Lesson 3: Commercial Satellite Systems
Monitor commercial satellite systems including Iridium, Globalstar, and other constellations.
Objectives
- Monitor Iridium satellite communications
- Track Globalstar satellite signals
- Analyze commercial satellite protocols
- Decode satellite telemetry data
Iridium Monitoring
# Iridium frequencies 1626.5 - 1626.6875 MHz (Uplink) 1616.0 - 1616.875 MHz (Downlink) # Monitor Iridium bursts gqrx -f 1626.0M -s 2.6M # Decode Iridium signals iridium-toolkit --frequency 1626.0M --sample-rate 2.6M
Globalstar Monitoring
# Globalstar frequencies 2483.5 - 2500.0 MHz (Downlink) 1610.0 - 1626.5 MHz (Uplink) # Monitor Globalstar signals gqrx -f 2483.5M -s 16.5M # Analyze signal patterns gnuradio-companion globalstar_analyzer.grc