VIBRA-Page - For silent alarm activation, most Minitor pagers can also vibrate without sounding an alarm tone.Other alarms can include a steady high pitched tones, and the newest Minitor V's can even have musical tones for general non-emergency announcements. Alert tones - The default, and most common alert is the continuous beeping (sounds like 'beep-beep-beep-beep.etc.)'.
This can be very helpful if a user belongs to several emergency services, or the emergency service has different alarms for different emergencies.
Newer generation Minitor pagers can simultaneously scan up to two channels and have multiple activation tones. Note - most all of the features below refer to the Minitor pagers III and up, the original Minitor and Minitor II pagers may not have some of the listed features Thus, Motorola answered this call in the 1970s and released the very first Minitor pager. There was a great need and desire for a portable radio small enough to be worn by a person and only activated when needed. '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. Other methods included specialized phones placed inside the volunteer firefighter's home or business or by base radios or scanners. As electricity became available, most fire departments used fire sirens or whistles to summon volunteers (many fire departments still use outdoor sirens and horns along with pagers to alert volunteers). 
The earliest methods of sounding an alarm would typically be by ringing a bell either at the fire station or the local church. In the times before modern radio communications, it was difficult for emergency services such as volunteer fire departments to alert their members to an emergency, since the members were not based at the station.
0 kommentar(er)
