Atc radio frequencies usa7/28/2023 ![]() “The number of uncertified operations, and the power they use for training and exercises, could be limited at times,” the FAA spokeswoman says. Although the Air Force says frequency authorizations are now limited to a “few,” the FAA statement released to Aviation Week downplays the effect of the problem on regular operations. The FAA says it is continuing to work with the Defense Department to “resolve issues related to Link 16, a frequency used by core elements of the national airspace system,” an agency spokeswoman says. But most surviving authorizations are temporary and expire in several weeks, with no certainty of follow-on approvals as discussions between the FAA and Defense Department officials continue. Some Link 16 users have already been cut off by FAA denials, while others, such as the Boeing F/A-18E/F Super Hornet and EA-18G Growler, still enjoy a “mitigation approval” to use the network with certain caveats. The restrictions mean that military operators’ planning exercises and weapon system tests now face a shifting patchwork of regulatory approvals for the Link 16 network. Air Force to only “a few temporary flight authorizations for test and training” using Link 16, an Air Force spokeswoman says. The FAA’s concerns about interference have already limited the U.S. 1 has not been certified by the FAA, which has given rise to concerns that the military’s test and certification process for inserting new software into terminals that use the data link is inadequate. However, a mandated security update to Link 16 that took effect on Jan. Agency’s certification infrastructure limited.Issue raised by data link cryptography update.The ubiquitous battlefield network shares the same radio frequency band with several safety-critical systems managed by the FAA, which requires an elaborate deconfliction process to make sure the military system never interferes with civil aviation signals. The FAA has limited the Defense Department’s access to the radio frequency band used by Link 16-the military’s primary battlefield communication system used for platforms in the air, on land and at sea.
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