MMP-4800

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MMP-4800
Mpp4800 waveform.PNG
Frequencies 150 MHzMegaHertz (MHz) 10^6 Hz150,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
150,000 kHzKiloHertz (kHz) 10^3 Hz
,400 MHzMegaHertz (MHz) 10^6 Hz400,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
400,000 kHzKiloHertz (kHz) 10^3 Hz
,500 MHzMegaHertz (MHz) 10^6 Hz500,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
500,000 kHzKiloHertz (kHz) 10^3 Hz
,900 MHzMegaHertz (MHz) 10^6 Hz900,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
900,000 kHzKiloHertz (kHz) 10^3 Hz
150,000 kHzKiloHertz (kHz) 10^3 Hz
150 MHzMegaHertz (MHz) 10^6 Hz
900,000 kHzKiloHertz (kHz) 10^3 Hz
900 MHzMegaHertz (MHz) 10^6 Hz
Frequency Range 150 MHzMegaHertz (MHz) 10^6 Hz150,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
150,000 kHzKiloHertz (kHz) 10^3 Hz
- 900 MHzMegaHertz (MHz) 10^6 Hz900,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
900,000 kHzKiloHertz (kHz) 10^3 Hz
Mode NFMNarrowband Frequency Modulation
Modulation
ACFAutoCorrelation Function
Bandwidth 25 kHzKiloHertz (kHz) 10^3 Hz25,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
0.025 MHzMegaHertz (MHz) 10^6 Hz
,12.5 kHzKiloHertz (kHz) 10^3 Hz12,500 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
0.0125 MHzMegaHertz (MHz) 10^6 Hz
12.5 kHzKiloHertz (kHz) 10^3 Hz
0.0125 MHzMegaHertz (MHz) 10^6 Hz
25 kHzKiloHertz (kHz) 10^3 Hz
0.025 MHzMegaHertz (MHz) 10^6 Hz
Location Worldwide
Short Description MMP-4800 was a MDTMobile Data Terminal, A mobile data terminal (MDT) is a computerized device used in public transit vehicles, taxicabs, commercial trucking fleets, military logistics, and emergency vehicles, such as police cars, to communicate with a central dispatch office. (Mobile Data Terminal) protocol developed by Canadian company Mobile Data International (MDI) in 1982 for their Mobile Data Terminals. Used by public safety and commercial industries. Phased out.
I/Q Raw Recording
Audio Sample
MMP-4800 was a MDTMobile Data Terminal, A mobile data terminal (MDT) is a computerized device used in public transit vehicles, taxicabs, commercial trucking fleets, military logistics, and emergency vehicles, such as police cars, to communicate with a central dispatch office. (Mobile Data Terminal) protocol developed by Canadian company Mobile Data International (MDI) in 1982. Used by public safety and commercial industries. Phased out.

Transmitted at 4800 bpsBits per second (bps), had two-way functionality, and occupied 25 kHzKiloHertz (kHz) 10^3 Hz UHFUltra High Frequency (300-3000 MHz)/VHFVery High Frequency (30-300 MHz) voice channel, or 12.5 kHzKiloHertz (kHz) 10^3 Hz sideband.

Users of this included Swedish Police, Phoenix Fire Dept., and other commercial companies.

When MDI was purchased by Motorola in 1988, Motorola decided to discontinue MDI's MMP-4800 protocol in favor of it's own MDC-4800 protocol.

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