Jeff,

That's quite possible, but I did not check it because the Sinclair harness
was completely made up of Delta connectors crimped onto RG-214/U cable.  The
harness came preassembled as one long piece of coax with five N-male tees
crimped into place, with N-male connectors on the ends going to the
transmitter and receiver.  I do remember that the cables between the antenna
tee and the first cavities were about the same distance longer as the
between-cavity jumpers were longer, for the low-split.

73, Eric Lemmon WB6FLY


-----Original Message-----
From: [email protected]
[mailto:[EMAIL PROTECTED] On Behalf Of Jeff DePolo
Sent: Saturday, January 21, 2006 6:21 PM
To: [email protected]
Subject: RE: [Repeater-Builder] Re: Duplexer retune / recoax

Well, my guess is that the high insertion loss you saw was not due to the 
incorrect cable lengths *between* adjacent cavities, but rather between the 
first cavity on each side and the tee.  With that length being wrong, the 
two sides of the duplexer are not fully decoupled, i.e. the reject notch on 
one side isn't being "echoed" exactly 1/4 wave away back at the tee.

I'd bet that if you only increased the lengths of the cables between the 
first cavities and the tee that the measured performance would have been 
comparable to replacing the entire harness.

                             --- Jeff




 
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