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Total 325 documents matching your query.

301. Re: LF: Re: "T" versus "L"aerial (score: 1)
Author: "Dick Rollema" <[email protected]>
Date: Sun, 04 Jan 2004 15:29:15 +0100
To All from PA0SE Bryan, G3GVB wrote: Then the simulation must surely be wrong.! I spent a long time reading a 160/80 m antenna book by ON4 ?? before realising that the performance of various antenna
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-01/msg00098.html (14,405 bytes)

302. LF: TA test PA0SE (score: 1)
Author: "Dick Rollema" <[email protected]>
Date: Sat, 03 Jan 2004 14:22:25 +0100
To All from PA0SE When it stays dry I intend to do some QRSS120 beaconing on 135922kHz, starting at about 2200 UTC today. 73, Dick, PA0SE
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-01/msg00099.html (7,917 bytes)

303. RE: LF: Re: "T" versus "L"aerial (score: 1)
Author: "Dick Rollema" <[email protected]>
Date: Sat, 03 Jan 2004 12:30:09 +0100
To All from PA0SE, Mike, PC4M, wrote: At 02:50 1-1-04, you wrote: Dear Dick / Bob and Lofers, Does the computer calculate the earth losses in the return path from the aerial system to the transmitter
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-01/msg00100.html (15,067 bytes)

304. LF: T/A success for DF6NM (score: 1)
Author: "Dick Rollema" <[email protected]>
Date: Sat, 03 Jan 2004 12:36:24 +0100
Dear Markus, It seems you made it over the Atlantic. Congratulations! And that with a miniMal power of 170 mW! Am I right that you are the second continental station after CT1DRP that crossed the Atl
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-01/msg00101.html (9,311 bytes)

305. LF: VO1NA beaconing (score: 1)
Author: "Dick Rollema" <[email protected]>
Date: Sun, 29 Feb 2004 13:18:42 +0100
To All from PA0SE For the second night in succession I got readable traces of Joe's signal on two of the half-hour captures. The 06.34.46 UTC one is partly corrupted by the sidebands of DCF39 data tr
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-02/msg00068.html (8,455 bytes)

306. LF: VO1NA beaconing (score: 1)
Author: "Dick Rollema" <[email protected]>
Date: Sat, 28 Feb 2004 19:33:25 +0100
To All from PA0SE, As already during several nights before I had the receiver and computer running last night, monitoring VO1NA's signal. Screenshots were made every 30 minutes. Only the one of 01.06
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-02/msg00069.html (8,405 bytes)

307. Re: LF: Re: VO1NA QRV again (score: 1)
Author: "Dick Rollema" <[email protected]>
Date: Mon, 23 Feb 2004 14:04:28 +0100
Nothing seen of Joe's signal. 73, Dick, PA0SE At 00:23 23-2-04, you wrote: Peter, I'll start watching on the half hour starting 2330. Brian's grab is showing good reception at the moment. Cheers Joe
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-02/msg00070.html (11,062 bytes)

308. Re: LF: RE: RF Current meter (score: 1)
Author: "Dick Rollema" <[email protected]>
Date: Fri, 20 Feb 2004 10:31:25 +0100
Dear Gary, LF-Group, The coupling between the primary and secundary winding of the current transformer must be purely inductive. But even with a one-turn primary there is also capacitive coupling. Es
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-02/msg00071.html (12,512 bytes)

309. Re: LF: Re: Manual SPM-3 (score: 1)
Author: "Dick Rollema" <[email protected]>
Date: Wed, 04 Feb 2004 19:13:19 +0100
Dear Peter, This goes to PA3DUK as well. With three sources to chose from he should be able to obtain a manual. Many thanks on behalf of PA3DUK. 73, Dick, PA0SE At 16:52 4-2-04, you wrote: Hello Dick
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-02/msg00072.html (9,743 bytes)

310. Re: LF: Re: Manual SPM-3 (score: 1)
Author: "Dick Rollema" <[email protected]>
Date: Wed, 04 Feb 2004 16:11:45 +0100
Thanks Alan, This will also be passed on to PA3DUK. 73, Dick, PA0SE At 15:20 4-2-04, you wrote: Hi Dick, I have the W&G SPM-3 manual as four .PDF files which may be more convenient Cheers de Alan G3N
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-02/msg00073.html (9,443 bytes)

