On Thu,6/11/2015 1:16 PM, Mark Spencer wrote:
I have nagging doubts about using cables with a solid foil shield for a rotor
loop.
I would share your concern.
I do like the idea of double shielded cables so RG213, RG 8 etc are off the
table for now.
I wouldn't worry about "double-shielding," but rather the quality of the
shield. Look through the Belden catalog for an RG8 or RG213 with a
robust copper braid shield and stranded center. Look at 8237, 8268,
8214. or 9251. All are 97% shield coverage. Check out vendors like
Markertek. 9251 has non-contaminating jacket. 8214 is #11 center; the
others are #13.
You don't need a lot of coax for the rotor loop, so cost is hardly a
factor -- I'd be more concerned about finding someone to sell you short
lengths. :)
73, Jim K9YC
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|