I have found that Household Goop, which is a clear butane material seems to work well for gasketing, seals, and for strain relief on small cables. Flexible. Adheres to metal and plastic, and works ov
Patrick, Two areas of comment: 1) You live on what is essentially a solid rock, albeit somewhat porous... why can't you drill into it and epoxy rods into the caliche to hold the tower base? Or pressu
Just getting set to pour the foundation for my new tower - finally. I am not sure in which manner to proceed with the final grounding step. I have tied my rebar all together securely, ran a #2 cable
David, Urban legends? I don't think so. WCTC-AM, New Brunswick, NJ. Took multiple strikes, and had structural cracks in the foundation afterward. This was in the 1965's, when I worked there as an eng
David, I would venture to say there are more insulated, serial fed towers in the air, than grounded through the foundation amateur towers, by a fair margin. But I could be wrong, and it's totally aca
We appear to be converging on some agreement: It was my impression that most concrete cracking initiated by lightning strikes was caused by explosively expanding steam, from the water in the concrete
TT: Rohn specifies guys at 30' intervals. Should be fine to climb and attach guys, if the base meets mfr's specs. Should be no problem forming guy loops using preforms, and dropping the loops over th
I wasn't going to comment, but some of the responses have been a bit afield, in my view. so, here goes: First, it depends on height above ground, in both cases. Higher is better, in general. Second,
Copy and paste the relevant parts of the discussion you're in, instead. If you hit 'reply', you copy the whole previous digest. Makes for very long responses, and tedious reading. Thanks. n2ea Jim Ja
John is an old and good friend. I've climbed with him. He's as careful-- frankly, as anal -- as it gets. There is a take-away in here: Temporary guys are damned risky. That which is temporary holds y
I just spoke with Nick, GD's son, and with the nursing supervisor. The old boy is resting. Internal bleeding has been stopped. Still have to deal with a broken pelvis and L12 fracture. All appendages
You need to be more specific about the loop design. Horizontal square loops, delta loops, vertical square loops all perform differently. In fact, depending on the geometry, and the feedpoints, each
JR's questions about loop v dipole has triggered a corollary question: Who has experience with vertical square loops? I used to regularly work a guy on 40 who used them with real advantage, versus my
Had a couple of comments, both on and off reflector, which made me realize that I wasn't sufficiently descriptive. I'm really NOT talking about a standard square loop, regardless of whether it's orga
Depends highly on the winch and the drill, I would say. The winch/gearbox system on my ab621 had a 1" square boss, which I had mated to a shaft which would go into a 4:1 right angle drive for my 1.2"
tt: Not sure where this thread started, but I put one up which worked quite well, in an afternoon. First qso was Campbell island on topband, from Vermont. No trap required. 67' (62.5'?)of 450 ohm lad
You will need a space of about 1200 feet to build it and a method of accurately aiming it, 11.3 dBi gain, beamwidth 12.2 degrees. Jerry, K4SAV To which N2EA appended: Assuming you could efficiently m
To which Dave Robbins, K1TTT replied: Only a proper architect could tell for sure... but I would be afraid of the bracket cracking the stucco. Remember, the bracket takes all the side forces on the t
If you have a winch which does not have a clutch system, requiring that you positively crank the tower down, and which prevents a free-wheeling winch handle, you are just asking for this to happen to
100 ohms with just the single ground pipe? Makes sense. Probably 35 ohms from the antenna, 70 ohms from the ground... and 2/3 of the power is lost in the earth. keep adding radials, and things should