plectron การใช้

• The Motorola MINITOR pager also uses this function and has largely replaced the Plectron.
• Receivers made by Plectron and often used to page volunteer firefighters use a long single tone.
• A Plectron's main feature ( distinguishing it from a regular squelched radio ) was its selective de-squelching.
• Some Plectron Models had a set of " Built-in Re-chargeable Batteries ", for this made the Plectron Portable.
• Some Plectron Models had a set of " Built-in Re-chargeable Batteries ", for this made the Plectron Portable.
• The Plectron receivers that transmit calls for local fires are so outdated that parts are no longer manufactured and only two of the five boxes work.
• The Plectron company, which manufactured alert radio receivers used by fire departments, was started in Overton in 1955; it moved operations to Lexington, Nebraska in the 1980s
• A "'Plectron "'is a specialized VHF / UHF single-channel, emergency alerting radio receiver, used to activate emergency response personnel, and disaster warning systems.
• The decoder in the typical Plectron receiver would not decode the tone as a valid call unless it was present for at least two to four seconds, ( a very long variation of the burst tone ).
• Examples of systems of two-tone sequential paging are Motorola " Quik Call II ", General Electric Mobile Radio " Type 99 ", and later-model " Plectron " receivers.
• After the construction of the temple in the name of preservative God of the city, head of Apollo, kithara, plectron and Apollo Sauroctonus figure in the temple were used from Hellenistic Era to the late Roman Empire Period.
• Until the old Station 1 was closed and converted into a Colonie EMS station, a Federal Signal Thunderbolt 1003 siren was also used to alert firefighters in conjunction with Plectrons and later pagers, utilizing the Hi-Lo ( Fire ) signal.
• 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.
• Other methods included specialized phones placed inside the volunteer firefighter's home or business or by base radios or scanners . " Plectron " radio receivers were very popular, but were limited to 120VAC or 12VDC operation, limiting their use to a house / building or mounted in a vehicle.