[Code of Federal Regulations] [Title 47, Volume 2] [Revised as of October 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 47CFR22.363] [Page 129] TITLE 47--TELECOMMUNICATION CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) PART 22--PUBLIC MOBILE SERVICES--Table of Contents Subpart C--Operational and Technical Requirements Sec. 22.363 Directional antennas. Fixed transmitters for point-to-point operation must use a directional transmitting antenna with the major lobe of radiation in the horizontal plane directed toward the receiving antenna or passive reflector of the station for which the transmissions are intended. Directional antennas used in the Public Mobile Services must meet the technical requirements given in Table C-2 to Sec. 22.361. (a) Maximum beamwidth is for the major lobe at the half power points. (b) Suppression is the minimum attenuation for any secondary lobe referenced to the main lobe. (c) An omnidirectional antenna may be used for fixed transmitters where there are two or more receive locations at different azimuths.