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Total 86 documents matching your query.

41. [TowerTalk] Shunt Fed Tower - 160 Meter Gamma Match Question (score: 1)
Author: "Chuck" <w5pr@swbell.net>
Date: Mon, 15 Feb 2010 10:35:34 -0600
I am trying to shunt feed a tower for 160 meters. I have a 135' Rohn 55 tower with several good sized antennas on it. Guys are insulated. I have run an old piece of coax up 35' about 2' off the tower
/archives//html/Towertalk/2010-02/msg00416.html (8,004 bytes)

42. Re: [TowerTalk] Shunt Fed Tower - 160 Meter Gamma Match Question (score: 1)
Author: "Chuck" <w5pr@swbell.net>
Date: Mon, 15 Feb 2010 19:32:47 -0600
I tried Bud, W2RU's suggestion of switching the shunt capacitor, but it made the receive level lower. I moved the gamma tap to 70 feet. I connected the center conductor at the top and the shield at t
/archives//html/Towertalk/2010-02/msg00439.html (11,275 bytes)

43. Re: [TowerTalk] Shunt Fed Tower - 160 Meter Gamma Match Question (score: 1)
Author: "Chuck" <w5pr@swbell.net>
Date: Wed, 17 Feb 2010 22:20:55 -0600
With the higher attachment point, more series capacitance and zero capacitance to ground I now have 2.5 to 1 SWR. It also was able to make several contacts: C6, P40 and W8. I guess it is just a matte
/archives//html/Towertalk/2010-02/msg00452.html (9,966 bytes)

44. [TowerTalk] Beverage Antenna Problem (score: 1)
Author: "Chuck" <w5pr@swbell.net>
Date: Wed, 24 Feb 2010 21:02:09 -0600
I have been trying to repair my 4 beverage antennas. Wires and terminations are good. 2 of the beverages work well, 2 are "dead" I have checked the coax and connectors are ok. Other than broken wires
/archives//html/Towertalk/2010-02/msg00572.html (8,020 bytes)

45. Re: [TowerTalk] Beverage Antenna Problem-Long-Final Results (score: 1)
Author: "Chuck" <w5pr@swbell.net>
Date: Sun, 28 Feb 2010 12:46:22 -0600
As a follow up to my emails about the troubles with 2 of my Beverage antennas: I found that one of them had an old connection between the beverage box and the antenna that had been covered with liqui
/archives//html/Towertalk/2010-02/msg00687.html (14,664 bytes)

46. Re: [TowerTalk] Beverage Antenna Problem-Long-Final Results (score: 1)
Author: "Chuck" <w5pr@swbell.net>
Date: Sun, 28 Feb 2010 12:56:34 -0600
As an added note: On the Beverage with the bad transformer also had a blown termination. Chuck W5PR _______________________________________________ _______________________________________________ Tow
/archives//html/Towertalk/2010-02/msg00688.html (17,197 bytes)

47. Re: [TowerTalk] TOWAIR query - proximity to airport, FCC and FAA registration (score: 1)
Author: "Chuck" <w5pr@swbell.net>
Date: Mon, 5 Apr 2010 18:55:28 -0500
Thanks to whoever started this. I put in my lat/long and found I was near a grass field I did not know about and my tower project will be about 24 feet too high without registration. The tower was al
/archives//html/Towertalk/2010-04/msg00177.html (13,027 bytes)

48. Re: [TowerTalk] Optimium Tower Height (score: 1)
Author: "Chuck" <w5pr@swbell.net>
Date: Sat, 22 May 2010 08:13:35 -0500
It depends on what you want to do and where you are. I have contested with varying height towers through several sunspot cycles. The most contacts, by far were made on a 70-75 foot high antenna. I wo
/archives//html/Towertalk/2010-05/msg00501.html (11,786 bytes)

49. Re: [TowerTalk] antenna grease (score: 1)
Author: "Chuck" <w5pr@swbell.net>
Date: Sat, 19 Jun 2010 09:14:36 -0500
I don't think it would work. Why would you want to take down the antennas every year to polish the elements and then put grease on them? Chuck W5PR _______________________________________________ ___
/archives//html/Towertalk/2010-06/msg00238.html (7,832 bytes)

50. [TowerTalk] AEA VIA vs RigExperts AA-230PRO Antenna Analyzers (score: 1)
Author: "W5PR" <W5PR@swbell.net>
Date: Thu, 1 Jul 2010 17:06:18 -0500
I am looking at antenna analyzers. I would like a portable device that will graph. Would like to be able to adjust yagis. Build stack boxes to match, for example, 25 ohm to 50 or 75 ohm lines. etc. W
/archives//html/Towertalk/2010-07/msg00001.html (7,395 bytes)

