NAB 6 GHz Study Full of Errors, Say Tech, CE Companies

Data in a December NAB filing on unlicensed use of the 6 GHz band includes errors and reaches inapplicable conclusions (see 1912060007), wrote tech and consumer electronics companies including Apple, Cisco, Facebook, Google, Intel and Microsoft, posted Wednesday in FCC docket 18-295: NAB studied power levels “400 percent higher than appropriate." The tech interests only request indoor use of the band, but the study includes information about outdoor devices, the filing said. NAB also doesn’t account for frequency coordination, the tech interests said. “These important factors have caused NAB to overestimate the risk of harmful interference by more than 30 dB, and likely more.” The association didn't comment.