Re(2): RE: [Antennas] Quick Question. I hope.

Wed Nov 1 12:35:49 EST 2006

JimMiller at stl-online.net writes:
>NOT true. ONLY "Collinear" antennas do not need a ground plane. ALL
>other
>mobile antennas or verticals require a ground plane. I think you have
>just
>realized your SWR problem. Provide the ground plane and you should have
>the
>SWR come in. The ground plane (at least for test purposes) can be simply
>3
>or 4 wires of 19 inch length connected at the feed point to the shield
>side
>of the coax.
>>73, Jim

OOPS! Jim, you are not tracking here.
I am not the originator of the subject...but I do have to correct myself
about my statement about 5/8 wave ants...I obvioulsy had a mental bloc,
because I do know better. So...
I suppose only classic "verticals" (Verticals can be mounted horizontally,
and are not, then, "classic verticals") require radials or groundplane,
so,...
 1) 5/8 wave horizontal dipoles, or whatever other 
 horizontal types, don't need them.
 2) J-Poles are 5/8 wave and do not require
 radials or groundplanes.
 3) I don't know about vertical colinears.
But, I still don't at all understand that 12 db loss just from being
indoors....
David B.
W7DBH -Mobile Only
10 AM - 10 PM Pacific Time