[TowerTalk] Co-ax and Rotor Control cables inside PVC?

[David Gilbert]

I'm not sure that the LMR400 would need it, but I've done the exact same 
thing for other cables (rotator control, etc).  I wouldn't use thin wall 
PVC, though ... it generally has horrible UV performance and in the 
Arizona sun it becomes brittle and breaks in less than one year.  At the 
very least I would recommend that you use the thicker Schedule 40 stuff 
.. it will discolor but otherwise holds up fairly well.  The best choice 
would be to use gray electrical PVC conduit and it isn't much more 
expensive (Home Depot electrical department).  The bell-shaped ends also 
make for easier coupling. 

73,
Dave   AB7E


Cal Zethmayr wrote:
> I'm working on plans for my 110' tower to be installed early this summer.
>
> Considering installing some thin wall PVC pipe inside one corner of the tower from near the bottom to the area at the top where the rotor, and an Ameritron coax switch box will be mounted.  Then put one run of LMR400 in it, the cables for the rotor and switch box control.
>
> Purpose: long term protection from any UV, weather etc.
>
> Top of tower  will have a HF beam, 6 meter beam, and 2 meter quagi. 
>
> Anyone else ever tried this? any ideas or reasons (other than the cost) not to try this?
>
> Cal Zethmayr
> W4GMH at cox.net
>
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