[amsat-bb] Re: Question adding RHCP to Cheap Yagi

Greg D. ko6th_greg at hotmail.com
Fri Jan 2 11:30:55 PST 2009

Hi Curt,

For CP you would either have the elements offset and feed them in-phase, or have them not offset and feed them with the phase delay.  You want to create a spin to the wave as it travels down the boom.  I expect doing both would make a mess out of things.

Greg  KO6TH

> Date: Fri, 2 Jan 2009 10:19:23 -0500
> From: cptcurt at flash.net
> To: amsat-bb at amsat.org
> Subject: [amsat-bb]  Question adding RHCP to Cheap Yagi
> Good Morning All:
> I've been using a 10el version of Kent Britain's Cheap yagi for my 70cm 
> downlink antenna.  It suffers from deep fades so I am going to add the 
> second yagi with physical offset to get to RHCP in the x config.
> Question is:
> normally I would reverse the coax connections to a dipole driver but 
> this is a hairpin (half of a folded dipole. )
> Do I reverse the connections as normal?  Kents instructions just say 
> offset the elements and feed in phase.
> Thanks
> Curt
> KU8L
> _______________________________________________
> Sent via AMSAT-BB at 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

Send e-mail faster without improving your typing skills.

More information about the AMSAT-BB mailing list