§ 73.816   Antennas.

   (a)  Permittees  and licensees may employ nondirectional antennas with
   horizontal  only  polarization,  vertical  only polarization, circular
   polarization or elliptical polarization.

   (b) Directional antennas generally will not be authorized and may not be
   utilized in the LPFM service, except as provided in paragraph (c) of this
   section.

   (c)(1) Public safety and transportation permittees and licensees, eligible
   pursuant to § 73.853(a)(2), may utilize directional antennas in connection
   with the operation of a Travelers' Information Service (TIS) provided each
   LPFM  TIS station utilizes only a single antenna with standard pattern
   characteristics that are predetermined by the manufacturer. Public safety
   and transportation permittees and licensees may not use composite antennas
   (i.e., antennas that consist of multiple stacked and/or phased discrete
   transmitting antennas).

   (2) LPFM permittees and licensees proposing a waiver of the second-adjacent
   channel spacing requirements of § 73.807 may utilize directional antennas for
   the sole purpose of justifying such a waiver.

   (d) LPFM TIS stations will be authorized as nondirectional stations. The use
   of a directional antenna as provided for in paragraph (c) of this section
   will  not  be  considered  in the determination of compliance with any
   requirements of this part.

   [ 65 FR 67303 , Nov. 9, 2000, as amended at  78 FR 2106 , Jan. 9, 2013]

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