[SixClub] DB Products DB4032 Mods for FM Repeater Use?

[Robin Midgett]

Hello,
I'm seeking info and/or help from anyone with experience in modifying a set 
of DB4032 cans for use as a duplexer in a 6m FM repeater with a 1 MHz. offset.
These cans are originally specified up to 50 MHz, with a .5MHz offset. 
Currently I can move the cans in the low side of the duplexer up in 
frequency as high as 52.1 MHz, but I need them to move to 52.33 MHz. I'll 
also need to move the high pass side up to 53.33 MHz.
There are coaxial stubs connected to each can of the duplexer to deepen the 
notches. One side of the duplexer has shorted stubs, the other has open 
stubs. All the coax used in the connections is RG-214. I presume I'll have 
to modify the lengths of these stubs as well.
It may be better to save this set of cans for use with a .5 MHz offset 
machine lower in the band; don't know.

Any info is appreciated.

Thank you,
Robin Midgett K4IDC
2004-2005 President, SVHFS
www.svhfs.org