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81. Re: [TowerTalk] windloading on W51 tower (score: 1)
Author: "David Hachadorian" <k6ll@adelphia.net>
Date: Wed, 26 Jul 2006 01:25:15 -0000
-- My old Triex catalog says 9 sq ft at 50 mph. Dave Hachadorian, K6LL Yuma, AZ . _______________________________________________ _______________________________________________ TowerTalk mailing lis
/archives//html/Towertalk/2006-07/msg00783.html (7,737 bytes)

82. Re: [TowerTalk] Rohn tilt-over question (score: 1)
Author: "David Hachadorian" <k6ll@adelphia.net>
Date: Wed, 26 Jul 2006 05:13:50 -0000
"In seconds the entire tower top is folded over and accessible. When work is completed, tower is easily returned to up-right position and you never leave the ground!" I interpret that to mean that yo
/archives//html/Towertalk/2006-07/msg00793.html (8,893 bytes)

83. Re: [TowerTalk] RFI Radius vs Ant Height (score: 1)
Author: "David Hachadorian" <k6ll@adelphia.net>
Date: Thu, 3 Aug 2006 01:22:30 -0000
It looks like your electric and cable lines are underground in that neighborhood. That is good. I guess there is no restriction on towers. That is also good. I think you have hit upon the perfect cit
/archives//html/Towertalk/2006-08/msg00043.html (8,888 bytes)

84. Re: [TowerTalk] Beam Suggestions (score: 1)
Author: "David Hachadorian" <k6ll@adelphia.net>
Date: Fri, 18 Aug 2006 16:53:15 -0000
I remember the magazine article where Wayne Overbeck ran around Southern California measuring the gain/fb of various quad antennas. As his reference antenna, he used a HY-Gain TH-2 on a portable towe
/archives//html/Towertalk/2006-08/msg00574.html (7,350 bytes)

85. Re: [TowerTalk] small antennas (score: 1)
Author: "David Hachadorian" <k6ll@adelphia.net>
Date: Sat, 19 Aug 2006 14:04:22 -0000
The 40-2CD normally stacks well with a tribander, but may affect 18 and 24 Mhz. It can also affect 10, 15 or 20 if an "unlucky" length of feedline is dangling off the 40-2CD's driven element. The eas
/archives//html/Towertalk/2006-08/msg00634.html (9,569 bytes)

86. Re: [TowerTalk] small antennas (score: 1)
Author: "David Hachadorian" <k6ll@adelphia.net>
Date: Sat, 19 Aug 2006 15:37:57 -0000
-- No, because you are using your receiver S-meter, which needs agc to drive it. It helps though to have the nearby ham adjust his power so that, with your antenna pointed away, he is about S2, or wh
/archives//html/Towertalk/2006-08/msg00638.html (8,569 bytes)

87. [TowerTalk] Online Mast Calculator (score: 1)
Author: "David Hachadorian" <k6ll@adelphia.net>
Date: Sun, 20 Aug 2006 17:47:09 -0000
The following was posted under the "aluminum Masts" thread. The calculator is pretty neat, so I thought it was worth reposting under a different subject, so people don't miss it. Dave Hachadorian, K6
/archives//html/Towertalk/2006-08/msg00652.html (8,157 bytes)

88. Re: [TowerTalk] Rohn tower bolts (score: 1)
Author: "David Hachadorian" <k6ll@adelphia.net>
Date: Wed, 30 Aug 2006 02:28:21 -0000
-- Classic double entendre! :>) Dave Hachadorian, K6LL Yuma, AZ _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contes
/archives//html/Towertalk/2006-08/msg01085.html (8,717 bytes)

89. Re: [TowerTalk] Comparison between SteppIR and Cushcraft LogPeriodic? (score: 1)
Author: "David Hachadorian" <k6ll@adelphia.net>
Date: Wed, 6 Sep 2006 03:35:54 -0000
If you believe the manufacturers' numbers, you are giving up over 2 dB of gain on most bands if you go with the Cushcraft. That would be significant for me. Plus, there is the old ham axiom of "LP's
/archives//html/Towertalk/2006-09/msg00225.html (8,466 bytes)

90. Re: [TowerTalk] Comparison between SteppIR and CushcraftLogPeriodic? (score: 1)
Author: "David Hachadorian" <k6ll@adelphia.net>
Date: Wed, 6 Sep 2006 05:50:38 -0000
-- I think you are looking at the 2 el Steppir specs for that 6.6 dBi gain. Look at the 3 el specs and you will see that the HF gain varies from 7.4 to 9.0 dBi, depending on band. http://www.steppir.
/archives//html/Towertalk/2006-09/msg00234.html (9,016 bytes)

