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21. Re: [TowerTalk] Fwd: RG-59 (score: 1): Author: Dave Sublette <k4to.dave@gmail.com>; Date: Sat, 11 Aug 2018 09:11:29 -0400; Is it possible that there is an antenna for a local AM broadcast station near you? If so, that might be upsetting the analyzer that you are using. In that case, I use my rig and an SWR bridge and tes; /archives//html/Towertalk/2018-08/msg00029.html (12,280 bytes)
22. Re: [TowerTalk] supporting a 40 meter rotatable dipole with trusses (score: 1): Author: Dave Sublette <k4to.dave@gmail.com>; Date: Tue, 14 Aug 2018 15:13:15 -0400; I built a full size dipole for 40M and put it at 105 feet on my rotating tower this Summer ... THREE times. The last time it stayed up until this moment. I started with 1.625 inch, triple wall tubing; /archives//html/Towertalk/2018-08/msg00092.html (15,990 bytes)
23. Re: [TowerTalk] What is this all about? (score: 1): Author: Dave Sublette <k4to.dave@gmail.com>; Date: Thu, 4 Oct 2018 12:18:49 -0400; I think it is a scam. Do not click on any attachments. Send it to trash or report it if you have the option as I do with Gmail. 73, Dave, K4TO _______________________________________________ ________; /archives//html/Towertalk/2018-10/msg00004.html (9,257 bytes)
24. [TowerTalk] Ferrite cores (score: 1): Author: Dave Sublette <k4to.dave@gmail.com>; Date: Mon, 8 Oct 2018 22:52:12 -0400; Well I've done it again -- I lost the info on where to order the 1.5 inch type 31 toroids to use when building chokes to feed antennas. I have googled all evening, looked at Mouser, Amidon, etc... an; /archives//html/Towertalk/2018-10/msg00055.html (7,481 bytes)
25. Re: [TowerTalk] ferrite cores (score: 1): Author: Dave Sublette <k4to.dave@gmail.com>; Date: Mon, 8 Oct 2018 23:50:17 -0400; Thanks to all, I will hop on it in the morning. 73, Dave, K4TO PS -- got an email from E6Y. They do not have their 160 antenna up yet due to heavy rain, They will try to get that one working tomorrow; /archives//html/Towertalk/2018-10/msg00061.html (7,326 bytes)
26. Re: [TowerTalk] Ferrite cores (score: 1): Author: Dave Sublette <k4to.dave@gmail.com>; Date: Tue, 9 Oct 2018 06:07:50 -0400; I misspoke when I said RG142 -- I used the RG 400..... Dave _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting; /archives//html/Towertalk/2018-10/msg00066.html (9,512 bytes)
27. [TowerTalk] Ferrite Toroids (score: 1): Author: Dave Sublette <k4to.dave@gmail.com>; Date: Tue, 9 Oct 2018 07:35:36 -0400; After some Googling I found JPM supply: https://www.jpmsupply.com/productslist.asp They appear to have decent pricing. I have ordered some cores. We now wait and see if everything works out. 73, Dave; /archives//html/Towertalk/2018-10/msg00067.html (6,725 bytes)
28. Re: [TowerTalk] Learning from Tragedies (score: 1): Author: Dave Sublette <k4to.dave@gmail.com>; Date: Fri, 12 Oct 2018 13:28:27 -0400; Follow the recommendations found in the Rohn Engineering manual. K4TO _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@; /archives//html/Towertalk/2018-10/msg00091.html (10,354 bytes)
29. Re: [TowerTalk] Tower climbing- and the our great loss of W0AIH (score: 1): Author: Dave Sublette <k4to.dave@gmail.com>; Date: Thu, 1 Nov 2018 17:01:40 -0400; We have NO information as to what went wrong with Paul's accident. I doubt that we ever will. It is not right to speculate on what he may or may not have been doing and I certainly wouldn't accuse hi; /archives//html/Towertalk/2018-11/msg00012.html (10,611 bytes)
30. Re: [TowerTalk] COIL 3.0 (score: 1): Author: Dave Sublette <k4to.dave@gmail.com>; Date: Tue, 20 Nov 2018 16:59:33 -0500; Yes -- that is how I am running it. K4TO _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.c; /archives//html/Towertalk/2018-11/msg00227.html (8,197 bytes)
