[EAS] RWT trigger detection

Mike McCarthy towers at mre.com
Thu Jul 5 17:09:26 CDT 2012


With all the remotely located EAS boxes at transmitters, especially at
full power translators, owned networks, and other difficult to access
locations, what would the the practical thought be on a means to have the
box itself look for an embedded code (think DTMF string) to activate the
RWT or forward a message (think RMT).

The source audio cut would carry the DTMF string at the end of the EAS
intro for stations or networks who wish to automate their tests and don't
have closure capability.

Folks like EMF, Moody, state public networks, et al could use this in
their operation.

Now...I know there are plenty of DTMF decoders out there commerically.
What about firmware allowing the audio to be sampled as say #6 input? Then
simply being able to minimlally control the unit by analog DTMF and not
anything else?

Comments?  Am I nuts? Can it be done with the current chip limitiations
for those who are not software (PC type) defined?

Cheers

MM



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