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21. LF: Re: Antenna tests on 136k and 503k - Results (score: 1)
Author: "James Moritz" <[email protected]>
Date: Sun, 09 Dec 2007 15:27:21 +0100
Dear Dave, Gary, Jay, LF Group, Thanks for the comments - Yes, with a bit more work I hope to convert this into a publishable article. As far as achieving the "legal limit" ERP goes, the UK licence r
/rsgb_lf_group-archives/html/rsgb_lf_group/2007-12/msg00094.html (11,657 bytes)

22. LF: Antenna tests on 136k and 503k - Results (score: 1)
Author: "James Moritz" <[email protected]>
Date: Sun, 09 Dec 2007 14:17:45 +0100
Dear LF Group, I have now finished the antenna experiments that I started earlier this week - this is a summary of the results. The idea of the tests was to measure the effects on LF/MF antenna perfo
/rsgb_lf_group-archives/html/rsgb_lf_group/2007-12/msg00104.html (15,024 bytes)

23. LF: Re: [500] RE: M0BMU/P on 503.8 (score: 1)
Author: "James Moritz" <[email protected]>
Date: Thu, 06 Dec 2007 02:57:02 +0100
Dear Lubos, Mike, Graham, LF Group, Thanks for the reports - I was doing some antenna tests, as part of the programme in my Special Research Permit application for 500k. The 1/2-space DFCW setting is
/rsgb_lf_group-archives/html/rsgb_lf_group/2007-12/msg00188.html (11,157 bytes)

24. LF: Re: Re: Antenna tests on 136k and 503k - Results (score: 1)
Author: "James Moritz" <[email protected]>
Date: Mon, 10 Dec 2007 01:55:59 +0100
Dear LF Group, Thanks for the comments... indeed I have just re-calculated the ERP based on values of Rrad obtained using a NEC-based antenna simulator (MMANA-GAL). This should give a more accurate v
/rsgb_lf_group-archives/html/rsgb_lf_group/2007-12/msg00212.html (14,165 bytes)

25. LF: Re: Re: Re: [500] RE: M0BMU/P on 503.8 (score: 1)
Author: "James Moritz" <[email protected]>
Date: Thu, 06 Dec 2007 15:19:02 +0100
Dear Graham, LF Group, I think that is the correct locator - will check later Hopefully, the antenna won't have a chance to dry out and need re-tuning! The mains power is via about 130m of cable to t
/rsgb_lf_group-archives/html/rsgb_lf_group/2007-12/msg00268.html (10,093 bytes)

26. LF: Re: [500] Signal on 503810 (score: 1)
Author: "James Moritz" <[email protected]>
Date: Thu, 20 Dec 2007 14:30:31 +0100
Dear Lubos, LF Group, Thanks for the screen shot - yes, that is me doing some more antenna experiments... Cheers, Jim Moritz 73 de M0BMU -- Original Message -- From: [email protected] Lubomír B
/rsgb_lf_group-archives/html/rsgb_lf_group/2007-12/msg00457.html (10,965 bytes)

27. Re: LF: Antenna tests on 136k and 503k - Results (score: 1)
Author: "James Moritz" <[email protected]>
Date: Wed, 12 Dec 2007 02:51:56 +0100
Dear Rik, LF Group, I think the main effect of having the elevated loading coil is too reduce the voltage on the downlead of the antenna - this would have two advantages: -Reduced voltage on the down
/rsgb_lf_group-archives/html/rsgb_lf_group/2007-12/msg00513.html (13,269 bytes)

28. LF: LF Antenna Effective height comparison (score: 1)
Author: "James Moritz" <[email protected]>
Date: Mon, 24 Dec 2007 21:05:00 +0100
Dear LF Group, Didn't work first time, so try again... -- Original Message -- From: [email protected] James Moritz To: [email protected] [email protected] Sent: Monda
/rsgb_lf_group-archives/html/rsgb_lf_group/2007-12/msg00529.html (12,894 bytes)

29. LF: Re: E-field probes. (score: 1)
Author: "James Moritz" <[email protected]>
Date: Mon, 24 Dec 2007 17:40:08 +0100
Dear David, LF Group, There are plenty of broadband active whip designs that will work up to 30MHz or more, mostly depending on the amplifier bandwidth. I imagine an issue with using such a design on
/rsgb_lf_group-archives/html/rsgb_lf_group/2007-12/msg00548.html (11,287 bytes)

