TT: The insulators shown are for high-voltage insulator strings used in the electric utility industry. The ball at the bottom of one insulator slips into the clevis joint at the top of the next one i
Pat: For my shunt-feed system, I use a hybrid of the two techniques (individual attachment points plus with a wire buss surrounding the tower base). I connect several radial wires to each #2 ground w
Alan: I have a Trylon tower with angular steel legs like the AN Wireless tower. I ran the cables in the same place you are contemplating - inside the leg angle. To fasten the cables to the steel, I u
JC: You've got it: Build the Trylon or ANW tower AROUND the CM mast. Seriously. It's what I did, although a bit belatedly. (See below.) After you have the first/bottom section built and concreted int
JC et al: Sorry. Only the KNOT should fit into the bottom of the CM mast. The shackle should be large enough to keep the knot from sliding farther inside the mast, but small enough to fit through the
Dave: You're correct - to a point. The knot/shackle at the bottom of the CM (or any other) mast does not have to thread through either/any bearings. Once past the rotator plate level, the mast is as
JC: You'll have your hands full trying to get two bearing blocks AND a rotator AND the attaching shelves all lined up on the tower. Leave out the second (middle) bearing assembly and make your life a
TT: First of all, the industrial bearings some of us use atop our towers are intended for mounting with the mast horizontal, such as in manufacturing environments. In those instances, the bearings al
Peter: ... and a realtively calm day is needed. 73 de Gene Smar AD3F that elsewhere. I had a they on a T2X. Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and as
Steve: This is a posting I made some time ago on the subject: http://lists.contesting.com/archives//html/Towertalk/2003-08/msg00163.html . When I made my posting from a few days ago I had this in min
(Second time sending this note; first one bounced due to quote marks maybe?) Steve: This is a posting I made some time ago on the subject: http://lists.contesting.com/archives//html/Towertalk/2003-08
Jim: I removed a ground rod by bolting a ground clamp near the top and wrapping a chain of some heft around it. Then I used a ratchet bumper jack (not a scissors jack) to pull on the chain. As I reca
Kelly: Digging this kind of excavation is a royal PITA. First, you dig the hole the size of the bottom pad, e.g., 5X5 feet, to the final depth of the hole. You place rebar for the pad AND for the pie
JC: I believe there is a liquid product that is applied to the first-poured concrete that will enhance adhesion to the later pours. I can't recall it's name; maybe someone else on the reflector knows
cut the Doug: When you mount a vertical antenna in the inverted position as you are contemplating, you need to allow for drainage of any accumulated water from within the radome. (There is probably a
Lee: You ought to support the center coax in dipoles mainly to prevent the coax from tearing (bare coax wired to radiating elements) or to keep the PL-259 connector from pulling loose (your case with
Kelly: There is a trick to getting the equivalent of undistrubed earth performance from earth that's been disturbed. This is done all the time in the professional (tower) construction industry. (BTW
Scott: I would not recommend a tilt-over tower on the roof of your house. The average residential, framed roof system is not designed to withstand the forces generated by wind loading on a tower or f
Tom: If you attempt to use aluminum, you have the issue of mechanically connecting the metallic spreaders to the copper wire. Then you have the issue of sealing this connection to prevent Galvanic co