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.