Aviation Industry Urges Tweaks to FCC Rules to Protect Altimeters
Aviation industry representatives urged the FCC to consider tweaks to its rules to protect radio altimeters from C-band interference. The representatives, led by Aviation Spectrum Resources, met with staff from the Office of Engineering and Technology, Office of General Counsel…
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and Wireless Bureau. The aviation industry cited "the extensive steps the industry has taken, and continues to take, to harden radar altimeter hardware in thousands of aircraft to ensure more robust performance when faced with adjacent C-Band wireless operations,” said a filing posted Thursday in docket 18-122. “While solutions are still at an early stage, the aviation industry representatives discussed several examples of modest adjustments to Part 27 of the Commission’s rules that should be further investigated in conjunction with the FCC, the FAA, NTIA, and the wireless industry,” the filing said: “These concepts, such as preventing antennas pointing 90 degrees above the horizon and maintaining the wireless spurious emissions in the 4200-4400 MHz band consistent with current mitigations, would appear to not compromise wireless operators’ actual use cases while further assuring aviation safety and providing a workable RF environment against which future radio altimeters can be designed and built.” Participating in the meeting were the Aerospace Industries Association, Airlines for America, the Air Line Pilots Association, American Airlines, Collins Aerospace, the Regional Airline Association, Garmin International, the National Air Carrier Association and Thales.