DirecTV: Engineering Study Shows 12 GHz Coexistence 'Havoc'

High-power, two-way fixed operations in the 12.2-12.7 GHz band would cause harmful interference to DirecTV receivers 100 to 1 million times the limits in place to protect direct broadcast satellite (DBS) customers, according to DirecTV. In docket 20-443, it submitted an engineering study by consultancy Savid to counter Dish Network's submitted study by consultancy RKF that backs DBS and fixed wireless coexistence in the band (see 2311160032). The Savid study shows interference extending well beyond the intended coverage area of the base stations, contrary to RKF's "misleading depictions," and allegations of "wreak[ing] havoc" on DBS subscribers, DirecTV said in the filing posted Friday. Separately in docket 22-352, DirecTV recapped calls with aides to FCC Chairwoman Jessica Rosenworcel and Commissioners Anna Gomez, Brendan Carr and Nathan Simington. It discussed concerns about opening the adjacent 12.7-13.25 GHz band to terrestrial wireless and the likelihood of harmful interference to DBS operations.