Re: [amsat-bb] UO-14 polarisation - Arrow antennas

[Arrow146@xxxxxxx]

>From what I understand, the down link is always 90 degrees 
from the up link.  That is why the antenna is made that way.

73 Al Lowe N0IMW 
<A HREF="http://members.aol.com/_ht_a/Arrow146/index.html";>ArrowAntenna.com</A
>



In a message dated 9/5/00 1:12:05 PM, pa3hil@AMSAT.Org writes:

>Thanks for the replies to my question
>
>about the 90 degree polarisation difference
>
>between the two beams on the boom
>
>of an arrow antenna.
>
>
>
>I understand the need to reduce coupling
>
>between the two, but I'm curoius as to
>
>the influence polarisation difference 
>
>has on performance,when making a 
>
>QSO via UO-14.
>
>
>
>Do operators using this antenna simply
>
>transmit with a 90 degree polarisation
>
>difference (to their Rx signal), or do 
>
>they "twist" the antenna when transmitting
>to correct this?
>
>
>
>If the first case is true, is this an advantage?
>
>(Is it worth remounting my own antennas
>
>so that they too, have a 90 degree difference?
>
>Actually, it's obviously worth trying it anyway!!!)



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