[TowerTalk] hi-pwr balun for tri-band quad available anywhere?
VR2BrettGraham
vr2bg at harts.org.hk
Fri Mar 11 21:49:03 EST 2005
K7VS asked:
>Does anyone know of a high power balun for tri band quad that will
>match or
>be somewhere in the ballpark to match the three different impedences
>for
>10/15/20 meters?
As in feeding the three loops simultaneously? If so, not much point
doing so as the pattern will be mucked up with the parallel drivers.
I have opted for RG303 & beads for choking the feeders on a 2-el
5-band LBQ here. The 12 & 17m drivers are in parallel with the
15m driver, but unlike paralleling 10/15/20, the pattern looks good
(was able to get good QTF on a radar intruder we're chasing in
Asia-Pacific on 12m - good, symmetrical nulls off the main lobe &
pretty clean looking F/R).
If you are not paralleling the drivers, then hit delete. ;^)
73, 9M6BrettGraham
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