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

[Chris Boone]

Contact DB (Now owned by Andrew) and they can give you the info you
need.
The page for Andrew is www.andrew.com
The phone number I have is : (214) 634-8502

Chris
WB5ITT
(personally I prefer split site rptr or split antennas on 6 so you can
run the noise blanker)

> -----Original Message-----
> From: sixclub-bounces at mailman.qth.net 
> [mailto:sixclub-bounces at mailman.qth.net] On Behalf Of Robin Midgett
> Sent: Monday, December 13, 2004 4:54 PM
> To: sixclub at mailman.qth.net
> Subject: [SixClub] DB Products DB4032 Mods for FM Repeater Use?
> 
> 
> 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
> 
> 
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