[TowerTalk] Long feedlines

[Rob Atkinson, K5UJ]

For the 2 or 3 hundred foot run out and up the tower, I'd definitely 
consider some kind of andrew heliax (not the stuff you have to pressurize), 
the widest diam. you can afford, especially for the 2 m. antenna.   I 
wouldn't stop at the tower base--I'd go right up it to the point where the 
rotator is before a transfer to something that will loop around and flex.   
Some guys swear by the coax that's like RG213 only 1 inch diam. (RG18? can't 
remember) and while it can handle a lot of power,  I've seen it way up there 
in price, > $10/foot and it's heavy, and the dielectric wants to slide 
inside because of its weight when going vertical.  I'd try heliax first.  
price it at www.davisrf.com

for the tv ant. on the mountain, how long is the run?

rob/k5uj

btw, for a long long run, as in 1000 ft. or more, on HF and below, from a 
loss standpoint, the best thing is probably still open wire feed.

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