Thanks to all who have replied. You have been a great help.
Have calculated the harness length for my freqs to be ~15.9" when
taking into account the velocity factor of the interconnect cable etc.
Believe it or not the original cable on our cans is RG-213 and not
RG-214. We are replacing with high quality double shielded(100%) cable.
FYI the harness is currently $311 from Sinclair. It will ending up
costing us around $100 in parts to assemble our own harness.
Significant difference. Hope to have it completed and up on our DSTAR
repeater in a couple of days or so.
Thanks again & 73s
Bill - W4RVN
Eric Lemmon wrote:
Steve,
That trick works fine for offsetting the harness tee from the loop assembly
in the can, but it doesn't do a thing for increasing the spacing between the
tees. The later-design Sinclair Q202-G duplexers come with a one-piece
harness that is made up from sections of RG-214/U cable with five crimped-on
N tees and two crimped-on straight N plugs. The tees are made by Delta
Electronics, and are intended for one-time, permanent installation. Even if
great care is used in cutting off the ferrules, it is very easy to damage
the tee during the process.
Although it is time-consuming to dismantle the high-split harness and
re-build it with longer cable sections between the tees, the club chose to
buy the harness from Sinclair. It cost about $125 five years ago. Once the
new harness was installed, the Q202-G duplexer tuned up perfectly in the 2m
band.
73, Eric Lemmon WB6FLY
-----Original Message-----
From: [email protected]
[mailto:[EMAIL PROTECTED] On Behalf Of Steve S. Bosshard
(NU5D)
Sent: Wednesday, December 26, 2007 1:06 AM
To: [email protected]
Subject: Re: [Repeater-Builder] Sinclair Q202G duplexer Conversion
When I moved some 155 mhz duplexers to 146 I found adding a type n elbow
in places where I could not get the notch to move made just enough
difference. This adds about an inch without having to rebuild the
harness, or else a nice way to test cable lengths. Also if adding the
elbow makes things worse, then you might want to cut and try. 73, Steve
NU5D
Eric Lemmon wrote:
Bill,
This topic has been addressed several times in recent years. There is no
"formula" for the harness; Sinclair makes two harnesses, one with 12"
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