There is an "ultraflex" version of LMR-400, with the UF suffix. It has a stranded center conductor and wont break as quickly as -400 when flexed repeatedly. I use jumpers made of this between the antenna and mast mounted preamps, around the rotors.
73, Drew KO4MA
Sent from my iPhone
On Mar 31, 2016, at 9:35 PM, Scott scott23192@gmail.com wrote:
I hope to put up my first rotating antenna soon and just received a nice length of LMR-400 to use. (regular, not "super-flex")
Having never seen LMR-400 before, I did not know how flexible it would be. I would call it "medium"... not stiff as a pipe but not floppy, either.
My question is whether anyone using LMR-400 can recommend whether I should attach it directly to my antenna (with slack loops, of course)?
Or, should I get a few meters of something more flexible to attach to an antenna that needs to be free to rotate 360 degrees?
If a jumper is recommended, I would appreciate suggestions on what cable would work best for the task. The frequency for this project is 70cm.
Thanks!
-Scott, K4KDR Montpelier, VA USA _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb