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References: [ +from:Peter.Chadwick@gpsemi.com: 62 ]

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41. TopBand: Sunday/monday. (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Mon, 20 Oct 1997 15:07:12 +0100; Haven't been on for a couple of days - the JOTA operation led to chaos, with the living room (which is the shack), dining room, and garden full of Guides - Girl Scouts in American. Sunday evening, pe; /archives//html/Topband/1997-10/msg00278.html (7,355 bytes)
42. TopBand: noise canceller (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Mon, 20 Oct 1997 15:12:54 +0100; If you have n noise antennas, you can null (n-1) signals with the technique, but I guess you have to roll your own to do that. 73 Peter G3RZP -- FAQ on WWW: http://www.contesting.com/topband.html Sub; /archives//html/Topband/1997-10/msg00279.html (6,898 bytes)
43. TopBand: Re:EWE's (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Mon, 27 Oct 1997 12:44:47 -0000; Earl (K6SE) describes the original inverted V antenna of the 1930's, although somewhat lower than the original. Strangely enough, I was reading one of my history books this am, and saw it there......; /archives//html/Topband/1997-10/msg00405.html (7,115 bytes)
44. TopBand: Re:EWE's (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Mon, 27 Oct 1997 14:08:07 -0000; Carl, I'm ashamed of you!! Surely, you know by now that all us old fashioned guys who actually want to measure things are totally out of date, and the only thing that matters is simulation results -; /archives//html/Topband/1997-10/msg00410.html (6,954 bytes)
45. TopBand: dipole/vert (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Thu, 30 Oct 1997 12:38:50 -0000; Adding to K1ZM's comments, on 40 m, my sloping dipoles often receive VK better than my horizontal full wave dipole by about 1 S point, while VK receives 1 S point better when the dipole is used on tx; /archives//html/Topband/1997-10/msg00457.html (6,934 bytes)
46. No subject (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Thu, 30 Oct 1997 16:28:47 -0000; I haven't operated on 40 much in the US, but out in California (nr Santa Cruz), both the noise floor and mid evening QRM level made it sound like a dead band compared with Eu. Even up in NH, it was s; /archives//html/Topband/1997-10/msg00464.html (8,095 bytes)
47. TopBand: sept 1st (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Tue, 2 Sep 1997 10:07:00 +0100; looked for VK3AJJ from 1815 UTC........no joy. Very little around - a TK5, a G, a GM and an SM, and LOTS of static. Guess the early morning might be better, but also figure that VK3AJJ might have a b; /archives//html/Topband/1997-09/msg00017.html (6,677 bytes)
48. TopBand: 4 sep (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Thu, 4 Sep 1997 09:13:00 +0100; Tried getting up early - most stations pretty weak, and the QRN vicious! Heard three east coast W's, and wkd one. The W4 who came back to a CQ was just too far down in the QRN. Got 5A28 first call fo; /archives//html/Topband/1997-09/msg00043.html (6,754 bytes)
49. TopBand: SWR (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Mon, 8 Sep 1997 10:29:22 +0100; A fourth one that I've found is current on the outside of the coax. Which doesn't make much sense, but probably because at low levels the detectors in the SWR meter are running in the square law regi; /archives//html/Topband/1997-09/msg00074.html (7,315 bytes)
50. TopBand: Rotor Boxes (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Mon, 8 Sep 1997 15:57:46 +0100; Jeff, Adding to Tom's comment I made the mistake of using 0.1microfarad 50v dc ceramic disc caps for bypassing the T2X. Damn things caught fire - literally - with 28 volts of ac - only 40 volts peak,; /archives//html/Topband/1997-09/msg00077.html (7,523 bytes)
51. TopBand: mornings (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Fri, 12 Sep 1997 11:24:36 +0100; These last two mornings have been very poor for stateside. On Thursday, WD4JRA was the only one heard/worked - weakly. This morning, only K3UL, and he was very weak. QRN minimal here. On the other ha; /archives//html/Topband/1997-09/msg00098.html (7,062 bytes)
52. TopBand: mornings (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Mon, 15 Sep 1997 09:32:54 +0100; Sunday morning saw the band open to the US east coast at 0410Z - worked 12 W's from Fl to NJ. Looked fro VK around 2130Z Sunday, but nothing heard. QRN a problem. 73 Peter G3RZP -- FAQ on WWW: http:/; /archives//html/Topband/1997-09/msg00115.html (6,718 bytes)
53. TopBand: KT34 (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Mon, 15 Sep 1997 14:20:47 +0100; Bill, and Did it work for reducing precipitation static? 73 Peter G3RZP -- FAQ on WWW: http://www.contesting.com/topband.html Submissions: topband@contesting.com Administrative requests: topband-REQU; /archives//html/Topband/1997-09/msg00119.html (6,807 bytes)
54. TopBand: VK9 (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Wed, 17 Sep 1997 10:01:33 +0100; USA Unfortunately, in EU, there's a navigational beacon ( I think HiFix) on 1809KHz! So if anyone can get them to try 1811, we might satisfy everyone. 73 Peter G3RZP - -- FAQ on WWW: http://www.cont; /archives//html/Topband/1997-09/msg00144.html (6,948 bytes)
55. TopBand: verticals (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Thu, 14 Aug 1997 10:28:40 +0100; -- FAQ on WWW: http://www.contesting.com/topband.html Submissions: topband@contesting.com Administrative requests: topband-REQUEST@contesting.com Problems: owner-topband@contesting.com; /archives//html/Topband/1997-08/msg00067.html (8,659 bytes)
56. TopBand: verticals (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Thu, 14 Aug 1997 11:57:02 +0100; Interesting. The 'Services Textbook of Antennas and Propagation' by Glazier and Lamont defines radiation resistance as 'the resistive component of the input impedance of an aerial [antenna]'. On thi; /archives//html/Topband/1997-08/msg00068.html (8,592 bytes)
57. TopBand: verticals (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Thu, 14 Aug 1997 14:08:47 +0100; I guess the bottom line is like the aerodynamics of the bumble bee - despite theory, it works! 73 G3RZP -- FAQ on WWW: http://www.contesting.com/topband.html Submissions: topband@contesting.com Admin; /archives//html/Topband/1997-08/msg00072.html (7,571 bytes)
58. TopBand: verticals (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Thu, 14 Aug 1997 15:45:49 +0100; Greg asks: History says an antenna must be resonant. I've never seen a reason for it either, but there are experts around who claim that if an 80m dipole is more than 10KHz off resonance, it won't wo; /archives//html/Topband/1997-08/msg00075.html (8,069 bytes)
59. TopBand: ground losses (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Thu, 14 Aug 1997 17:30:13 +0100; Following on from Jim's point, how far out from the base of the vertical do you need to go with a method of reducing ground losses? Intuition suggests there would be advantages of getting out into th; /archives//html/Topband/1997-08/msg00080.html (7,571 bytes)
60. No subject (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Fri, 15 Aug 1997 09:48:50 +0100; I don't agree - at least if we mean 'SWR in a 50 ohm system', AND if we define resonance as 'presenting a feed impedance which is purely resisitive'. Lowest SWR is achieved where the feed impedance i; /archives//html/Topband/1997-08/msg00092.html (8,591 bytes)

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