Hi Norm,
I have seen this a couple times. Once was on an old Motorola Motrac and once
on a Mastr II.
Both were on UHF and both were because of a receive audio load problem. The
fix is making sure you have a speaker load on the receiver. Give that a try and
let me know if that seems to do the trick.
Another thing to check for is to see if there is any interference on the IF
Frequency of the oscillator freq. On the GE its 11.2 MHZ down from the actual
freq. Not sure what it is on that model Moto.
One more thing,
One it’s keyed up, take a screw driver handle and tap lightly around the
receiver section. It might just be a bad connection or cold solder joint.
Make sure the receiver antenna connection is good from the PCB all the way to
the Duplexer as well. Moving the connection (Tighten or loosen the connections)
Best Regards
Rick
--- On Sun, 5/24/09, NORM KNAPP <nkn...@twowayradio.net> wrote:
From: NORM KNAPP <nkn...@twowayradio.net>
Subject: [Repeater-Builder] Strang new noise in repeater
To: Repeater-Builder@yahoogroups.com
Date: Sunday, May 24, 2009, 5:12 PM
Got a VHF repeater in my area. In the last several weeks it has started making
a noise like that of a steam whistle. It doesn't do it all the time. It seems
random. I have not been able to make any connections yet with regular
occurances. It doesn't do it until someone talks through the repeater and the
unkeys. The noise keeps the repeater up for a couple of seconds to neary a
minute. The repeater is a 100watt MTR2000. I don't remember the duplexer
type/model/brand. It doesn't seem to do it during the day, it seems more
prevelant in the evening and mornings.
Any ideas?
N5NPO
Norman Knapp
