRM from neighbour's video recorder SMPSU before that. Transmitted all night on 135.919kHz. Mike, G3XDV (IO91VT) http://www.lf.thersgb.net
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00735.html (7,699 bytes)


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