[arm-allstar] DTMF Recognition

Doug Crompton wa3dsp at gmail.com
Sat Mar 28 16:48:23 EDT 2020


Chris,

 Not sure why you are experiencing that but in general DTMF works fine on
most all radios assuming levels and equalization are correct. I use THF6's,
Baofengs, Yaesu mobile, etc and I never have any problems. You said levels
are at 500. That is a starting point and there is no reason it has to stay
there. Set the levels for the radios you are using trying to average
between highest and lowest level. All radios are a little different. Use
the Asterisk client to observe what is working and what is not. It displays
the decoded character as you key it. Make sure you have the PL or DCS
filter turned ON, DCS preferred and that the pre or de-emphasis is not on
if not needed.  Set the levels so that when you speak it peaks to 6khz or
so. The client will give you an idea what digits are not working.


*73 Doug*

*WA3DSP*

*http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*


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