[TowerTalk] TK-34 won't tune

[Jim White <jim@coloradosatellite.com>]

I'd appreciate any thoughts on how to determine the problem with a TK-34.

I purchased a used TK-34 that was just taken down.  The boom was in two 
pieces, each element was removed from the boom but not otherwise disassembled.

I've put it back together on saw horses but the tuning is way off.  With 
both driven elements connected the resonance points are way off and none 
are below about 2 X 1.

With the straps connecting the two driven elements removed so only the 
first driven is connected there are nice low SWR points but they are in the 
wrong places as follows.

1.1 X 1 at :
22.67
16.4
15.36
1.2 X 1 at
31.66

All other frequencies are above 3 X 1.

We have checked and tightened all connections and straps.
None of the cap insulators are broken.
The 4X1 balun tests shows continuity between the center conductor of the 
coax fitting to one side of the T match, and from the shield to the other 
side of the T match.
We have measured all dimensions against the manual and they are right on.
We have looked carefully at all assembly instructions in the manual and the 
antenna is put together correctly.
Nothing is bent or has ever been bent.

We are testing with an MFJ antenna meter that we verified good against a 
known good triband beam.

Any thoughts on how to zero in on the problem, what the common problems 
are, what experience others have had, etc. would be appreciated.

Jim
WD0E
jim@coloradosatellite.com


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