[TowerTalk] Quad antenna matching which is best gamma match or using coax...

[Jim Brown]

On Wed, 16 Jan 2008 14:25:12 -0800 (GMT-08:00), 
larryjspammenot at teleport.com wrote:

>Are there any advantages to using a bead balun (like the stack of 
>Palomar beads) right at the feedpoints for each band on a multiband
>quad?

Yes, but those beads are expensive (relative to value) and a 
toroidal choke is FAR better. See

http://audiosystemsgroup.com/RFI-Ham.pdf

http://audiosystemsgroup.com/NCCC-CoaxChokesPPT.pdf

73,

Jim Brown K9YC