Inmarsat IsatM2M

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Inmarsat IsatM2M
Frequencies 1525 MHz,1559 MHz
Frequency Range 1525 MHz - 1559 MHz
Mode USB
Modulation MFSK
Emission Designator
Bandwidth 1.024 kHz
Location Worldwide
Short Description IsatM2M Service operated by Inmarsat on existing Inmarsat-D/D+ infrastructure.
I/Q Raw Recording Download file
Audio Sample

IsatM2M Paging Service operated by Inmarsat on existing Inmarsat-D/D+ infrastructure. Used for transport vehicle security, industrial equipment monitoring (SCADA) and marine tracking. Similar waveform to Inmarsat-D/D+ but employs faster bit rate and wider bandwidth.


32-MFSKMultiple Frequency Shift-Keying, 16 symbols/sec, 32 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). shift. ~80 bpsBits per second (bps) max data rate. Has idling mode and preamble. Compared to the Inmarsat-D/D+ waveform, IsatM2M is 2-4x faster, with maximum datarate of 80 bpsBits per second (bps) (compared with Inmarsat-D/D+'s maximum datarate of 20-40 bpsBits per second (bps)).

Support Notice[edit]

Inmarsat advises that it will continue to support its ISATM2M service at least until December 2018. This provides long-term stability and guarantees that critical IsatM2M services, currently provided via the Inmarsat-3 constellation, can become available to all ISAT M2M customers until at least 2018 by allowing for IsatM2M services to be provided on the I4 satellites should the need arise.


(Sample contributed by RAPIDBIT)

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