Behalf Of knightdriver20042004
Sent: Monday, May 30, 2005 2:13 AM
To: Repeater-Builder@yahoogroups.com
Subject: [Repeater-Builder] Audio buzz on remote base
I seem to be having a problem involving a kenwood tm701 with a Doug
Hall RBI-1 on the link port of my Mastr II VHF repeater. It seems to
have
Steve,
In nearly every case I can remember, a buzz or hum in an audio circuit
could be traced to a ground loop. The predominance of unbalanced audio
cables used to connect the components means that some AC leakage currents
will flow over the shields and thereby become part of the audio signal.
T
Doug,
I had a similar problem and it turned out to be a
little DC coupling between the hardware. I fixed my
problem with the installation of an isolation
transformer (RadioShack Part # 273-1374). I put one
each on the audio IN and the audio OUT of the remote
base transceiver. This will take care
I seem to be having a problem involving a kenwood tm701 with a Doug
Hall RBI-1 on the link port of my Mastr II VHF repeater. It seems to
have a buzz in the audio, or the dtmf regenerate feature of the RC-210
controller. It seems to be so bad, that the Echolink program will not
decode the dtmf. Ther
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