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Total 85 documents matching your query.

41. TopBand: 160 QSK Operating Practices (score: 1)
Author: W8JITom@aol.com (W8JITom@aol.com)
Date: Sat, 28 Dec 1996 16:19:21 -0500
I think the real solution is to remind people that long calls zero beat with the big pile do no good. Generally the strongest station gets through in the mess, or the crafty operator calling a KHz or
/archives//html/Topband/1996-12/msg00495.html (8,122 bytes)

42. TopBand: JY9QJ Mess (score: 1)
Author: W8JITom@aol.com (W8JITom@aol.com)
Date: Tue, 31 Dec 1996 15:05:24 -0500
Yep, I went up to watch TV after the mess started. People not even called were having ghost QSO's with him, transmitting on his frequency and QRMing him while pretending to work him, while the guys h
/archives//html/Topband/1996-12/msg00562.html (7,395 bytes)

43. TopBand: Radiation Resistance (score: 1)
Author: W8JITom@aol.com (W8JITom@aol.com)
Date: Sun, 3 Nov 1996 12:55:31 -0500
Hi Henry, Radiation resistance is the TOTAL power radiated as an electromagnetic radiation divided bt the square of the current at some defined point in the system. It is never the feedpoint resistan
/archives//html/Topband/1996-11/msg00042.html (8,825 bytes)

44. TopBand: PO vs. voltage (score: 1)
Author: W8JITom@aol.com (W8JITom@aol.com)
Date: Fri, 8 Nov 1996 15:19:07 -0500
If you are driving the amp with 100 watts, and getting 600 watts out, you will likely need tubes very soon. You are almost certainly overdissipating some element in the tubes. It will make no differe
/archives//html/Topband/1996-11/msg00116.html (7,745 bytes)

45. TopBand: "Local" Yackers (score: 1)
Author: W8JITom@aol.com (W8JITom@aol.com)
Date: Fri, 15 Nov 1996 11:35:02 -0500
Craig may want to take a low profile, but let's cut the crap and tell it like it really is. Let's be honest with each other. 1850, like 1855 and other "channels" is populated by groups of ragchewers
/archives//html/Topband/1996-11/msg00201.html (8,868 bytes)

46. TopBand: MLA2500 (score: 1)
Author: W8JITom@aol.com (W8JITom@aol.com)
Date: Mon, 18 Nov 1996 22:52:54 -0500
Hi Bob, As I recall it was an almost unnecessary padding cap for higher bands. The MLA does NOT need more Q, once Q is larger than one plus the sqrt of Rplate/RLoad any further increase in Q lowers t
/archives//html/Topband/1996-11/msg00259.html (9,522 bytes)

47. TopBand: MLA2500 (score: 1)
Author: W8JITom@aol.com (W8JITom@aol.com)
Date: Fri, 22 Nov 1996 07:02:38 -0500
Hi Joe, The question was efficiency, but I thought about what others might think after I posted it. Perhaps in hindsight should have said more. I suspect the Q of 12 comes from days when PA's were of
/archives//html/Topband/1996-11/msg00329.html (9,383 bytes)

48. FW: Re: TopBand: MLA2500 (score: 1)
Author: W8JITom@aol.com (W8JITom@aol.com)
Date: Fri, 22 Nov 1996 07:02:45 -0500
Hi Rich / W2CYA, You are using data from a class C non-feedback 4-65A tube PA and trying to apply that data to a class AB application that has considrable negative feedback. You have also misread the
/archives//html/Topband/1996-11/msg00330.html (9,160 bytes)

49. TopBand: Dayton Forums (score: 1)
Author: W8JITom@aol.com (W8JITom@aol.com)
Date: Thu, 28 Nov 1996 08:41:53 -0500
Hi All, I paid for a transcript of the Culpepper talk at Dayton last year, but to this date I have received no transcript and no refund. Does anyone know who to contact about this? Please E-mail dire
/archives//html/Topband/1996-11/msg00424.html (6,574 bytes)

50. TopBand: Re: 160 M DX window (score: 1)
Author: W8JITom@aol.com (W8JITom@aol.com)
Date: Fri, 29 Nov 1996 11:15:52 -0500
I've also been active on 160 since the early 60's. But hang all this emotional junk and personal opinion, let's look at this issue technically. We can talk all we want about "technology" elimiminatin
/archives//html/Topband/1996-11/msg00442.html (8,472 bytes)

