Plectron
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A Plectron is a specialized VHF/UHF single-channel, emergency alerting radio receiver, used to activate emergency response personnel, and disaster warning systems. Manufactured from the late 1950s, through the late 1990s, by the now defunct Plectron Corporation in Overton, Nebraska, hundreds of thousands of these radios were placed in homes of first responders across all of North America. This included ambulance crews, full-time and volunteer firefighters, off-duty specialized police response teams, Civil Defense members, and search and rescue teams. A Plectron's main feature (distinguishing it from a regular squelched radio) was its selective de-squelching. It would only sound when a correct pair of tones was broadcast allowing many agencies (with different tones) to share the same frequency. Some Plectron models had a set of built-in rechargeable batteries, making it portable.
A Plectron is a specialized VHF/UHF single-channel, emergency alerting radio receiver, used to activate emergency response personnel, and disaster warning systems. Manufactured from the late 1950s, through the late 1990s, by the now defunct Plectron Corporation in Overton, Nebraska, hundreds of thousands of these radios were placed in homes of first responders across all of North America. This included ambulance crews, full-time and volunteer firefighters, off-duty specialized police response teams, Civil Defense members, and search and rescue teams. A Plectron's main feature (distinguishing it from a regular squelched radio) was its selective de-squelching. It would only sound when a correct pair of tones was broadcast allowing many agencies (with different tones) to share the same frequency. Some Plectron models had a set of built-in rechargeable batteries, making it portable.
See also
Telex National Emergency Alarm Repeater Motorola Motorola Minitor Pager Radio Communication Firefighting Dispatching
References
Bob Parnass, AJ9S (October, 1999). Plectron R-700 Monitor Receivers. Monitoring Times (monthly periodical).
External links
"Add a Plectron or Motorola Alert Desktop Monitor Receiver to Your Scanner Collection" by Bob Parnass, AJ9S.
Text derived from https://en.wikipedia.org/w/index.php?oldid=1359659956 under CC BY-SA 4.0; modifications have been made.