Iridium Inconsistent on Adjacent Emission Interoperability, Ligado Says
Iridium is trying to have it both ways on interoperability -- or lack thereof -- with Ligado, Ligado said in an RM-11681 FCC ex parte filing posted Monday on meeting International Bureau staffers including Chief Tom Sullivan. It said Iridium…
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complains that Ligado's requested license modification for a broadband terrestrial wireless network would interfere with Iridium terminals but claims its new Certus receivers tied to its Next constellation (see 1704140008) can coexist with any adjacent operator following FCC out-of-band emissions (OOBE) limits. Ligado said its ancillary terrestrial component broadband operations for which it's seeking the license modification would produce OOBE at levels below the limits. Ligado said Iridium is inconsistent in claiming both that its Certus receivers generally wouldn't operate near GPS users and that its terminals are used in a variety of urban and suburban areas. Ligado said the bureau should resolve such inconsistencies before acting on Certus authorization. Iridium didn't comment Tuesday. It previously criticized Ligado's terrestrial plans and interference (see 1708040029 and 1709260048).