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21. Re: LF: Valve LF amps and tank coil size / voltage rating? (score: 1)
Author: DK1IS <[email protected]>
Date: Sun, 15 Nov 2015 23:46:31 +0100
Hello Chris and group, I failed to store all the postings of this thread - so sorry if some aspects of the following comments should have been already discussed or could be boaring to all of you succ
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-11/msg00353.html (15,915 bytes)

22. LF: MF QSO IZ7EVZ (score: 1)
Author: DK1IS <[email protected]>
Date: Fri, 20 Nov 2015 18:32:29 +0100
Tnx fer QSO 2015-NOV-20 at 1707 UTC on 473,3 kHz, Feliciano! At the beginning you were fb 579 but at the end I lost you in heavy QSB. Nice to get a new station from South Italy anyway - we´ll certain
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-11/msg00476.html (8,345 bytes)

23. Re: LF: MF Christmas CW beacon ? (score: 1)
Author: DK1IS <[email protected]>
Date: Mon, 21 Dec 2015 20:09:45 +0100
Hello Mal, fb CW sigs as usual: "G3KEV merry xmas", 474.200 kHz -97 dBm / S5 @ Perseus, 16 m² Loop to WNW-ESE in JN59VK, S6 @ TS950SD, active whip HE-011 in JN59WK Up to now no sigs from EA5DOM. Seas
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-12/msg00367.html (11,593 bytes)

24. Re: LF: MF Christmas CW beacon ? (score: 1)
Author: DK1IS <[email protected]>
Date: Mon, 21 Dec 2015 21:50:55 +0100
Hello Luis, good audible beacon sigs here: "test test de ea5dom ea5dom, merry xmas, pse email report, tnx to EA5TT, 73 73 de luis k" max - 105 dBm / S4 @ Perseus, 16 m² Loop to SSW-NNE in JN59VK, QSB
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-12/msg00379.html (13,129 bytes)

25. Re: LF: MF Christmas CW bacon ? (score: 1)
Author: DK1IS <[email protected]>
Date: Tue, 22 Dec 2015 22:01:17 +0100
Hello Luis, just a short check: good audible beacon sigs again tonight on 474.400 kHz here in JN59WK. Max S3, QSB min S1 @ TS950SD + active whip HE-011. Two way QSO should be possible anyway. 73, gl
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-12/msg00407.html (12,525 bytes)

26. Re: LF: JT9 Friday evening test. (score: 1)
Author: DK1IS <[email protected]>
Date: Fri, 15 Jan 2016 16:18:34 +0100
Am 15.01.2016 um 14:41 schrieb DK7FC: "Should work on the 3 phase PA using 2x 4CX1500 as suggested by Mal ;-)" Hi Stefan,   certainly nice tubes - but if you´ll ever do this please please please keep
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-01/msg00257.html (11,465 bytes)

27. Re: LF: DK1IS (score: 1)
Author: DK1IS <[email protected]>
Date: Sun, 7 Feb 2016 16:38:29 +0100
Am 07.02.2016 um 15:07 schrieb DK7FC: LF, Big signal from DK1IS in the morning. 73, Stefan Hi Stefan, thanks for the dog boned screenshot - I drove 700 W RF on my Marconi-Ant, 13 m up with topload 4x
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-02/msg00141.html (9,981 bytes)

28. Re: LF: 472 QRSS (score: 1)
Author: DK1IS <[email protected]>
Date: Fri, 26 Feb 2016 19:25:53 +0100
Hi Dave, I´ll be there in DFCW 3 with 4 Hz shift - GM could become my country no. 19 on MF :-) 73 es cul, Tom, DK1IS, JN59WK www.qrz.com/db/DK1IS Am 26.02.2016 um 15:57 schrieb DAVE PICK: If anyone i
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-02/msg00394.html (10,034 bytes)

29. Re: LF: 472 QRSS (score: 1)
Author: DK1IS <[email protected]>
Date: Fri, 26 Feb 2016 23:58:19 +0100
Hi Dave, thank you for our two QSOs on 476.2 kHz: 2016 Feb 26, 2153-2213 UTC, QRSS 3/DFCW 3, ur sigs fb OOO, audible here in my city QTH JN59WK with RX 1001 and active whip in heavy local QRM. 2016 F
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-02/msg00407.html (10,517 bytes)

30. Re: VLF: T106-52 cores on VLF (score: 1)
Author: DK1IS <[email protected]>
Date: Thu, 28 Apr 2016 11:09:14 +0200
Hi Stefan, I think the problem are the airgaps between the cores. Perhaps you´ll get a little better result if you grind down the coatings at the inner front ends of the cores. Although its nearly im
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-04/msg00352.html (14,660 bytes)

31. Re: VLF: T106-52 cores on VLF (score: 1)
Author: DK1IS <[email protected]>
Date: Thu, 28 Apr 2016 19:08:58 +0200
Hi Clemens, I have measured a big air core coil of approx. 3.37mH - once w/o ferrites inside - once with two identical ferrite cores (µi about 125) spaced by 2cm - once with one core of the same type
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-04/msg00360.html (15,032 bytes)

32. LF: Re: [rsgb_lf_group] [630m] 60 Watt new beacon is now QRV and on-the air (score: 1)
Author: DK1IS <[email protected]>
Date: Wed, 11 May 2016 23:54:08 +0200
Hi Geir, a short check of the European Perseus sites (don´t know whether you have access too) shows that you can only be heared at SM0GOJ, about 390 km ENE from you. At present your signal there is b
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-05/msg00077.html (14,217 bytes)

33. Re: LF: A transductor instead of a traditional variometer on VLF/LF/MF? Done! (score: 1)
Author: DK1IS <[email protected]>
Date: Mon, 16 May 2016 10:53:22 +0200
Hi Stefan, The only thing that is can't understand: If this is a known circuit, why does no one of use it for LF and MF for an easy resonance tuning?????? From my former experiences with my students:
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-05/msg00132.html (12,230 bytes)

34. Re: LF: A transductor instead of a traditional variometer on VLF/LF/MF? Done! (score: 1)
Author: DK1IS <[email protected]>
Date: Mon, 16 May 2016 10:56:49 +0200
Hi Wolf, Am 15.05.2016 um 14:12 schrieb Wolfgang Büscher: Interesting application .. but wouldn't the operation of such a simple transductor (wound on a single ferrite core) depend a lot on the 'RF d
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-05/msg00133.html (13,925 bytes)

35. Re: LF: A transductor instead of a traditional variometer on VLF/LF/MF? Done! (score: 1)
Author: DK1IS <[email protected]>
Date: Mon, 16 May 2016 12:02:16 +0200
Am 16.05.2016 um 11:20 schrieb Wolfgang Büscher: Or, depending on how the ring core is oriented in the "mostly air core" coil, the AC flux lines would run perpendicular to the DC flux, which also eli
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-05/msg00135.html (13,981 bytes)

36. Re: LF: RE: Re: Cumiana OOS (score: 1)
Author: DK1IS <[email protected]>
Date: Fri, 24 Jun 2016 11:55:21 +0200
Am 24.06.2016 um 10:30 schrieb DK7FC: Ignition coils, well, they may handle the voltage but i think the winding will become to warm at 30 mA 24/7. But the main problem would be that i need a certain
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-06/msg00091.html (10,989 bytes)

37. LF: SAQ reception in JN59WK (score: 1)
Author: DK1IS <[email protected]>
Date: Sun, 3 Jul 2016 15:00:19 +0200
Hi group, good copy of the 1200 UTC SAQ transmission here in Eastern Bavaria (JN59WK) as usual. QRG was about 17.185 kHz. At home with SPM 30 with filter 24 Hz and active whip HE 011: -71 dBm resp. 0
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-07/msg00014.html (9,787 bytes)

38. LF: Re: Using online SDR's issue. (score: 1)
Author: [email protected]
Date: Sat, 27 Aug 2016 11:29:41 +0200
  Hi all, Andy posted his original request at the Yahoo lf group - can any blacksheep help him concerning free VACs for Win 8? 73, Tom, DK1IS -- Danke Tom. I have been trying to understand if it is m
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-08/msg00151.html (12,947 bytes)

39. LF: Re: LA1BCN on 630m, earth dipole (score: 1)
Author: DK1IS <[email protected]>
Date: Sun, 28 Aug 2016 15:13:20 +0200
Hello John, having installed the latest remote RX system only one week ago I´m still in a very early state of a learning process ;-). First of all the configuration used here: Living in an urban regi
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-08/msg00157.html (14,147 bytes)

40. LF: Re: [rsgb_lf_group] G3WCB CLE Transmission [ LA1BCN on 630m] (score: 1)
Author: DK1IS <[email protected]>
Date: Sun, 28 Aug 2016 22:58:12 +0200
Hi all you beaconeers, up to now (2040 UTC) no traces from LA1BCN (476.5 kHz), LA3EQ (476.4 kHz) and G4WCB (476.2 kHz) her in JN59WK in spite of QRN being less than yesterday, spikes now about S5 max
/rsgb_lf_group-archives/html/rsgb_lf_group/2016-08/msg00160.html (13,787 bytes)


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