31. Re: [TowerTalk] Slick New Toy (score: 1): Author: Dave Sublette <k4to.dave@gmail.com>; Date: Fri, 30 Nov 2018 07:50:05 -0500; Any info on how it might do on a quarter wave vertical for 160, operating within two miles of an AM broadcast station? Dave, K4TO _______________________________________________ _____________________; /archives//html/Towertalk/2018-11/msg00287.html (9,851 bytes)
32. Re: [TowerTalk] Slick New Toy (score: 1): Author: Dave Sublette <k4to.dave@gmail.com>; Date: Fri, 30 Nov 2018 09:01:30 -0500; I meant -- how does the VNA work in the presence of strong AM signals. My vertical has worked great when used as an antenna on 160 for the past 30 years. I know how the vertical works. K4TO _________; /archives//html/Towertalk/2018-11/msg00289.html (12,205 bytes)
33. Re: [TowerTalk] Rotator Bolt Patterns (score: 1): Author: Dave Sublette <k4to.dave@gmail.com>; Date: Sat, 1 Dec 2018 15:27:03 -0500; This is an interesting problem! I don't know the answer right off, but you would need to look at the patterns of several rotators and decide. But you could also either redrill the rotator shelf you h; /archives//html/Towertalk/2018-12/msg00002.html (9,186 bytes)
34. Re: [TowerTalk] VHF/UHF Common Mode Choke (score: 1): Author: Dave Sublette <k4to.dave@gmail.com>; Date: Fri, 28 Jun 2019 18:58:23 -0400; Using a T-match eliminates the need for a choke, for the most part. I have T-matches on everything from 2M to 70 CM. Dave, K4TO _______________________________________________ _______________________; /archives//html/Towertalk/2019-06/msg00181.html (9,841 bytes)
35. Re: [TowerTalk] M2 Orion 2800PX Controller (score: 1): Author: Dave Sublette <k4to.dave@gmail.com>; Date: Mon, 28 Oct 2019 12:44:17 -0400; I have had an Orion RC2800PX running for many years. I've had to replace the reed switch a couple of times due to close lightning strikes. But otherwise no problems. I turn 15 large 6 meter through 2; /archives//html/Towertalk/2019-10/msg00224.html (8,221 bytes)
36. Re: [TowerTalk] Hunting for a feedline fault (score: 1): Author: Dave Sublette <k4to.dave@gmail.com>; Date: Fri, 8 Nov 2019 07:51:18 -0500; Dave... Please do tell us what you find when you dig at 20-24 feet from the end. Here's hoping you didn't bury it too deeply! Good Luck. 73, Dave, K4TO _______________________________________________; /archives//html/Towertalk/2019-11/msg00051.html (8,501 bytes)
37. Re: [TowerTalk] JK301 30M Dipole (score: 1): Author: Dave Sublette <k4to.dave@gmail.com>; Date: Sat, 9 Nov 2019 12:07:29 -0500; I designed a full length 40 M dipole using old Telrex elements and some added tubing. I did the stress analysis, etc. I had to double and triple wall several places. It is broadbanded over the entire; /archives//html/Towertalk/2019-11/msg00071.html (11,134 bytes)
38. [TowerTalk] multi-sheave pulley (score: 1): Author: Dave Sublette <k4to.dave@gmail.com>; Date: Wed, 13 Nov 2019 12:26:10 -0500; Good afternoon, I have to change the position pot in my PST-71 rotator for my Rohn 55 rotating tower, I guess the 10 degree temp last night finally got to it. It has been going bad for a few weeks. T; /archives//html/Towertalk/2019-11/msg00103.html (7,652 bytes)
39. [TowerTalk] Position Pot (score: 1): Author: Dave Sublette <k4to.dave@gmail.com>; Date: Wed, 13 Nov 2019 16:47:35 -0500; One more question for the learned crew here. I got good advice from my last inquiry about the pulley -- not going to do it. Going to rig a single pulley and a pulley on the tower leg at ground level; /archives//html/Towertalk/2019-11/msg00114.html (7,301 bytes)
40. [TowerTalk] Multisheave pulley--wrapup (score: 1): Author: Dave Sublette <k4to.dave@gmail.com>; Date: Sat, 16 Nov 2019 19:04:13 -0500; Good evening all, We had a beautiful day today. The sun was out, the temperature went to 45, and the wind was light. I didn't have to install the locking bolts on the tower. I just tied it off a coup; /archives//html/Towertalk/2019-11/msg00179.html (8,200 bytes)

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