INMARSAT Satellite
INMARSAT AERO. OQPSK, Br-10500
Author: SergUA6
Band Width ~10500 Hz
Low Range ~750 Hz, in this example only!
Baud Rate 10500 Hz
n-Ary (PSK/MPSK) OQPSK, constellation looks as square PSK-8
Count of Carriers single mode
Carrier frequency 6079 Hz, in this example only!
ACF 500 ms
RX mode SSB
Sonograms:
pic.1 Generall view
pic.2 Baud rate
Diagrams:
pic.3 Typical characteristics of OQPSK and other half-modes.
pic.4 ACF
pic.5 View of the signal in VMW
Pictures:
pic.6 Phase constellations
INMARSAT AERO - INMARSAT is using wide enought line of different protocols. In this record, it is presumably AERO-H. The signal is very bright. All the parameteres of this signal can be easily determined.
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