One question you asked remains; from what points are the lengths of the
individual harness components measured?
Dave, W7GK
Bill Photinos <[EMAIL PROTECTED]> wrote:
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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