That depends on what distances you are trying to work. 200-600 miles, the horizontal part may provide the most useful radiation. My ARRL Antenna Book suggests 160-170' feet may be the easiest to load
Many years ago I had a 64' freestanding tower with a 3el triband beam (TA-33) on it. The base was only 2 cu yards of concrete. As far as I remember, that was all the manufacturer (Heights) recommende
I can certainly understand that for a heavy duty tower, but the Rohn BX-64 is only rated for a 6 sq ft antenna (probably less than a TA33 and rotator) yet Rohn specs a 5 cu yard base. Ken ___________
My concern with attaching a tower to the house is that if the tower moves back and forth just a slight bit in the wind, will that eventually loosen the framing on the house? _________________________
Someone asked how to connect such a resistor inline. Solder inside of a PL-259 and plug that into a coax T-connector. Ken _______________________________________________ _____________________________
"terminated in a common bus". I take that to mean they are tied together rather than overlap without touching? Ken _______________________________________________ ____________________________________
The old ARRL Antenna Book (1964) shows it on page 214. "It consists of two folded dipoles spaced 0.1 wavelength apart and driven 135 degrees out of phase." I can probably scan the pages and email the
I don't think a riding mower can bury them. A big tractor (40HP) with a subsoiler can rip a rough trench. A trencher like they use for cable and telephone lines can dig and bury at the same time but
I would not use galvanized pins for holding down copper wire. Cut some stiff copper wire (such as #10 or #8) and use that for the hold downs. Ken _______________________________________________ _____
I assume that the guy will pull THROUGH undisturbed soil, not through the backfill. Also, it will only cost you another $60/hole to double the concrete. You might have a minimum delivery amount anywa
Don't forget that the antenna will only work well if it was put up in a howling snow and sleet storm. Antennas put up in good weather will not get out of the back yard. For those of you down south, m
Lowe's has 250' rolls but I don't know about #10. They also sell wire by the foot. You could always buy the 500' spools and use what's left over for ground radials :-) Ken ___________________________
You guys are talking apples and oranges: One of you is speaking about the "AVERAGE VERTICAL" and the other is speaking of a "GOOD VERTICAL": Those aren't the same things, guys! Ken __________________
That should work out pretty well. I have had the same thoughts about a Hy-Tower if I ever got one. No problem sharing the radial field. If possible you might increase the field, it can only help, esp
Gary, Look at the current distribution of a quarter wave vertical. You will notice that most of the current comes from the lower half of the antenna. By using an inverted L, you still get that high c
I've often thought about interior rust but I've never heard of anyone doing anything about it. Years ago I had some off brand tower which I spent many hours removing rust and repainting. I have often
Well I suspect Rohn knows what they are doing. They DO give 70, 80, 90 mph ratings for the G series of towers, but not the BX series. Maybe they do know what they are doing...and know that the number
Not glass but many farm supply stores have screw in porcelain insulators for electric fence wire at a reasonable price. Here is one: http://www.southernstates.com/catalog/p-8590-dare-heavy-duty-large
Doesn't Rohn have optional foot braces for the top section? Ken _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contes
Scotty, If the wood fence has good solid wood posts, you can tie a 10 or 20 ft mast to it. If you can find 20' sections of pipe or chain link fence top rail, that's great. I can't find that around he