311. Re: LF: Re: Manual SPM-3 (score: 1)
Author: "Dick Rollema" <[email protected]>
Date: Wed, 04 Feb 2004 15:07:27 +0100
Thanks Tracey, I will pass your message on to PA3DUK and ask him to contact you directly. 73, Dick, PA0SE At 14:48 4-2-04, you wrote: Hello Dick I have an original W&G manual for the SPM-3. 73s Trace
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-02/msg00074.html (9,605 bytes)

312. LF: Manual SPM-3 (score: 1)
Author: "Dick Rollema" <[email protected]>
Date: Wed, 04 Feb 2004 14:26:04 +0100
To All from PA0SE PA3DUK of The Hague has obtained a Wandel & Goltermann selective level meter type SPM-3. But he has no manual for it. Anyone knows where to find one? 73, Dick, PA0SE
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-02/msg00075.html (8,433 bytes)

313. LF: Beaconing by PA0SE (score: 1)
Author: "Dick Rollema" <[email protected]>
Date: Mon, 02 Feb 2004 15:45:54 +0100
To All from PA0SE In my message of 30-4-04 I listed the amateurs who had sent me a screenshot of my signal on 135922Hz. In the meantime I received some more. The complete list is now: NL9222, DJ8WX,
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-02/msg00076.html (7,848 bytes)

314. LF: Fluctuating background noise (score: 1)
Author: "Dick Rollema" <[email protected]>
Date: Sun, 01 Feb 2004 15:13:35 +0100
To All from PA0SE, When looking for VO1NA using SPECTRAN I noticed that at some moments the background noise more or less suddenly decreased and then Joe's signal became visible. The low noise leven
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-02/msg00077.html (9,044 bytes)

315. LF: VO1NA (score: 1)
Author: Dick Rollema <[email protected]>
Date: Sun, 14 Mar 2004 19:03:15 +0100
To All from PA0SE After several days with hardly a trace of VO1NA last night I got at least one full call sign in a capture made at 05:46 UTC. See attachment. 73, Dick, PA0SE GIF image
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-03/msg00054.html (7,725 bytes)

316. LF: PA0SE beaconing (score: 1)
Author: Dick Rollema <[email protected]>
Date: Tue, 16 Mar 2004 10:56:49 +0100
To All from PA0SE Last night I had again good copy of VO1NA, first around 0100 UTC and then again starting about 0400 UTC till well into daylight. I intend to do beaconing coming evening/night at 135
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-03/msg00065.html (7,680 bytes)

317. Re: LF: RE: LF: RE: Attn. PAøSE (score: 1)
Author: Dick Rollema <[email protected]>
Date: Thu, 13 May 2004 19:31:29 +0200
Dear Jan-Martin, You can use either [email protected] or [email protected]. 73, Dick, PA0SE At 21:18 12-5-04, you wrote: Dick, would you pls send me a mail, I've lost your email address, and the t
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-05/msg00048.html (9,555 bytes)

318. LF: Circuitmaker Student Version (score: 1)
Author: Dick Rollema <[email protected]>
Date: Fri, 04 Jun 2004 17:08:42 +0200
To All from PA0SE At www.circuitmaker.com/ you find a computer program for designing and analysing electronic circuits. There is a free Student Version, reviewed in QST of June by KJ4UC. 73, Dick, PA
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-06/msg00008.html (8,423 bytes)

319. LF: Effect of LP-filter om efficiency (score: 1)
Author: Dick Rollema <[email protected]>
Date: Tue, 08 Jun 2004 10:06:46 +0200
To All from PA0SE The following subject may have been discussed on the reflector before but I can't remember it. Class D and E final amplifiers have high efficiency because they produce square waves.
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-06/msg00029.html (11,978 bytes)

320. LF: Effect of LP-filter om efficiency (score: 1)
Author: Dick Rollema <[email protected]>
Date: Thu, 10 Jun 2004 12:05:10 +0200
To All from PA0SE Many thanks to all who gave their views on the effect of lowpass filters following 136 kHz power amplifiers. I find the Reflector a wonderful medium for exchanging interesting info
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-06/msg00054.html (8,791 bytes)


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