TT: I used Erico Cadweld On-Shots for my tower project in 2001. Like in the video, I had to use electrician's putty to seal the holes around the crucible. Cadweld instructions did not include this st
Joe: I agree with Dave: Don't change anything. I used to work with an experienced tech who would say, "The more you leave it alone the better it works." 73 de Gene Smar AD3F -- Original message
Kim: If you haven't already done the Cadwelding (I'm behind on my email reading this week), and assuming you're using One-Shots, I suggest you put a snake of electrician's putty around the wires and
Topband aficionados: Having our moderator's kind permission, allow me to make this unsolicited recommendation of Jeff's book. It is filled with practical designs and Topband anecdotes. The very effec
Mike: Click on the link to bookbaby below. Apparently it is available for Kindle. 73 de Gene Smar AD3F --Original Message-- From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of W0MU
TT: A couple of years ago a squirrel (and I know which one he is) chewed through the outer jacket of all three of my tower's coax runs near ground level. I taped them up as well as I could at dusk on
Grant: Thanks for the info and especially for the link. I now have it downloaded into my tower docs on my PC. The Andrew process seems to be for symmetrical connections but not for the asymmetrical c
TT: After I had installed my tower in 2001, I contacted my insurance agent about coverage. She told me that my tower is covered as an accessory structure. That return email from her is in my tower fi
A year ago a cell provider (not sure which one) constructed a short tower (maybe 60 feet tall) on the route I take to work each day. Since then I've noted that on one 2M repeater output freq I hear w
TT: There are lots of other examples and case studies of uber-lightning and grounding installations linked from the main page of that site: https://www.copper.org/ . Click the Applications tab, then,
More epoxy? 73 de Gene Smar AD3F -- Original message -- From: mike stokes <mike9v@gmail.com> Date: 07/11/2017 2:41 PM (GMT-05:00) To: "Tower and HF antenna construction topics." <towertalk@contesting
Kelly: When I was working on a cellular project in Haiti in the early 2000's, we installed a totally passive repeater system to improve coverage for the President's palace to tide us over while we wo
I use one powered by butane but just for center conductor. I crimp the shields while on the tower. 73 de Gene Smar AD3F -- Original message -- From: "Dale M. Schwartz" <dale@immlawfirm.com> Date: 08
Dave: If you decide to wind a coaxial balun, here's a link to the D40 manual https://www.dxengineering.com/parts/csh-d40/documentation . Essentially, the balun is 12 turns of non-foam dielectric coax
Don: Add two feet to the 40M antenna and get on the air. DX is awaiting. 73 de Gene Smar AD3F To begin, I have zero experience with a fan dipole. Ive read what I could find but see there are a number
TT: When I worked for the local electric utility in PA we used stranded 4/0 galvanized steel wire as our ground conductors from substation structures and fences posts onto a buried mat of the same co
Joe: I put arresters through the side of a steel Hoffman box at the bottom of my tower. http://photobucket.com/gallery/user/ersmar/media/bWVkaWFJZDoxMzI5NDM0NA==/?r ef=1 I did this because I have a c
TT: I want to be able to switch a piece of #14 house wire onto the far end of a sloper wire I have for 75 M phone so I can operate lower in the band. I'm thinking of adding a relay in a weather-resis
TT: Here are the suggestions you have sent me on this subject: O I have found automotive relays to be useful. There are some available for switching high currents at reasonable prices. I would expect