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The Motorola Minitor is a portable, analog, receive only, voice pager typically carried by civil defense organizations such as fire, rescue, and EMS personnel (both volunteer and career) to alert of emergencies. The Minitor, slightly smaller than a pack of cigarettes, is carried on a person and usually left in selective call mode.
Canopy – A line-of-sight wireless technology, primarily used by ISPs to provide broadband internet; MotoMESH – A mobile wireless broadband product providing proprietary "Mesh-Enabled Architecture" and standards-based 802.11 network access in both the unlicensed 2.4 GHz band and the licensed 4.9 GHz public-safety band
The end-of-transmission phase reversal (called "Reverse Burst" by Motorola (and trademarked by them) and "Squelch Tail Elimination" or "STE" by GE [8]) caused the reed to abruptly stop vibrating which would cause the receive audio to instantly mute. Initially, a phase shift of 180 degrees was used, but experience showed that a shift of ±120 to ...
The default or standard five Motorola tones used for single tone format as of the 1980s: 1,350 Hz, 1,500 Hz, 1,650 Hz, 1,800 Hz, 1,950 Hz. These were identified in system documentation for a number of remote control equipment models as well as sales brochures for Motorola Syntor and Micor mobile radio Systems 90 accessories. A common tone burst ...
An audio notch filter removes the 2,175 Hz low-level tone from the actual transmit audio. General Electric Mobile Radio called the high-level tone, '"Secur-it tone", and called the low-level tone "hold tone." In the industry, the low-level continuous tone is often called, low-level guard tone. The low-level tone is present at the same time as ...
The Motorola Jazz is a pager produced by Motorola between 1991 and 1993 which uses the FLEX pager protocol. It was available in Slate Gray, Arctic White, Ocean Blue and transparent colors. The Jazz was the smallest messaging pager at the time of its release, ran on a single AAA battery and had a green LCD. The user could also opt for news ...
A base transceiver station (BTS) or a baseband unit [1] (BBU) is a piece of equipment that facilitates wireless communication between user equipment (UE) and a network. UEs are devices like mobile phones (handsets), WLL phones, computers with wireless Internet connectivity, or antennas mounted on buildings or telecommunication towers.
LPD433 (low power device 433 MHz) is a UHF band in which license free communication devices are allowed to operate in some regions. The frequencies correspond with the ITU region 1 ISM band of 433.050 MHz to 434.790 MHz.
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