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Subject: Re: Single / Multitone Detector (Not DTMF)
Date: Mon, 13 Jan 2003 20:43:18 +1100
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CML make (made?) decoder chips for multi-tone signalling SelCall) and CTCSS
"Terry King" wrote in message
> IsThere a audio tone detector type IC that is NOT just
> standard DTMF, but with similar capability? Ideally
> it would integrate some configureable digital filters
> with configurable detectors and logic to enable
> single or multitone detection of arbitrary signals.
> And be run from a microcontroller, of course.
> I would like to be able to detect some non-dtmf
> signals from handheld radios, as well as a couple
> or more DTMF tones.
> Any pointers appreciated...
> Regards, Terry King ...In The Woods In Vermont
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