Communication Technology

Iridium

Iridium is a satellite system that is orginally designed to provide mobile phone service. The service is now extended to various other services like IoT. Probably Iridium would be the satellite mobile phone service that has been working for the longest time now.

As shown below, Iridium is orbiting in LEO. The constellation is made up of over 80 satellites at a height of approximately 781 kilometres (485 mi) and inclination of 86.4°.

The operating frequency of Iridium is 1,618.85 to 1,626.5 MHz band which belong to L-band.

FCC

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YouTube

• Iridium Next : Unmatched mobile satellite services (Jun 2015)
• Iridium Satellite Hacking - HOPE XI 2016 (Aug 2016)
• What is the Iridium NEXT Satellite Constellation? | KNews Special (Feb 2017)
• Ep. 1: One World One Phone #IridiumNEXT (Mar 2018)
• Ep. 2: The Man who Saved Iridium #IridiumNEXT (Mar 2018)
• Ep. 3: A Look Back to Iridium NEXT's First Launch #IridiumNEXT (Mar 2018)
• Ep. 4: The Delicate Dance #IridiumNEXT (Mar 2018)
• Iridium Milestone: Constellation Complete! (Feb 2019)

Reference

• Iridium Home Page