Tech Companies Counter Southern 6 GHz Warnings

Tech companies responded to a June Southern Co. report warning of the threat from low-power indoor unlicensed devices to electric utility operations in the 6 GHz band (see 2106240075). The companies said an August letter “attempting to rehabilitate its flawed test report. … not only failed to resolve the problems with the testing, but also doubled down on some of the … report’s most questionable aspects.” Southern’s testing shows why the FCC’s approach in the 6 GHz order “was correct, and in fact very conservative, for avoiding a significant risk of harmful interference to incumbent operations from low-power indoor operations,” tech companies said. The filing by Apple, Broadcom, Cisco, Facebook, Google and other companies was posted Friday in docket 18-295. Southern didn’t comment.