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Total 1197 documents matching your query.

1. LF: RE: [rsgb_lf_group] ground conductivity (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Wed, 9 Jul 2014 13:15:20 +0000
Hi Alan, have a look here : http://hamwaves.com/antennas/gnd-sigma/vlf_mf_ground_conductivity_atlas.pdf 73, Rik ON7YD - OR7T Van: [email protected] [[email protected]] Ver
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-07/msg00034.html (16,713 bytes)

2. LF: RE: Re: T5MF 600m OPERA OP8 5863 km GENUINE !! (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Thu, 11 Sep 2014 06:52:47 +0000
Hi Jay, maybe the Opera signals traveled through a Einstein-Rosen bridge ;-) 73, Rik ON7YD - OR7T Van: [email protected] [[email protected]] namens jrusgrove@comcast
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-09/msg00039.html (24,612 bytes)

3. LF: RE: [rsgb_lf_group] Capture ID please (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Mon, 29 Sep 2014 19:46:45 +0000
Hi Gary, my guess is M0DSZ in IO82LU (http://www.hamqth.com/M0DSZ) 73, Rik ON7YD - OR7T Van: [email protected] [[email protected]] Verzonden: maandag 29 september 2014 21:
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-09/msg00159.html (16,235 bytes)

4. LF: RE: DLF 153 kHz QRT (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Fri, 19 Dec 2014 18:44:28 +0000
Hi Stefan, for the broadcasters LF (and MF) is the past. LF / MF transmitters and their antennas are very expensive to maintain and these days the audience is small. More and more LF / MF broadcast s
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00166.html (20,193 bytes)

5. RE: LF: RE: DLF 153 kHz QRT (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Fri, 19 Dec 2014 22:23:32 +0000
Hi Stefan, any chance to use the Donebach antenna on 8.9kHz? Even at that frequency the radiation resistance might be close to 0.1 Ohm! 73, Rik ON7YD - OR7T Van: [email protected] [o
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00173.html (15,277 bytes)

6. LF: RE: Low pass filter 1 kW 136k 472 k what components to choose? (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Sun, 21 Dec 2014 15:55:35 +0000
Hello Hans Albrecht, I do use T200-2 cores for 472kHz. At 600W output a single core gets lukewarm at good SWR but rather hot at SWR > 2. As I had a stock of T200-2's available I did glue 2 T200-2's,
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00197.html (12,255 bytes)

7. RE: LF: Re: Japan on 475 kHz. (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Mon, 22 Dec 2014 19:47:02 +0000
Stefan, some patience might help. Wait for the next sunspot minimum. In 2008 transatlantic WSPR was very common, even for stations with just some 100 mW ERP. 73, Rik ON7YD Van: owner-rsgb_lf_group@bl
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00219.html (14,125 bytes)

8. RE: LF: Re: Japan on 475 kHz. (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Mon, 22 Dec 2014 22:40:20 +0000
Hi Stefan, I wasn't saying that propagation on 472kHz is the same as on 1800kHz. For sure it isn't. Just that the current winter condx are far worse than the 2008-2009 season was, when lots of EU WSP
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00223.html (16,277 bytes)

9. RE: LF: xmas CW bacon on 630m !! (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Tue, 23 Dec 2014 21:28:34 +0000
Hi Stefan, your beacon is booming S9 here. Also good CW activity at the lower band end. About beacon band: 474-475kHz seems OK although the upper end comes a bit close to the digital mode segment (la
/rsgb_lf_group-archives/html/rsgb_lf_group/2014-12/msg00244.html (14,224 bytes)

10. LF: digital transmission on 472.7 kHz (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Sun, 4 Jan 2015 19:30:10 +0000
I just noticed some kind of digital transmission on 472.7 kHz, but couldn't figure out what mode. Anyone to claim this transmission? 73, Rik ON7YD - OR7T
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-01/msg00107.html (9,354 bytes)

11. RE: LF: digital transmission on 472.7 kHz (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Sun, 4 Jan 2015 19:55:14 +0000
Hi Stefan, what I saw/heard was not hell and also on a very different frequency (472.7 kHz). 73, Rik ON7YD - OR7T Van: [email protected] [[email protected]] namens D
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-01/msg00109.html (11,004 bytes)

12. LF: RE: AW: digital transmission on 472.7 kHz (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Sun, 4 Jan 2015 21:07:28 +0000
Hello Daniel, it was not your transmission I saw but DL6TY in PSK31 on 472.7kHz. But I you let me know when you rae transmitting I can give it a try. 73, Rik ON7YD - OR7T Van: owner-rsgb_lf_group@bla
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-01/msg00113.html (13,323 bytes)

13. LF: RE: Andre Kesteloot N4ICK sk (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Wed, 7 Jan 2015 14:29:51 +0000
I am sorry to hear about the passing of André, N4ICK. I did meet André serveral times when he was in Belgium to visit his relatives and it was always a pleasure to talk with him. Often about technica
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-01/msg00163.html (21,778 bytes)

14. LF: RE: 477.7 kHz CW (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Sat, 17 Jan 2015 22:13:57 +0000
Hello Joe, a faint trace is starting to pop up on 477.7 73, Rik ON7YD - OR7T ________________________________________ Van: [email protected] [[email protected]] name
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-01/msg00344.html (11,384 bytes)

15. RE: LF: RE: 477.7 kHz CW (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Sat, 17 Jan 2015 22:46:35 +0000
Joe, a screenshot: https://www.dropbox.com/s/d34pps7up1eo2oj/Schermafdruk%202015-01-17%2022.38.47.png?dl=0 73, Rik ON7YD - OR7T ________________________________________ Van: owner-rsgb_lf_group@black
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-01/msg00346.html (12,820 bytes)

16. RE: LF: RE: 477.7 kHz CW (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Sat, 17 Jan 2015 23:27:53 +0000
Hello Joe, now peaking 529 but a lot of QSB. 73, Rik ON7YD - OR7T ________________________________________ Van: [email protected] [[email protected]] namens jcraig@m
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-01/msg00350.html (12,627 bytes)

17. RE: LF: 477.7 kHz CW (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Sat, 17 Jan 2015 23:45:27 +0000
Joe, right now your signal is down, but I will listen for you the next 30 minutes or so before going to bed. 73, Rik ON7YD - OR7T ________________________________________ Van: owner-rsgb_lf_group@bla
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-01/msg00355.html (12,226 bytes)

18. RE: LF: 477.7 kHz CW (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Sun, 18 Jan 2015 00:03:24 +0000
Joe, the signal is building up! I will listen for your CQ until 00:30 UTC. 73, Rik ON7YD - OR7T ________________________________________ Van: [email protected] [owner-rsgb_lf_group@b
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-01/msg00358.html (12,828 bytes)

19. RE: LF: 477.7 kHz CW (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Sun, 18 Jan 2015 09:55:26 +0000
Hello Joe, your signal was down in the noise again, I could still see the trace but no aural copy. I had a couple of good aural copy periods each 5 to 10 minutes long. If we had catched one of these
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-01/msg00364.html (14,477 bytes)

20. LF: RE: SV8CS 476.5 QRSS NOW (score: 1)
Author: Rik Strobbe <[email protected]>
Date: Sun, 18 Jan 2015 18:34:49 +0000
Hello Spiros, your signal is solid O and most of the time audible. 73, Rik ON7YD - OR7T Van: [email protected] [[email protected]] namens SV8CS-Spiros Chimarios [zan
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-01/msg00380.html (14,030 bytes)


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