What are the input and output frequencies of the repeater? What is the
make and model? Is there an isolator between the transmitter and the
duplexer?
Certain models of older repeaters can generate spurious carriers if the
shields are missing or improperly installed on the exciter. There may
also be a "rusty metal diode" at work, creating an AM intermod signal
when your carrier mixes with another carrier, possibly a broadcast
station. You might try banging on metal guy wires, sheet metal panels,
chain link fences, etc., to see if you can affect the modulation heard on
the AM aircraft band.
73, Eric Lemmon WB6FLY
Mathew Quaife wrote:
> ... I could hear the output of the repeater at 132.750 to 132.850, most
> output at 132.800 MHz. In the FM mode, voice was detected, but
> distorted, in the AM mode, voice was very intelligible, as was the
> repeater id'er... Other than taking the repeater down, which is what
> will happen here very shortly to prevent interference with Aviation,
> what might be happening?...
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
