In the URL given, if you enlarge the 10th. pic from the top, you can see how the steps are constructed. Looks pretty simple with common antenna mounting hardware, clamps, bolts, etc. They are heavy d
Google used this...."antenna mast with climbing steps" .... to find this.... http://w9iix.com/ii00012.htm http://www.astel-comms.com/brackets.html Roger ______________________________________________
I have done this twice over the years. A Rohn 25 concrete base along with a basketball goal base lie under my yard, maybe to be found by whomever buys the house in future years. Out of sight, out of
The boom to mast clamp won't affect the resonance of any parasitic element... unless you're implying that one of the elements would have to pass right through your extended mounting plate? -- 73 from
Almost zero - don't worry about it. In more detail: if the element ran through the centre of the boom, electrically connected on both sides, the correction would be about 0.15x the boom cross-section
We use to often go to the top of the highest building (921 feet, floor 73) in downtown Dallas to service our ATV repeater transmitter. This building does indeed sway in high winds. If fact, the eleva
After running the knife down the side, it does peel off, though with some effort. To make it clear, the heat shrink/glue treatment is only applied to ONE connector at a time, to reinforce and seal th
Hot melt glue, from a glue gun. It can be used with plain heat shrink sleeving, or to fill gaps inside sleeving that already has a thin lining of glue. For "heavy duty" applications, almost all conne
http://sm2cew.com/plow.htm -- 73 from Ian GM3SEK http://www.ifwtech.co.uk/g3sek _______________________________________________ _______________________________________________ TowerTalk mailing list
This page will give you a general sense of the tradeoffs: http://www.ifwtech.co.uk/g3sek/stacking/stacking2.htm -- 73 from Ian GM3SEK http://www.ifwtech.co.uk/g3sek __________________________________
I wish the steel did disappear as quickly as that! A previous owner of this QTH set up a field test about 20 years ago, and the steel is still as sharp, rusty as ever. The mesh isn't strong enough to
Also, go to .....http://www.arrl.org/qexfiles/ and download TRAVANTY.ZIP A good program also. Details of program at http://www.arrl.org/qex/1123.pdf _______________________________________________ __
I have a Visio Plasma TV and it is a real good RF generator. Look at this website and it may shed light on your problems if this is the case.... http://www.eham.net/articles/4285 Hello folks! I insta
I had a 50 ft. foldover and the lower guy wires would move quite a bit when I cranked it over even w/o a load. I would go with the guy wires like the instructions say. A pain since there are 4 guys i
Back when I became a ham, towers were kind of rare and pricey. I saw a lot of 30 to 40 ft. telephone poles used to support beams. Even then, they were readily available for next to nothing. Problem i
1. Check the SWR with an antenna analyser connected directly to the antenna. The DC measurements were a good place to start, but they don't tell you everything. 2. If there are N connectors involved,
Not if you open it inside a big, deep roasting tray. Turn the whole rotator upside-down first, then remove the lower ring. Let the balls from the lower race fall into the tray, and then turn the whol
The plane of polarization is not only rotated, but under some ionospheric conditions it can also become de-polarized - in other words, 'smeared out' - by multipath effects. With a completely depolari
I am looking at getting on of these and would like some comments on anyone that has used one. At present, I have up a CL-33 and a A3WS above it to cover the 5 bands from 10 to 20 M, but want one ante
If you are talking about HF yagi's, I have had good results by laying the antenna's reflector on the ground and pointing it straight up. Find the resonance and adjust as needed. Then stick it up on t