[TowerTalk] A3S tribander gone bad

Rob Katz rob.katz at thelegacycenter.com
Sun Nov 14 17:08:01 PST 2010


I am putting back up a Cushcraft A3S tribander after it was on the ground
for several years.  I've cleaned it and rebuilt it, triple checking the
dimensions.  Installed at 45 feet, I get the following MFJ 269B readings for
best resonances: 10m - 26.6 MHz, SWR=1.8, R=38, X=33; 15m - 21.55 MHz,
SWR=4.3, R=8, X=21; 20m - 14.95 MHz, SWR=2.9, R=37, X=73.

These resonances are very sharp, and clearly not right.  Any ideas on how to
test this?  Is there a simple way to test each trap?  While I didn't open up
each trap, I did soak them and thoroughly rinse them to try to clean any any
stuff that might have been inside.

Thanks and 73,
   Rob, KA1ARB

-- 
Rob Katz, Director
Legacy Center, Inc.
(919) 678-6000 x106   (919) 678-6015 fax
www.TheLegacyCenter.com




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