51. [TowerTalk] Fw: AEA VIA vs RigExperts AA-230PRO Antenna Analyzers (score: 1)
Author: "Chuck" <w5pr@swbell.net>
Date: Thu, 1 Jul 2010 19:04:54 -0500
I am mainly interested in HF & 6m. The AA-230 has the TDR for cable faults and it connects via a USB rather than the serial of the AEA. I had an AEA CIA-HF and really liked it. I may not be sophistic
/archives//html/Towertalk/2010-07/msg00005.html (8,316 bytes)

52. [TowerTalk] RigExperts AA-230PRO Antenna Analyzers (score: 1)
Author: "Chuck" <w5pr@swbell.net>
Date: Sat, 3 Jul 2010 13:04:29 -0500
Anyone have experience with one of these? Likes? Dislikes? Thanks, Chuck W5PR _______________________________________________ _______________________________________________ TowerTalk mailing list To
/archives//html/Towertalk/2010-07/msg00057.html (8,627 bytes)

53. Re: [TowerTalk] Divining rods (score: 1)
Author: "Chuck" <w5pr@swbell.net>
Date: Tue, 31 Aug 2010 19:52:38 -0500
You are lucky to have observed this. Chuck W5PR _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://
/archives//html/Towertalk/2010-08/msg00692.html (12,863 bytes)

54. [TowerTalk] Adjusting a Gamma Match on a Yagi with an Antenna Analyzer (score: 1)
Author: "Chuck" <w5pr@swbell.net>
Date: Mon, 8 Nov 2010 20:49:06 -0600
I hate adjusting gamma matches through trial and error. I am hoping my new antenna analyzer will help. I computer designed a 10 meter Yagi which designed at a feed impedance of 31.2 + j18.3. This is
/archives//html/Towertalk/2010-11/msg00109.html (7,298 bytes)

55. Re: [TowerTalk] Adjusting a Gamma Match on a Yagi with an AntennaAnalyzer (score: 1)
Author: "Chuck" <w5pr@swbell.net>
Date: Mon, 8 Nov 2010 22:08:19 -0600
I do have a series capacitor. I was giving you the design impedance without the gamma match and the measured impedance. I used one wavelength of feed line so I could get the antenna off the ground. I
/archives//html/Towertalk/2010-11/msg00112.html (9,637 bytes)

56. Re: [TowerTalk] Fwd: Adjusting a Gamma Match on a Yagi with an Antenna Analyzer (score: 1)
Author: "Chuck" <w5pr@swbell.net>
Date: Thu, 11 Nov 2010 12:31:01 -0600
Ok, I understand all this. The capacitor in the gamma is to cancel the inductance so there is a resistive load. Shorter/longer DE will also vary the capacitive/inductive component without much effect
/archives//html/Towertalk/2010-11/msg00150.html (14,192 bytes)

57. Re: [TowerTalk] STACKED 40 METER BEAMS MATCH (score: 1)
Author: "Chuck" <w5pr@swbell.net>
Date: Mon, 22 Nov 2010 18:43:51 -0600
Sometimes it helps to use BOP when the station you want to work is off the back and there is a strong signal in the front of the stack. Not worth the effort though imho. Chuck W5PR __________________
/archives//html/Towertalk/2010-11/msg00354.html (9,876 bytes)

58. Re: [TowerTalk] Ideas for SMALL diameter support "rope"... (score: 1)
Author: "Chuck" <w5pr@swbell.net>
Date: Sun, 19 Dec 2010 17:34:32 -0600
How about high strength, clear mono-filament fishing line? Chuck W5PR _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@
/archives//html/Towertalk/2010-12/msg00313.html (7,804 bytes)

59. Re: [TowerTalk] ground rods and wells (score: 1)
Author: "Chuck" <w5pr@swbell.net>
Date: Thu, 6 Jan 2011 21:05:06 -0600
Ummm Are you sure that is accurate? Chuck W5PR _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://l
/archives//html/Towertalk/2011-01/msg00140.html (11,288 bytes)

60. Re: [TowerTalk] Fw: [WISPA] Always climb with a buddy...... (score: 1)
Author: "W5PR" <W5PR@swbell.net>
Date: Thu, 17 Mar 2011 15:55:26 -0500
If you read all the way to the bottom it says the cause of death was "blunt force trauma." Sounds like a murder! Chuck W5PR _______________________________________________ ___________________________
/archives//html/Towertalk/2011-03/msg00213.html (10,068 bytes)


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