[amsat-bb] Re: Coax run on the Beams

[i8cvs]

----- Original Message -----
From: "Prathap Kumar" <vu2pop at gmail.com>
To: <amsat-bb at amsat.org>
Sent: Tuesday, March 18, 2008 9:34 AM
Subject: [amsat-bb] Coax run on the Beams

> Hi All
> I have a question regarding the coax run on the boom or cross arm
supporting
> the Vhf and Uhf beams.
> All these years I was feeding the coax to the beams running it backwards
and
> allowing it to drop behind the relector downward as suggested, that it
does
> not affect the performance.
>
> But most pictures I see these days have the coax being run forward towards
> the centre and supported on the crossarm and brought downward to the AZEL
> rotor.
> Now does these different coax runs have any  effect on the performance
> forward gain or radiation  pattern ?
>
> Just a few days ago I had a tough time on the new tower lifting the 2
beams
> with coax weight at the back and placing it on the rotator.
> Hence if it does not matter much I plan to change the coax run towards the
> centre and bring to the crossarm holding the V and U cross yagis.
>
> Looking forward to your valuable suggestions and knowledge.
> Best 73
> Pop
> VU2POP


Hi Pop, VU2POP

Read please the following recommendations:

http://www.g6lvb.com/fibermetalboom.htm

73" de

i8CVS Domenico