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141. Re: LF: Skin-effect cores, from DK 8 ND (score: 1)
Author: "jannsen" <[email protected]>
Date: Sat, 31 Aug 2002 17:21:27 +0200
Hans-Albrecht Haffa schrieb: Lieber Uwe, hier also meine Qellen: - Eine Seite aus dem Repetitorium in "Siemens Compüonents 22 ( 1984) Heft 5 - Fritz Vilbig: Lehrbuch der Hochfrequenztechnik, Vierte A
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-08/msg00001.html (8,613 bytes)

142. LF: R: LF beacon from North Italy. (score: 1)
Author: "jannsen" <[email protected]>
Date: Fri, 30 Aug 2002 00:30:04 +0200
Hallo to all, i inform all the LF comunity that is now on the air a beacon located here in North Italy, few kilometers west of Garda Lake, at the top of a mountain, 980 meters above sea level. The fr
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-08/msg00005.html (9,861 bytes)

143. Re: LF: toroid cores, from DK 8 ND (score: 1)
Author: "jannsen" <[email protected]>
Date: Thu, 29 Aug 2002 22:37:25 +0200
Hans-Albrecht Haffa schrieb: - Look to Curves explaning the skin effect, that means that diameter or thickness of the copper is restricted, depending on the frequency used. Hi Hans, where can I look
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-08/msg00007.html (8,425 bytes)

144. Re: LF: toroid cores (score: 1)
Author: "jannsen" <[email protected]>
Date: Sat, 24 Aug 2002 22:47:24 +0200
Rik Strobbe schrieb: Hello LF group, I am trying to make a list of toroid core material that is suitable for 136kHz power applications, for impedance transformers and low-pass filters. I would apprec
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-08/msg00023.html (9,068 bytes)

145. Re: LF: Re: An Excel sheet to play with toroids (score: 1)
Author: "jannsen" <[email protected]>
Date: Sun, 11 Aug 2002 19:58:47 +0200
Stewart Bryant schrieb: There is something else strange about the setup, because I could only correctly save the file (and open it with excel) when I used IE to get it. Using Netscape did not save it
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-08/msg00111.html (10,846 bytes)

146. Re: LF: An Excel sheet to play with toroids (score: 1)
Author: "jannsen" <[email protected]>
Date: Sat, 10 Aug 2002 22:42:46 +0200
Alberto di Bene schrieb: Today I found in my archived files an Excel sheet that computes the number of turns for a given inductance on a given core, and viceversa, made by WA1ION. In my opinion it co
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-08/msg00125.html (11,725 bytes)

147. Re: LF: SM6LKM Jason beacon QSY (score: 1)
Author: "jannsen" <[email protected]>
Date: Fri, 9 Aug 2002 01:20:49 +0200
Johan Bodin schrieb: Dear Jim, thanks for "listening". Thanks for the suggestion. I will put it on 7000.013 kHz and also add a class D "pair of boots" (a 74AC00 gate with series resonant tank :-). Un
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-08/msg00149.html (10,558 bytes)

148. Re: LF: RU6LWZ (score: 1)
Author: "jannsen" <[email protected]>
Date: Sun, 29 Sep 2002 00:46:00 +0200
Alexander S. Yurkov schrieb: Hi, Group. RU6LWZ QRSS120 test will be on freq 137.000 today started at 15z 73 de RA9MB/Alex http://www.qsl.net/ra9mb Hi Alex, I have had a nice x-band QSO with Vlad/RU6L
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-09/msg00021.html (8,550 bytes)

149. Re: LF: RU6LA (score: 1)
Author: "jannsen" <[email protected]>
Date: Sun, 29 Sep 2002 00:46:02 +0200
José Manuel schrieb: Hi to all: At 19.46 UTC I saw on 137000-QRSS3 the next transmission: QRZ 370 RU6LA K I think that couldn´t be transmitted from RU6LWZ site. 73 de José Manuel, EA1PX The frequency
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-09/msg00022.html (9,279 bytes)

150. Re: LF: Signal report (score: 1)
Author: "jannsen" <[email protected]>
Date: Fri, 27 Sep 2002 15:19:03 +0200
José Manuel schrieb: Hi to the Group: I´ll appreciate any report of my signals on 137705 Hz. Radiated power: 1 mW. 73 de José Manuel, EA1PX. Hi Jose Manuel, what kind of emission is it? saludos de Uw
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-09/msg00038.html (8,476 bytes)

151. LF: the bucket (score: 1)
Author: "jannsen" <[email protected]>
Date: Tue, 24 Sep 2002 23:36:32 +0200
Hi all, I discovered a stable 30-litre-bucket in our garden. material: PVC. color: black. however vy soiled with a mixture of garden earth and chicken excrement. after cleaning it was wound immediate
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-09/msg00062.html (9,725 bytes)

152. Re: LF: Signal on 135.923KHz (score: 1)
Author: "jannsen" <[email protected]>
Date: Sun, 15 Sep 2002 22:47:06 +0200
Brian Rogerson schrieb: Does anyone want to claim the signal on 135.923KHz or is it a commercial station? 73, Brian 73 Brian CT1DRP IN51QD 41 09 58N 08 39 11W http://homepage.esoterica.pt/~brian Hi B
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-09/msg00143.html (8,902 bytes)

153. LF: who was it ? (score: 1)
Author: "jannsen" <[email protected]>
Date: Sun, 8 Sep 2002 00:21:54 +0200
Hi all, 07.09.2002 at abt 1210utc on 137,704 kHz I copied the tail of a qrss transmission. nothing else. see attachment. S+N/N = -51dB/-74dB. BTW. Gus/SM6BHZ are you on this reflector ? regards Uwe/d
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-09/msg00188.html (8,269 bytes)

154. Re: LF: GI pedition (score: 1)
Author: "jannsen" <[email protected]>
Date: Sun, 8 Sep 2002 00:21:53 +0200
Dave Sergeant schrieb: ...... It looks like quite a few 136 chaps are now to be found on 5MHz. I have just had my first few (CW) QSOs on the band and these include Derek G3HEJ, Tom G3OLB, and Steve G
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-09/msg00189.html (8,741 bytes)

155. Re: LF: Argo-SpecLab (score: 1)
Author: "jannsen" <[email protected]>
Date: Tue, 3 Sep 2002 02:19:01 +0200
Alberto di Bene schrieb: About Uwe's question, frankly I have no answer... Uwe, how does that level meter behave when no program (neither Argo nor Speclab) is running ? That could give some hints. 73
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-09/msg00215.html (9,773 bytes)

156. Re: LF: vicious circle in German, from DK 8 ND (score: 1)
Author: "jannsen" <[email protected]>
Date: Mon, 28 Oct 2002 00:36:06 +0100
Hans-Albrecht Haffa schrieb: Lieber Uwe, dieses Problem ist bei der Berechnung von Resonanzwandlerschaltnetzteilen gründlich untersucht worden. Der Kennwiderstand eines Schwingkreises darf minimal de
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-10/msg00064.html (12,462 bytes)

157. LF: vicious circle (score: 1)
Author: "jannsen" <[email protected]>
Date: Sat, 26 Oct 2002 20:02:51 +0200
Hi All, I have got a theoretical problem: if I considerably change the output pwr of any tx - sw or lf - I have to readjust the matching equipment. more pwr means less inductivity to readjust the res
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-10/msg00104.html (9,886 bytes)

158. Re: LF: Whoops 137.31 self-inflicted (score: 1)
Author: "jannsen" <[email protected]>
Date: Thu, 3 Oct 2002 17:56:07 +0200
James Moritz schrieb: A while ago, I had a problem with a weak FSK signal around 137.4kHz - it turned out to be a 3rd order intermod between the "DCF" stations on 138.83 and 128.93, and DDH47 on 147.
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-10/msg00356.html (10,124 bytes)

159. Re: LF: DBF39 phase jump experiment (score: 1)
Author: "jannsen" <[email protected]>
Date: Fri, 29 Nov 2002 01:43:21 +0100
[email protected] schrieb: DCF49 as 129930.015Hz and DBF39 as 138830.033Hz. They seem to be stable at least on a 10mHz scale, but we currently don't know whether they are free-running or somehow l
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-11/msg00032.html (9,147 bytes)

160. Re: LF: RE: Argo V1 build 130 released (score: 1)
Author: "jannsen" <[email protected]>
Date: Mon, 18 Nov 2002 19:02:13 +0100
Gasparik Richard schrieb: Hi all... After the installation and start of the new version of the Argo - nothing. I doesn't work on my comp. It's for the first time that I have a problem with Argo. It's
/rsgb_lf_group-archives/html/rsgb_lf_group/2002-11/msg00128.html (8,801 bytes)


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