Larry: If you decide to go the push-up mast route, I suggest you NOT use the cotter pins that typically come with these masts. (FYI - my RS mast came with three cotter pins to use to hold the section
Mark: I used twelve One-Shots for my installation in 2001. I bought them from The RF Connection (www.therfc.com ) but they may no longer carry them. Mine cost me about $7 per shot FWIW. 73 de Gene Sm
Fred: The 18 sqft rating of the tower is probably based on having the antenna load no more than 2 feet above the top of the tower. Check the tower manufacturer's specs for the derivation of this figu
TT: Now is as good a time as any to bring to your attention the QST article titled, "Install a House-Bracketed Tower -- The Right Way." It's in the August, 1996 issue, page 35. Let's be careful out t
Gents: Ken Miller K6IR/3's daughter Nancy has asked me to inform you all that the family wishes to make Ken's tower and HF antenna system available - free for the taking. The system is an LM470 motor
Jerry: Assuming the SPG pipe will be indoors, you can connect equipment grounding conductors to the copper pipe with stainless steel hose clamps an an anti-oxidizing compound. Use a conventional grou
Hans: I doubt that a sign will truly scare away a determined trespasser. What you might do instead is install anti-climb devices on the bottom section of tower. These can be objects such as steel pan
Pete: I did almost the same thing on my tower with the rotator control cable. Underneath the rotator shelf and just before the cable enters a steel box at the base of the tower, I formed a four-turn
TT: We in MD just received the note below from our SM. 73 de Gene Smar AD3F Making point-to-point HF propagation predictions is now easier than ever as "VOACAP" Online, http://online.voacap.com, has
Gents: K6IR/3 (SK)'s daughter has asked me to tell you all that she is ready to give her dad's bound collection of QST's to a good home. You'd just have to drop by his house in Rockville, MD, near Wa
Tom: The HDBX sections are 8 feet long vs 25G's 10 feet - probably do-able in a pick-em-up. As for nesting, I'd suggest nesting the even-numbered sections together and the odd-numbered sections toget
Dan: If the inductor is the correct value (high enough XL at the vertical's lowest frequency of operation so as not to upset the feedpoint impedance appreciably) you can permanently connect it to the
Joe: Steve K7LXC told me of his trick to get the bottom section of a self-supporting tower plumb. The remaining sections should follow along plumb as a result. I used his method when I built my Trylo
TT: The Polyphaser suppressors I installed (IS-B50HU-C0) included an O-ring to seal against the outside of the Hoffman enclosure in which they are mounted. If your suppressor didn't come with them, y
TT: Hi Jim, If you have the financial means, the shields of tower coaxial transmission lines should be bonded to the tower at or near the top AND bottom. The idea here is to shunt as much of a strike
Dave et al: I did the same thing as you did with the coax and connectors at my single point ground bar at the shack end of the coax runs. The issue I have with installing PL-259's or whatever simply
TT: At Home Despot today I bought a pair of cheap yet, I hope, effective gloves for use while climbing. They are made by Firm Grip (a Vietnamese company) and have padding in the palms and across the
Kelley: First of all, don't drill any more holes in your tower. The damaged hole will eventually weaken with rust, especially on the thin steel of an HDBX tower. There are other, non-destructive ways
TT: Today somehow I came across this page: http://www.wirelessestimator.com/emergency/ . It leads you to a form that will help you identify in advance the emergency resources available in your area,
Anthony: FWIW - I just helped the daughter of a SK up the street from me locate a buyer for her dad's crank-up tower. It was removed a couple of weeks ago. The tower was a 72-footer witha KT-34XT ato