Dan Hancock wrote: >>Date: Wed, 12 Nov 2003 18:47:59 -0000 >> From: "Laryn Lohman" <[EMAIL PROTECTED]> >>Subject: Re: Static / desense problems >> >>Hmmmm-- what about the case where your single >>shielded >>cable runs >>past a high power paging antenna, > > > Unlikely, since that stuff is normally at the TOP of > the tower, but special circumstances require special > solutions.
Not true-of the tower mounted antennas in the system we maintain, about as many are mounted somewhere in the middle as at the top. > > I have never seen this. But I do have an acquaintance > who wondered why all the jumpers on his duplexers made > noise when he touched them. Of course failing to > solder the shield in the PL259's had something to do > with that. heh > > >>Bottom line-using solid >>shield coax is almost never a bad choice. >> >>Laryn K8TVZ > > Never said it was. Sometimes people can't afford it > though. If I was doing a building-top installation > with a short feed-line run, had a limited budget, and > had to choose how to spend my money, I'd put more into > the antenna and use RG213 before I would skimp on the > antenna just to buy 30' of heliax. > > Dan N8DJP Probably true for something I put up on my own, especially if I needed to get it up and 'making noise' quickly, but I would want to work towards better, 100% shield feedline as fast as posssible. And I would expect, and be the first to tell users, that it's not going to work as well as it could with better coax, that there will probably be some desense or noise on windy days, etc. -- Jim -------- "The higher you are, the harder it is to pump." -Cleveland Mayor Jane Cambell, after the big black-out of 2003 Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
