AT&T, ACA Lobby on Rules for Opening C Band for 5G

recognize that 5G channels more than 50 MHz from the FSS band edge "will have no measurable impact on earth station operation,” it said. The FCC should also address grandfathered telemetry, tracking and control earth stations “on a highly individualized basis, including requiring investments in site-specific interference management tools, and reject the potentially sweeping preclusive effect of … overbroad generic regulations,” AT&T said in docket 18-122, posted Wednesday. America’s Communications Association also renewed its attack on the C-Band Alliance plan (see 1910220065). “CBA’s work in progress seems to rely on the use of further video compression and elimination of standard definition feeds,” ACA said: “Such a plan to clear 300 MHz would require significantly more than three years to complete and would cause irreparable harm to all industries that rely on the C-band, particularly the pay TV industry.” ACA met with staff from the International and Wireless bureaus, the Office of Economics and Analytics and Office of General Counsel. The Aerospace Vehicle Systems Institute (AVSI), meanwhile, filed data at the FCC on potential out-of-band interference from operations in the C band to radio altimeters using the adjacent 4.2-4.4 GHz band. The data is “very preliminary” but shows a decline in altimeter performance from increased use of the band for 5G. AVSI said the FCC should consult with the FAA “to assure public safety in the national airspace.” An altimeter measures the height of an aircraft above the terrain. CBA didn't comment.