[arm-allstar] DTMF Recognition

Chris Smart csmart8 at cogeco.ca
Sat Mar 28 16:52:15 EDT 2020


Thanks Doug.

So I can't get away with PL and DCS filters off? I like the slightly 
improved audio doing that, but maybe that's my problem?

At 04:48 PM 3/28/2020, you wrote:
>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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