On Tue, 16 Dec 2008 17:00:38 -0500, Eric - VE3GSI wrote:
>I suspect you would need a pile of ground radial to be effective with a 1/4
>vertical, while the loop might be a more wire friendly way to go and
>possibly safer. Not being a 160 meter kind of guy, I suspect others will
>verify the number of radials required for balloon vertical antenna.
Not with an end-fed vertical dipole! At least two ways to do that. See
N6LF's website (google to find it) and my variation on his idea.
http://audiosystemsgroup.com/publish
Select the piece on coax chokes, then go to the slides showing an endfed
vertical dipole hanging in a redwood using two big coax chokes as end
insulators. I built this using Pasternak RG6 as the coax and #12 as the wire
element, and it handles legal power. Depending on the balloon, this is
feasible on 80 and 40, maybe even 160.
W4EF has done a 160 vertical on a salt lake bed and had a pretty good
signal. Perhaps he'll tell us what he did.
73,
Jim K9YC
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|