Topband: Fsj4 series heliax around a rotor

[Cecil]

FSJ Heliax...or superflex as it's known in the industry is not rated for outdoor use.  The outer jacket is so thin it metal fatigues easily.  It's great for low loss jumpers indoors but I would never use it for a rotor loop.

Cecil
K5DL

Sent from my iPad

> On Jun 7, 2014, at 9:03 PM, Bill Wichers <billw at waveform.net> wrote:
> 
> Sorry for this not being entirely topband-related, but I'm hoping some people here have tried this. I have a beam on a rotor than has lmr400 feeding it now. The cable has been damaged by critters that like snacking on polyethylene.  I'm thinking about replacing the lmr400 with fsj4-50b heliax since I have several thousand feet of that on a reel. I'm also thinking that the corrugated copper shield will resist critter damage better than the braid in the lmr400 cable. 
> 
> Has anyone had any issues with fsj4 series heliax in rotor loops? I'm interested to know if the flexing causes any fracturing issues with the corrugated copper shield in the cable. I'm thinking it will be ok if I make the loop big enough and I'd rather not splice in a piece of lmr ultraflex if I don't have to. 
> 
> Anyone out there have some experience they can share?
> 
> -Bill
> 
> Sent from my iPhone
> _________________
> Topband Reflector Archives - http://www.contesting.com/_topband