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261. Re: LF: QRV 137.700 KHz (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Sun, 01 Mar 2009 11:28:19 +0100; Marco, I saw you on DF6NM's grabber yesterday calling me on QRSS3, and saw DK4U working you this morning (1/3), but I cannot see a trace of your signal here. Please let me know if you want to try a Q; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-03/msg00243.html (8,498 bytes)
262. Re: LF: G3XDV F4DTL (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Sat, 21 Mar 2009 13:41:55 +0100; Thanks, Nicolas. Attached is a spectrogram of your signal. Mike, G3XDV == The following section of this message contains a file attachment prepared for transmission using the Internet MIME message fo; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-03/msg00281.html (8,986 bytes)
263. Re: LF: Ropex Info? (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Fri, 20 Mar 2009 18:34:30 +0100; I have posted the documents at: http://:lf.apersonalguide.co.uk/ropex Mike, G3XDV ==; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-03/msg00288.html (9,479 bytes)
264. LF: Ropex - oops (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Fri, 20 Mar 2009 18:38:26 +0100; That URL should be: http://lf.apersonalguide.co.uk/ropex that is without the extra colon! Mike, G3XDV ==; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-03/msg00297.html (7,556 bytes)
265. Re: LF: 136 kHz - Nostalgia (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Mon, 13 Apr 2009 11:57:24 +0100; There are two main reasons for the decline in activity on 136kHz. Firstly, most of those interested in experimenting at low frequencies have migrated to 500kHz. This is exactly what happened to 73kHz; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-04/msg00092.html (10,045 bytes)
266. Re: LF: Re: Re: 500kHz Portable (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Tue, 12 May 2009 10:29:28 +0100; This is quite wrong. Any slope downwards will reduce the effective height of a Marconi. Since ERP is a function of the square of the effective height this is extremely important. An umbrella is far; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-05/msg00263.html (10,792 bytes)
267. LF: Eclipse (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Fri, 24 Jul 2009 14:42:48 +0100; Newer members of this group may be interested in the LF radio tests done during the European solar eclipse in 1999. See: http://homepage.ntlworld.com/mike.dennison/index/lf/gallery/eclipse.ht m Mike,; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-07/msg00190.html (10,191 bytes)
268. LF: Test now 136.320 (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Fri, 20 Nov 2009 18:32:20 +0100; No problem. Now transmitting on 136.320kHz Mike, G3XDV ==; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-11/msg00132.html (9,409 bytes)
269. LF: More tests on 136k (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Sat, 21 Nov 2009 16:23:24 +0100; I am testing until about 2230UTC using QRSS60 on 136.318kHz today (Saturday). Mike, G3XDV ==; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-11/msg00157.html (7,630 bytes)
270. LF: Tests concluded (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Fri, 20 Nov 2009 20:16:21 +0100; I have finished testing on 136kHz for tonight. Mike, G3XDV ==; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-11/msg00276.html (7,452 bytes)
271. LF: Test transmissions (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Fri, 20 Nov 2009 17:33:58 +0100; After a major refurbishment of my lounge/office/shack, I have finally rebuilt my 136kHz station. To check reliability of the Tx at low speeds, I am transmitting using QRSS30 on 137.776kHz this evenin; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-11/msg00287.html (8,090 bytes)
272. Re: LF: DX test 136.318kHz (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Mon, 30 Nov 2009 22:13:36 +0100; Roman, Thanks but I get an error message on that web address. Mike ==; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-11/msg00288.html (9,280 bytes)
273. LF: DX test 136.318kHz (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Mon, 30 Nov 2009 19:01:24 +0100; I will be transmitting "XDV" overnight (1800 - 0900 UTC) tonight using QRSS60 on 136.3180kHz. DX reports are welcome. Mike. G3XDV ==; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-11/msg00414.html (8,189 bytes)
274. Re: LF: Re: 500kHz attenuation graphs? (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Wed, 04 Nov 2009 18:19:03 +0100; This recommendation is available for 35 Swiss francs from: http://www.itu.int/rec/R-REC-P.368-7-199203-S/en Mike, G3XDV ==; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-11/msg00636.html (10,775 bytes)
275. LF: Test 136.318 (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Fri, 27 Nov 2009 18:11:13 +0100; I am testing this evening by sending 'X' at QRSS120 on 136.3180kHz. If all goes well I will transmit until about 2230UTC. This is a preliminary soak test prior to some overnight transmissions later i; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-11/msg00771.html (8,987 bytes)
276. Re: LF: 'LF Today' Errors (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Mon, 02 Nov 2009 18:25:41 +0100; Chris, group, If you have spotted any errors or have any corrections / updates / suggestions, please send them to me. I am not sure when / if the RSGB will want a new edition, but it's likely that I; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-11/msg00817.html (9,054 bytes)
277. Re: LF: DX test 136.318kHz (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Mon, 30 Nov 2009 22:10:57 +0100; Thank you for the report. Your QRSS3 signal has been 'O' here for the last two afternoons around 1700UTC. Mike ==; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-11/msg00826.html (9,196 bytes)
278. Re: AW: LF: "Gain" between qrss3 and qrss10? (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Tue, 15 Dec 2009 11:54:52 +0100; This is certainly theoretically possible, but only if 'ground-wave' is being used. If you are using sky-wave - as all intercontinental QSOs have so far - you are limited by the length of time that t; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-12/msg00038.html (13,338 bytes)
279. LF: XDV 136.318kHz (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Thu, 03 Dec 2009 21:02:45 +0100; I will be transmitting 'XDV' overnight tonight using QRSS60 on 136.3180kHz. Mike, G3XDV ==; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-12/msg00084.html (7,522 bytes)
280. LF: XDV beacon (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Sat, 26 Dec 2009 18:45:38 +0100; I will be transmitting 'XDV' on 136.31975kHz overnight. It looks another station is already on 136.319kHz - probably DJ8WX. Mike, G3XDV ==; /rsgb_lf_group-archives/html/rsgb_lf_group/2009-12/msg00191.html (7,888 bytes)

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