US lawFederal (United States)RegulationsTitle 47 CFR — TelecommunicationChapter I — FEDERAL COMMUNICATIONS COMMISSIONPart 30 — UPPER MICROWAVE FLEXIBLE USE SERVICESubpart E — Special Provisions for Fixed Point-to-Point, Fixed Point-to-Multipoint Hub Stations, and Fixed Point-to-Multipoint User Stations30.40747 C.F.R. § 30.407Antenna polarization.Last amended: 2016Year: 2026Length: 37 wordsOfficial source Cite as 47 C.F.R. § 30.407 (2026)In the 27,500-28,350 MHz band, system operators are permitted to use any polarization within its service area, but only vertical and/or horizontal polarization for antennas located within 20 kilometers of the outermost edge of their service area.Previous47 C.F.R. § 30.406