Bill was referring to "Full-Size" antennas for 40 meters. While HyGain and Cushcraft and others make loaded versions, getting a full blown, full size antenna has almost become a roll-your-own only an
I bought 25 nice feedthru's a while back from Fair Radio Sales in Lima, Ohio. They are a surplus outlet and quite often have some great stuff. de KL7HF -- FAQ on WWW: http://www.contesting.com/towert
Unfortunately, the definition of resonance when applied to radiating surfaces, is not the same as resonance as applied to tuned circuits. An antenna is said to be resonant when standing waves occur a
Because of the height, bubble levels really aren't much good. If you can't "shoot it" with a transit, a plumb bob is the second best. Even 6' levels have a great error when you're looking at 100 + fe
If the load is proper, the length of the jumper is of no consequence. If changing the length of the jumper makes a major difference, then the load is highly reactive. de KL7HF -- FAQ on WWW: http://w
-- To: <towertalk@contesting.com> To heck with the Vols - GO DOLLY PARTON! de KL7HF -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administrative req
When we went to the new service definition, the Commission lumped us with the CBers. When we accept the premise that Amateur Radio is for communicating, then we have indeed joined the CB ranks. The o
Okay guys, look before you leap into this. The very reason you want to use worm gears is the inherent weakness of worm gears. The amount of back pressure from a large array is expended on a very smal
Okay guys, look before you leap into this. The very reason you want to use worm gears is the inherent weakness of worm gears. The amount of back pressure from a large array is expended on a very smal
Yes - yes - yes!!!! It's guys like this that make ham radio what it is! -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administrative requests: tower
Icky-Pik in the biz. It displaces moisture and is the only sure method of weatherproofing for buried cable. Splicing underground puts some special requirements on the splice. A sure method of making
Like the others who have asked, I'd like to have some firm information on lightening damaged foundations. I've seen a lot of towers being struct, mostly TV and Broadcast because of their height, but
Well - all of the "professionals" I know use cable hangers for all transline. I wouldn't consider hiring one that used THHN. If the job doesn't look professional, then it isn't. de KL7HF -- FAQ on WW
No-No Steve: This is a totally unacceptable method of hanging coax or any other cable by a professional. First, it provides little sharp objects every few feet to rip your pants and hands while climb
Hi Martin: You've hit on the key phrase here. When you say "Professional", you're talking about a man doing this on a job for money. Not at his own home. We all do things differently on our own tower
Imagine the voltage required to jump that gap and still have 120,000 amps. Could light small cities for days! de KL7HF -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertal
Hi Larry: Good to see the posting from you. We do (or did, I don't climb much anymore) use the Kellum type grips for hauling long runs of transline up towers, but after the cable hangers are in place
To: <towertalk@contesting.com> -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administrative requests: towertalk-REQUEST@contesting.com Problems: own
You're correct, of course. In this instance, a given level was used as a reference, and an attenuator was used to drop the signal to the various readings. Voltage or power doesn't matter, because a 1
Thanks, L.B. I wondered why they did that. HyGain triband antennas use traps resonant way below each band and it never made sense to me before. Very interesting. de KL7HF -- FAQ on WWW: http://www.co