[aprssig] Inexpensive Deviation Meter

Dale Blanchard wa7ixk at earthlink.net
Wed Sep 20 20:23:52 EDT 2006


Jim Campbell wrote:
> Thanks Alan.  The MFJ meter isn't available anymore either.
> 
> As to my radio, my station is a mix and match affair.  I have four 
> two-meter transcievers and two TNCs and a tracker.  I have cables made 
> up so that any TNC/Tracker can drive any radio.  Sure makes setting up 
> the correct deviation interesting.  That's why I was looking for an 
> inexpensive meter.
> 
> Thanks again,
> 
> Jim
> W4BQP
Many years ago I tapped off the 455kc IF on my scanner and fed it to my 
oscilloscope.
I would calibrate with a commercial repeater.
The Police frequencies were right on.
I could even see the PL tones and set them.
It would show thew whole 7 KC bandpass of the scanner on the scope.
It was easy to guesstimate things.
WA7IXK
Dale





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