Sent: Saturday, July 19, 2008 12:27 AM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Duplexer Tuning / Desense
Mike, that RG-8X is the first thing I would get rid of. It is typically
only %95 covered in shield braid, and that is a path for a lot of leakage.
The rule
Get rid of the rg-8x and get some double shielded cable. Even a couple of feet
of single shielded cable can cause much desense.
Depending on the sensitivity and power level, a 4 cavity duplexer is just
barley enough for a 600 KHz spacing on 2 meters.
--- On Fri, 7/18/08, Mike Besemer
Thanks to all who responded so far. I spent a couple hours at the site
today doing prep work and as soon as I got home I spent a few minutes
working on the repeater. I found that there was JUST enough room for a UHF
to N adapter and an N elbow in back of the transmitter, which allowed me to
-Builder] Duplexer Tuning / Desense
Get rid of the rg-8x and get some double shielded cable. Even a couple of
feet of single shielded cable can cause much desense.
Depending on the sensitivity and power level, a 4 cavity duplexer is just
barley enough for a 600 KHz spacing on 2 meters
[EMAIL PROTECTED] wrote:
From: Ralph Mowery [EMAIL PROTECTED]
Subject: Re: [Repeater-Builder] Duplexer Tuning / Desense
To: Repeater-Builder@yahoogroups.com
Date: Saturday, July 19, 2008, 9:05 AM
Depending on the sensitivity and power level, a 4 cavity duplexer is just
barley enough for a 600 KHz
Mike, that RG-8X is the first thing I would get rid of. It is typically only
%95 covered in shield braid, and that is a path for a lot of leakage.
The rule of thumb in the whole repeater cabinet is double shielded RG-214 or
RG-142. That takes away a lot of paths for leakage to bypass your
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