Indeed, my M Squared cross polarized Yagis need to be on a fiberglass boom. The coax from each of them heads straight back into the air and forms a loop down to the mast several feet below the elevation rotor. E mail me direct and I'll send you photos if you want. You'll be happier with a fiberglass boom. 73, Pete WA6WOA
--- On Wed, 4/22/09, Joe nss@mwt.net wrote: From: Joe nss@mwt.net Subject: [amsat-bb] Re: Cross Boom To: "Billy Simpkins" bsimpkins31@dishmail.net Cc: amsat-bb@amsat.org Date: Wednesday, April 22, 2009, 7:06 AM
It all depends on how the elements are mounted.
If at 45 to 90 degrees from the crossarm, no propblem and use anything,
But if in the same plane then need insulated crossboom,
But then if you go insulated then do not run the feedline along it either or you just defeated the purpose of the insulated boom.
Billy Simpkins wrote:
Is a fiber glass or some other non-conductive material necessary for a
cross boom? What or the advantages and disadvantages versus a metal one?
Thanks, Billy KF0CK _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
_______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb