Hello Mark.
10 Aug 97 18:53, Jeff Edmonson wrote to Mark Magill:
 JE>
 >>> The fellow who installed the kit in my radio for me
 >>> did it at mic input cicuit level, so I have to be...
 JE>
 >> JE> Wouldn't take much, Mark, to move the injection point of the
 >> JE> pl tone from the mic input circuitry, to a more suitable
 >> JE> place - you could probably reduce the deviation of the tone
 >> JE> at that point.
 JE>
 >> Question: I no longer have a oscilloscope or
 >> any serious test equipment. How does one adjust
 >> deviation or tone level without one, or can you? One
 >> fellow said turn the tone off and slowly increae it
 >> until the repeater opened... :-)
 JE>
 JE> Works for me 
 JE>
 JE> Actually, I never got into the technical end of V/UHF or even FM.
 JE> Very light reading in that area.  Most of my technical expertise is in
 JE> older TUBE gear.
 JE>
 JE> Roy Witt, Joe Delahaye, maybe even Bud Jamison could help you with the
 JE> FM rig.
There's a way, but you'd be better off with the right gear.  It requires 
attaching a Mico-Ampmeter to the deviation circuit and you'd need the service 
manual to help you there.  As far as the tone output goes, you can try 
inserting the tone with a pot in place of the resistor mentioned and 
listening with headphones on another reciever.  If you can hear it, it's too 
much. If you can barely hear it, it might just be low enough..   All of the 
commercial repeaters will filter it out, but it may distort your audio to the 
point that people will object to it.   BTW, do the diviation testing into a 
dummy load on low power if you can...
... Press any key to continue or any other key to quit.
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