[TowerTalk] Anyone have experience using Davis bury-flex as their rotor loop

[Jim Brown]

On 5/18/2020 4:47 PM, n6sj at earthlink.net wrote:
> I'm using Davis RF Bury-flex for my rotor loop.

I think that's a great choice, but only the guys who climb my towers 
know for certain what's up there. :)

LMR400UF is a bad idea, because it does not do well with UV. I bought 
some from an SMC contester at a Chicago hamfest years ago after he 
learned that. I learned it years later when I used some of it in my 
outdoors in my station out here in W6.

In the second edition of his book on Interstation Interference, W2VJN 
noted that he had observed deterioration of stubs made from LMR400 that 
had been stored in his garage for a number of years. He blamed it on 
corrosion between the braid and foil shields. The performance of stubs 
for harmonic suppression depends on them placing a near short circuit 
across the line at the harmonic frequency. Any increase in the 
resistance of the shield and/or the center conductor will make the stub 
less effective.

73, Jim K9YC