If you have a steady hand or a drill press you can make your own from large stainless steel washers available from McMaster-Carr. P/N 92141-A040, Stainless Steel flat Washer 1-1/4" screw Size, 1-5/16
For those of you interested in using the screen supports for masts here's a good place to start. http://virtual1.powersrvcs.com/~www.capcod.org/mastinstr.html The fiberglass and aluminum masts are in
The commercial stations where I have worked have the towers protected at each tower to the ground system. The transmitters are also grounded to the ground system. Surge protectors are on the power at
If only the junk today was made like these... I have one and it handles 500 watts easily. Tune it at low power and get a good match and it'll handle more power than the tuners available today. These
Yes, One was 275W and on 1000W. Both rated for AM. _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http
If you are using MS-44 mast sections the mil-spec is 4 guys at each level anchored 25 ft out from the base. The guys would be at the top of the 3rd, 5th, and 8th section. Here's a link to a sight tha
Alain, I forgot to mention that you could guy 30 ft. out from the base if you want. Also, if you buy dacron rope in 500 ft. spools one spool will make a complete set of guys for one mast. You still n
Very sad and a very huge loss. The work that he has done and all of us who have learned from it will really miss him. It is with a heavy heart and infinite sadness I report the passing of LB Cebik, a
As I understand it Antennex is maintaining the site and preserving all of Mr. Cebik's work. All one must do is sign up by using the link provided on the original cebik.com web page. It is the middle
Couldn't have said it better Dan. Antennex has a bunch of free articles and online books on the site as well as the pay-for things. All of L.B. Cebik's work is there. I too would like a no password t
I do not know the maximum spacing. I guess it is just like anything else with RF frequency and field strength dependent. I used one designed by one of our consulting engineers to keep FRI out of the
My sympathy to the families involved in this tragedy. It is very sad when someone dies doing something they enjoy as their hobby. We must all remember first things first with antenna, mast, tower and
73, Bill AI4WM _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/list
Michael, All residential primaries are at 7.2kV to 7.6Kv and some may be a bit higher. If there is one or 3 conductor on the pole and a transformer feeding residential drops the high wire is at a pot
Mike, I had some similar thoughts about the getting drunk and climbing the next day. Show was sort of disappointing. Too much social bull and not enough climbing. I wish they would have at least had
That is exactly what they do. Why would anyone go to college to learn toe write and report the news on a 6th grade reading / comprehension level? I know. That is one of the first things my news writi
Super glue will most likely just oxidize on the plastic used to make these coils. Duco Cement or hot melt glue are probably better. I used GC service cement and Duco cement quite often on repairs wit
Kenny, We use surplus fiberglass and aluminum poles for field day and I also use several AB-155 A/U surplus aluminum masts. Here are some links. http://www.freewebs.com/workingstiff/500spooldoublebri
Art, First, do not use braid or anything like that. As it gets wet it will corrode between all the strands. Even protected in heatshrink or other material water will wick into it. I use copper strap
The service entrance grounding conductor required by the NEC is for safety, not rf grounding, not lightning protection, only safety. Properly installed grounding conductors are to prevent a fault cur