In a RF screen room doing Tempest testing for the CIA. The results convinced me to go hardline at home. I try to leave gut feelings and magic out of the equations ____________________________________
I didnt want to belabor the forum with all the details last night and my time was limited. As mentioned we also carried a leakage tester and that was used extensively while also isolating decks and
I never stated that heating was ever a part of this thread, perhaps you are referring to someone else. However I have come close to burning my hand once many years ago while at a friends home trackin
Hi Ian, nice to here from you, its been ages! As far as the ship problem "Not at all" still holds. The network did not use PL259's, they are not even constant impedence. The installer used inferior c
Thank you for that explanation Roger. Since there was no question about the connector integrity and the long lengths laying in cable trays were next to all types of other cables, RF and power, your e
My manual is pre Internet and I cant find anything thru Google. Distributors in the UK are no help either. I need a few small parts for the Create RC5A-3. Thanks Carl KM1H ___________________________
I was last there in 2003 after delivering a hot rod I built to a buyer in Murray, KY. There was no Voyage yet but I did ride Raven and Legend. Having grown up a few subway stops from Coney Island I h
Hey Dick, I beat you to retirement! Ive been up a free standing Universal tower ONCE and I'll never do it again. As you know Ive been climbing since I was a teenager and as high as 650' but Ive never
One thing to remember about insulated wire is that it has a velocity factor at RF. If memory serves it is about 97-98% for PVC and Ive no idea about Teflon. Carl KM1H ________________________________
The ones mentioned are $400 and $1145! Ouch! Consider feeding the tower as a folded unipole, all you need is some copper wire. Ham literature shows a single drop wire; commercial AMers use 3 to 6 and
Never used a quad but the best wire Ive used for 80/160M dipoles and verticals is good old #12 stranded and insulated electrical wire. Since it is soft drawn you need to cut to approximate length and
With copper scrap pushing $4 a lb it might be reasonable for 6 or 10M Carl KM1H. _______________________________________________ _______________________________________________ TowerTalk mailing list
It begs the question: Was the tower or guy wire sitting in hurricane salt brine water? In over 45 years of working on commercial and ham towers, many in a salt air enviroment, Ive never heard of a to
First of all, ANY tower that is installed by burying a section should be suspect UNLESS you are absolutely sure that the legs have plenty of drainage. Drilling a small hole in the legs a few inches a
If it is a buried section then that bolt may be 7' above ground. Carl KM1H _______________________________________________ _______________________________________________ TowerTalk mailing list Tower
If you read my comments again you will find that I said to use that same base plate. Sorry, but I didnt think it was necessary to have to repeat myself about the pin. Carl KM1H ______________________
Placing a current balun at both ends could create more problems if the distance between them is resonant on a frequency of use. It is pretty hard to predict any resonances especially with coax strapp
If you are more concerned about potential liabilities then I suggest that YOU hire a lawyer and a PE to examine all documents and be present at your installations. In the meanwhile those of us that c
Ive taken down a few ham/CB/2 way towers that were unsafe to climb and the customer would not pay for a crane. These came down very fast with the aid of a Sawzall and a cable cutter. Carl KM1H ______
Kano Labs Gearope is popular in boatyards and on towtrucks/rollbacks in our New England coastal enviroment. Carl KM1H _______________________________________________ _________________________________