Iridium Push-to-Talk – Comparison Chart
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iridium Extreme® PTT with Docking Station Inmarsat L-Tac Inmarsat BGAN Explorer PTT Ligado MSAT Approximate Retail Cost Vehicular Antenna Size (Diameter) Total Weight Satellite Coverage PTT Reach Talkgroup Programming Time to Change Mission Parameters or Program Terminal In-Call Latency Interoperability with N/A - handheld 0.28 kg Global Global Web App -customer use Minutes -over the air 0.5 sec Yes 3.6 cm 0.5 kg Global Global Web App -customer use Minutes -over the air 0.5 sec Yes Fixed or manpack $5,999 14.6 cm 1.7 kg 70° N to 70° S Multiple beams with lease Customer must call Service Provider Hours Fixed only $6,995 BGAN + $1,400 PTT 35 cm 5.6 kg 70° N to 70° S 70° N to 70° S Customer must call Service Provider Hours Fixed only $4,799 28 cm 5.3 kg North America Only North America Only Customer must call Service Provider Hours Handheld Fixed with grab 'Allows value added manufacturers to build their own PTT radio or build into existing communication systems

Only one communications company connects the entire globe lridium®commands the world's furthest-reaching network, making it the only truly global communications company with solutions that span from pole-to-pole. Iridium voice and data products provide superior communications solutions that allow global companies, government agencies and individuals to stay connected everywhere. With a unique global ecosystem of partners, Iridium continues to create new, high-value capabilities that are leading the world into a new era of communication. *:.• iridium Everywhere n^EnO"...