I just spoke with someone from MTS about their Emergency Alert Radio:
http://emergencyalertradio.com. The product is a small radio with AC
power connection & battery backup (3 AA's, but the unit does not have a
charger for them. The rep suggested that they be replaced "when the
clocks change" or after any extended outage, as they are good for 24
hours of total runtime). It is factory tuned to one frequency (your
campus radio station) and cannot be changed casually. Volume can only
be adjusted with a screwdriver. The radio continuously monitors the
frequency for a signal to 'unmute' itself. There is a button you can
push unmute it if you want to listen to the station, then push again to
return the unit to mute mode. Upon receipt of a special signal from
your transmitter, the radio will unmute and play whatever you're
broadcasting. Once you're done with your announcement, you send another
signal to mute the radios again. The unit has a plastic case and
unfortunately no obvious means of securing it in a classroom.
Has anyone seen these or used them before?
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