As I recall, signals at VHF/UHF tend to become horizontally polarized after propagating long distances, no matter what the polarization of the transmit antenna. That's why horizontal polarization is traditionally used for SSB/CW (DX-oriented communications) and vertical for FM (mostly local communications).
Al N1AL On Sun, 2007-12-30 at 15:33, Mike Scott wrote: > I am building a 3-element 6-meter quad while waiting for my 2nd batch K3. > Before final build a new thought... > > Instead of building a quad I could alternatively make the spreader arms a > little longer and configure two cross-polarized 3-element yagis. The thought > would be to drive two receivers in polarization diversity. > > Does anyone have any experince with the value of polarization diversity at > 50 MHz? I am inexperienced on this band. I know everyone goes horizontal > polarization for VHF weak signal work but once the signal gets refracted > back to ground level the actual polarization may be rotated. > > BTW, Lyle have you thought about ways to optimumly combine diversity > receiver outputs other than just piping them into seperate ears? I could > imagine actually calculating a time averaged received polarization angle and > differential delay between channels and then combining... > > > Mike Scott-AE6WA > Tarzana, CA (DM04/near LA) > QRP-ARCI #12326/ KX1 #1311/ Swan 350C > > > > > No virus found in this outgoing message. > Checked by AVG Free Edition. > Version: 7.5.516 / Virus Database: 269.17.12/1202 - Release Date: 12/29/2007 > 1:27 PM > > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
