----- Original Message -----
From: "Gregg Seidl" <K9KL@centurytel.net>
To: <TowerTalk@contesting.com>
Sent: Wednesday, June 14, 2006 3:07 AM
Subject: [TowerTalk] coax stubs
> Can someone please refesh my memory.You make a shorted 1/4
> wave for 20 meters and it blocks what?I only have to do
> this once a year for FD so I tend to forget!!??We are
> planning on running 20M,40M and 75/80M plus 6M.20 will
> switch to 80 when the sun goes down.40 will stay on all
> the time unless 6 opens up.Thanks Gregg K9KL
---------------------------------
Well, a shorted .25 stub for 20 passes 20 and rejects 10,
not very valuable.
Here is a better trick to remember:
40m .25 stub (23' @ vf=.66)
shorted, passes 40/15, rejects 20/10
open, passes 20/10, rejects 40/15
Make one stub, use a switch to open/short the tail.
Dave Hachadorian, K6LL
Yuma, AZ
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