51. TopBand: Feed systems (score: 1)
Author: W8JITom@aol.com (W8JITom@aol.com)
Date: Fri, 29 Nov 1996 11:15:56 -0500
Be careful using feed systems that connect the coax between a few elevated wires and the tower structure itself. Nothing stops current from flowing in the tower BELOW the connection point, as well as
/archives//html/Topband/1996-11/msg00443.html (7,093 bytes)

52. TopBand: Inverted-L question (score: 1)
Author: W8JITom@aol.com (W8JITom@aol.com)
Date: Tue, 1 Oct 1996 10:09:18 -0400
case Before we get carried away with little bits of funny humor let me explain why I'm a "doubting Tom". I reseach things before I get caught up in a "new frenzy". When the elvated radial thing came
/archives//html/Topband/1996-10/msg00008.html (9,409 bytes)

53. TopBand: Inverted-L question (score: 1)
Author: W8JITom@aol.com (W8JITom@aol.com)
Date: Tue, 1 Oct 1996 18:00:23 -0400
If only a few radials were used, elevating them helped a dB or two but they were still down 4-5 dB from 60 radials. If 60 radials were used, it made no difference if they were elevated or contacting
/archives//html/Topband/1996-10/msg00016.html (7,427 bytes)

54. TopBand: How many radials is enough? (score: 1)
Author: W8JITom@aol.com (W8JITom@aol.com)
Date: Wed, 2 Oct 1996 13:45:04 -0400
Thank's John, for the summery of the data in the L.B and E study. It was a bit of work putting it in that form, but that is more useful than verbal descriptions. My goal isn't to run NEC or elevated
/archives//html/Topband/1996-10/msg00027.html (9,188 bytes)

55. TopBand: A "big" Magnetic Loop Antenna (score: 1)
Author: W8JITom@aol.com (W8JITom@aol.com)
Date: Wed, 9 Oct 1996 12:23:55 -0400
magnetic this All antennas are electromagnetic radiators and absorbers, except in very close proximity to (some areas of) the antenna. In the very close near field antennas can have direct coupling f
/archives//html/Topband/1996-10/msg00117.html (8,328 bytes)

56. TopBand: RFI: HELP! (score: 1)
Author: W8JITom@aol.com (W8JITom@aol.com)
Date: Fri, 11 Oct 1996 10:25:03 -0400
Hi Scott The same cures for TVI apply to RFI generated by the TV. The problem is much more likely the TV set has two wires attached to it that allow it to radiate a good signal, rather than through t
/archives//html/Topband/1996-10/msg00140.html (8,389 bytes)

57. TopBand: Elevated Radials (score: 1)
Author: W8JITom@aol.com (W8JITom@aol.com)
Date: Sat, 12 Oct 1996 21:52:19 -0400
Right on. I like to view this current as the current created because the antenna needs something for the other terminal to "PUSH" against. The sum of currents flowing in ALL the wires running up vert
/archives//html/Topband/1996-10/msg00159.html (11,166 bytes)

58. TopBand: Elevated Radials (score: 1)
Author: W8JITom@aol.com (W8JITom@aol.com)
Date: Mon, 14 Oct 1996 18:34:25 -0400
Hi Eric, An important point is folklore has it that a loop is quieter by gender, or that a loop (or other antennas) can be shielded from electric fields. That is impossible, unless the antenna is mad
/archives//html/Topband/1996-10/msg00197.html (11,468 bytes)

59. TopBand: Inverted L by the sea... (score: 1)
Author: W8JITom@aol.com (W8JITom@aol.com)
Date: Mon, 14 Oct 1996 18:55:40 -0400
Hi Gary, The real problem is his ground lead (and hence the overall antenna length) is getting shorter and longer with the tide. High tide means a shorter antenna. 73 Tom -- FAQ on WWW: http://www.co
/archives//html/Topband/1996-10/msg00198.html (7,560 bytes)

60. TopBand: N7CL (score: 1)
Author: W8JITom@aol.com (W8JITom@aol.com)
Date: Wed, 16 Oct 1996 08:55:07 -0400
Eric, I try to e-mail you and it bounces. Please e-mail me with your correct e-mail address. 73 Tom -- FAQ on WWW: http://www.contesting.com/topband.html Submissions: topband@contesting.com Administr
/archives//html/Topband/1996-10/msg00215.html (6,422 bytes)


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