91. Re: [TowerTalk] LM-354HD 130 MPH Wind Load (score: 1)
Author: "Dave Hachadorian" <K6LL@adelphia.net>
Date: Thu, 23 Nov 2006 04:17:34 -0000
-- Karl Tashjian should be able to do that for you. From what I've seen, his fees are reasonable (~$200). Maybe he has already done that analysis, and it will cost even less. http://www.tashtowers.co
/archives//html/Towertalk/2006-11/msg00586.html (8,197 bytes)

92. Re: [TowerTalk] W0IYH choke (score: 1)
Author: "Dave Hachadorian" <K6LL@adelphia.net>
Date: Wed, 10 Jan 2007 17:42:39 -0000
https://www3.qth.com/~comteksy/secure/ Scroll down to "accessories." Dave Hachadorian, K6LL Yuma, AZ _______________________________________________ _______________________________________________ To
/archives//html/Towertalk/2007-01/msg00389.html (6,843 bytes)

93. [TowerTalk] a HOT contest! (score: 1)
Author: "Dave Hachadorian" <K6LL@adelphia.net>
Date: Wed, 17 Jan 2007 21:35:36 -0000
This is a pretty wild story. First, by way of background, my antennas are a KT-34XA at 50', a 40-2CD at 55', and an 80 meter half sloper fed at 47'. So I'm operating in the RTTY Roundup on 80 meters
/archives//html/Towertalk/2007-01/msg00512.html (8,758 bytes)

94. Re: [TowerTalk] Short (5') mast OK? (score: 1)
Author: "Dave Hachadorian" <K6LL@adelphia.net>
Date: Wed, 21 Feb 2007 18:30:47 -0000
Texas Towers will saw off one foot from their 10' masts for you. The 9 footer is UPS-shippable. Dave Hachadorian, K6LL Yuma, AZ _______________________________________________ _______________________
/archives//html/Towertalk/2007-02/msg00348.html (9,153 bytes)

95. Re: [TowerTalk] Cushcraft to be sold (score: 1)
Author: "Dave Hachadorian" <K6LL@adelphia.net>
Date: Wed, 28 Feb 2007 15:14:32 -0000
You can see from the thrust of the press releases on the Cushcraft site that the main thrust of the combined businesses will be in the area of wireless networking, such as RFID and WiFi. I wonder if
/archives//html/Towertalk/2007-02/msg00492.html (7,545 bytes)

96. Re: [TowerTalk] Polyrod vs Philly vs 502s (score: 1)
Author: "Dave Hachadorian" <K6LL@adelphia.net>
Date: Wed, 14 Mar 2007 23:48:12 -0000
I've had my old style potted philly up for almost 30 years now in one of the world's highest UV radiation locations. It hasn't failed yet, and there is no visible deterioration. Dave Hachadorian, K6L
/archives//html/Towertalk/2007-03/msg00234.html (8,535 bytes)

97. Re: [TowerTalk] Quick wind question (score: 1)
Author: "Dave Hachadorian" <K6LL@adelphia.net>
Date: Sun, 18 Mar 2007 16:24:53 -0000
Here's a nifty online calculator: http://www.math.niu.edu/KARC/mast/ Dave Hachadorian, K6LL Yuma, AZ . _______________________________________________ _______________________________________________
/archives//html/Towertalk/2007-03/msg00337.html (7,856 bytes)

98. Re: [TowerTalk] ROHN 25G Fold-Over Tower (score: 1)
Author: "Dave Hachadorian" <K6LL@adelphia.net>
Date: Mon, 26 Mar 2007 18:33:55 -0000
My fk2548 foldover uses a Dutton-Lainson B1200 Brake Winch: http://www.dutton-lainson.com/mfg/brakewinchspecspage.html You can use the DL specs to shop for an equivalent winch. Dave Hachadorian, K6LL
/archives//html/Towertalk/2007-03/msg00549.html (8,751 bytes)

99. Re: [TowerTalk] Is anyone using the 3 feedline approach on theC31XRfor SO2R? (score: 1)
Author: "Dave Hachadorian" <k6ll@adelphia.net>
Date: Tue, 5 Jun 2007 09:45:23 -0700
I believe 5B4AGN is doing this successfully at 1500 watts. Effective stubs and filters are absolutely required. http://www.5b4agn.net/ His web site does not specifically say how the nine feedlines fr
/archives//html/Towertalk/2007-06/msg00085.html (9,552 bytes)

100. Re: [TowerTalk] Is anyone using the 3 feedline approach on theC31XRfor SO2R? (score: 1)
Author: "Dave Hachadorian" <k6ll@adelphia.net>
Date: Tue, 5 Jun 2007 10:12:16 -0700
Actually, looking at 5B4AGN's tower, I see only one c-31xr, so maybe he is always doing so2r with three feedlines on the one antenna. www.5b4agn.net Dave Hachadorian, K6LL Yuma, AZ . ________________
/archives//html/Towertalk/2007-06/msg00088.html (9,092 bytes)


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