30. LF: M0BMU WOLF beacon (score: 1)
Author: "James Moritz" <[email protected]>
Date: Sat, 26 Jan 2008 22:41:31 +0100
Dear LF Group, I will be running the beacon again tonight - WOLF 20 mode, 503.800kHz, from about 2200utc. Cheers, Jim Moritz 73 de M0BMU
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-01/msg00024.html (11,832 bytes)

31. Re: LF: M0BMU WOLF beacon (score: 1)
Author: "James Moritz" <[email protected]>
Date: Mon, 21 Jan 2008 23:20:56 +0100
Dear LF Group, The WOLF beacon is now running again from 2200utc. I am now using WOLF 20 mode, "by popular request". Frequency is 503.800 as before - any reports welcome, or comparison with the previ
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-01/msg00069.html (11,672 bytes)

32. LF: Re: OR7T / M0BMU WOLF Beacon (score: 1)
Author: "James Moritz" <[email protected]>
Date: Tue, 29 Jan 2008 23:28:10 +0100
Dear Rik, LF Group, Congratulations on your first QSOs on 500k; I think I just missed you on 503.0k - I heard the end of a call at quite good strength around 2200utc and then no more. But there will
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-01/msg00100.html (11,284 bytes)

33. Re: LF: M0BMU WOLF beacon (score: 1)
Author: "James Moritz" <[email protected]>
Date: Wed, 23 Jan 2008 13:03:02 +0100
Dear Jay, LF Group, Normally I leave the beacon running until the morning - around 0900utc. I hope to be putting out some kind of signal most nights until my 500k experimental permit expires on Febru
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-01/msg00135.html (11,735 bytes)

34. LF: M0BMU WOLF beacon (score: 1)
Author: "James Moritz" <[email protected]>
Date: Sun, 20 Jan 2008 23:24:47 +0100
Dear LF Group, The WOLF 10 beacon is now (2220utc) running again on 503.800kHz Cheers, Jim Moritz 73 de M0BMU
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-01/msg00164.html (9,391 bytes)

35. LF: M0BMU WOLF Beacon (score: 1)
Author: "James Moritz" <[email protected]>
Date: Wed, 30 Jan 2008 23:12:35 +0100
Dear LF Group The M0BMU WOLF 20 beacon is now (2210utc) running again on 503.800kHz. Any reports welcome. Cheers, Jim Moritz 73 de M0BMU
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-01/msg00177.html (11,029 bytes)

36. LF: M0BMU WOLF beacon (score: 1)
Author: "James Moritz" <[email protected]>
Date: Thu, 24 Jan 2008 22:23:21 +0100
Dear LF Group, Thanks for the reception reports from last night. I will be runing the WOLF 20 beacon again tonight on 503.800kHz from about 2200utc. Cheers, Jim Moritz 73 de M0BMU
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-01/msg00208.html (11,644 bytes)

37. Re: LF: M0BMU WOLF beacon (score: 1)
Author: "James Moritz" <[email protected]>
Date: Sun, 27 Jan 2008 22:36:01 +0100
Dear Wolf, LF Group, Thanks for the report from last night. I will run the beacon again on 503.800kHz, WOLF 20 mode, from around 2200utc. Cheers, Jim Moritz 73 de M0BMU
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-01/msg00243.html (11,953 bytes)

38. LF: Re: WOLF BEACON 502.800 - M0BMU WOLF beacon (score: 1)
Author: "James Moritz" <[email protected]>
Date: Sat, 19 Jan 2008 23:25:35 +0100
Dear Graham, LF Group, Decoding your WOLF signal now - frequency appears to be 502.7980kHz, which is quite a long way off nominal for this mode. It could be down to either TX frequency accuracy, or s
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-01/msg00304.html (14,952 bytes)

39. Re: LF: WOLF Beacon (score: 1)
Author: "James Moritz" <[email protected]>
Date: Fri, 18 Jan 2008 23:01:51 +0100
Dear Jean-Pierre, John, Hartmut, LF Group, Thanks for looking out for the beacon signal last night. I will run rhe beacon again tonight from about 2200 (503.8kHz, WOLF 10) - at least on 500kHz you do
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-01/msg00343.html (10,855 bytes)

40. LF: G3ZWH e-mail? (score: 1)
Author: "James Moritz" <[email protected]>
Date: Sun, 20 Jan 2008 22:14:42 +0100
Dear LF Group, Does anyone have an e-mail address for Doug, G3ZWH? I had a QSO with him earlier, and said I would send him some info. Cheers, Jim Moritz 73 de M0BMU
/rsgb_lf_group-archives/html/rsgb_lf_group/2008-01/msg00360.html (8,788 bytes)


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