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We'll cover a whole range of topics related to listening to Iridium satellites and making sense of the (meta) data that can be collected that way:
- Overview of new antenna options for reception. From commercial offerings (thanks to Iridium Time and Location) to home grown active antennas.
- How we made it possible to run the data extraction from an SDR on just a Raspberry Pi.
- Running experiments on the Allen Telescope Array.
- Analyzing the beam patterns of Iridium satellites.
- Lessons learned in trying to accurately timestamp Iridium transmissions for future TDOA analysis.
- What ACARS and Iridium have in common and how a community made use of this.
- Experiments in using Iridium as a GPS alternative.
- Discoveries in how the network handles handset location updates and the consequences for privacy.
- Frame format and demodulation of the Iridium Time and Location service.