[BC] BC] Moseley Starlink SL9003Q Interference Fix

[Richard Rudman]

Two problems. Two solutions.

I recently installed an SL9003Q system and Crescend amplifier for an  
FM station in Ventura, CA. I installed an IMC filter ahead of the  
receiver. Everything was good for about a week. The Moseley manual  
gave me some good information that led to clearing up that problem.  
The manual states that the receiver should show @ -122 dB signal level  
with the transmitter shut off. The receiver was showing -95. The  
receive antenna installed to make the install deadline was a  
compromise, a Paraflector.

Lead time for obtaining new round grid dishes, standard practice in  
congested areas, is off the charts these days. I installed a 15 dB pad  
and the dropouts stopped. Despite the expected drop in desired receive  
signal, the "Pre" BER and ERROR count went way down.

Several weeks later -- more dropouts, but of a different character.  
Just found out the cause yesterday. The transmitter audio, although  
run through a limiter, was occasionally too hot. When the audio output  
of the limiter was dropped, the audio problems went away. A new 6'  
grid dish is on order. When it arrives and is installed, I can  
retrieve my pads.

Richard Rudman



Date: Wed, 07 May 2008 16:13:25 -0500
From: "R. V. Zeigler" <rzeigler at krvn.com>
Subject: [BC] Moseley Starlink SL9003Q Interference Fix
To: broadcast at radiolists.net
Message-ID: <48221B75.9070105 at krvn.com>
Content-Type: text/plain; charset="iso-8859-1"

We had a real problem with our Starlink STL that had us to the point of
reverting to analog...