Iridium Waves Off Ligado Claims of Inconsistency in Interference Arguments
Ligado's arguments to the FCC Media Bureau about interoperability issues between its proposed broadband terrestrial wireless network and Iridium's Certus receivers (see 1712190029) aren't germane, Iridium said in an RM-11681 filing posted Wednesday. It said Ligado is wrong in its…
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claim of Iridium inconsistency between the ancillary terrestrial component (ATC) proceeding and Certus proceeding, since an ATC network is more likely to interfere with Iridium than mobile satellite service earth stations. It also said in the ATC proceeding, Iridium discussed broad deployment of all types of L-band terminals, which today number close to 1 million, while the Certus proceeding's focus is on terminals that would be operated principally on airplanes and ships. It said Ligado never addressed Iridium's technical showing demonstrating there's no legitimate worry about Certus terminals interfering with Ligado receivers. Ligado didn't comment Thursday.