[EAS] RWT trigger detection

Bill Ruck ruck at lns.com
Thu Jul 5 21:55:23 CDT 2012


You are missing the point.

Our Federal government, in its infinite wisdom, determined that 100% 
of the radio sites in the U.S. have wideband Internet access.

IP is everywhere.  They think.

Think not.

Bill Ruck
Curmudgeon
San Francisco

At 03:39 PM 7/5/2012, you wrote:
>[snip]
>
>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.
>
>[end]
>
>Ham radio repeaters are controlled by DTMF all the time, so the concept
>is do-able from a technical point of view.
>
>At one time we controlled a Marti repeater over a dial-up POTS. At the
>repeater site, a Broadcast Tools box auto-answered and decoded DTMF
>tones, firing relays to control the Marti transmitter.
>
>How about using a channel on the site's remote control to pull in a
>relay which initiates the RWT? Understand this is not workable for
>un-managed translators.



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