Paul, I did a quick model of something very similar to your environment using 4NEC2. It comes with a model of a 3 element beam at 50 feet. That antenna has 12.2 dbi gain at a takeoff angle at 20 degr
Hi Ed, You said: I can't do a "whole house ground" the way my place is laid out. There are three grounds at the tower, three under my window and four near the main entry panel. Are your various groun
terminating resistors? Hi Henry, I homebrewed one a year ago, on the way to building a Rhombic (first half of my rhombic). It didn't do much for me in the way of excitement so I completed the Rhombic
OK, I'll bite. How well does it work I used a rhombic up at KL7AIZ that was 500 feet per leg, terminated at the far end.. That one loaded on all bands and was dynamite. I can't resist - let me also a
When we did mine 10 years ago as I remember we used 3 or 4 inch PVC pipes and rolled it on them. Yes, I know it is amazing that stuff is strong in compression. 2-3 strong men to help. Use a crowbar
Greetings Jorge, Good practical info is available on W8JI's website. http://www.w8ji.com/station_ground.htm I try to not repeat the info you have been reading in those good publications. So in summar
My six meter antenna is an M Squared 5 element beam. The coax has a Polyphaser arrestor at the base of the tower. Recently I heard the type of noise you described, during a rain. Every 2-5 secs a po
60 minutes. The story could have been told in 5. Repeating the theme over and over. I give it a 3 (out of 10). K2XT _________________________________________________________________ Keep your kids sa
Anyone who watched the show for more than 1 minute realizes that now. They repeated it at least 200 times during the show. This show must have been written by a seventh grade journalism class. Of co
SteppIR 3 element. I have the US Tower 72 footer, freestanding. You get 3 elements, 5 bands, instant 180 degree reversal of the pattern. A bi-directional mode which is very useful except when you nee
I know a guy who lived near the SteppIR guys in Issaqua Washington back in, I think it was probably 2002 or 2003. He bought one of the first 3 element beams, didn't install it, left it in the garage.
You put a ladder up against it. _________________________________________________________________ Stay in touch when you're away with Windows Live Messenger. http://www.windowslive.com/messenger/ove
There's more to it than just grounding the tower for lightning protection. Maybe if that's all you're interested in (protecting the house from lightning, for example) then it would be ok to just inst
Michael, It would sure seem to me that a 43 ft vertical is essentially a random length antenna. I saw the web site too where they offer a balun to go with it. "It tunes all bands" they say, WITH YOUR
Today I did a little modeling with 4NEC2 on 80 meters. First a regular dipole showed a bandwidth of 200 KHz at the SWR=2:1 points. Then I decided to see how close to a real cage a pair of dipoles has
Hi Bill, I don't agree. In fact I believe the models I built DO STRONGLY resemble a cage, give the same benefit, without the physical difficulties of building a traditional cage. What is a tradition
If anyone would like to discuss other forms of broadband antennas and ways to build or model them please join in. I believe, although I'm not 100% sure, that discussions of all forms of antennas are
If anyone wants my antenna model files of a 4 wire cage and a pair of dipoles let me know. Use k2xt@arrl.net to request, since this will come to my main email account. My models were written for 4NEC
If you care about other things besides just performance I will give you something to consider, as a SteppIR owner. I've had mine for over 5 years, no problems. I hadn't played with the models that ar
If there is lightning induced current coming down the coax lines (in parallel with current coming down the tower legs themselves) the inductance of the coil causes a large voltage to appear across th