§  25.205   Minimum angle of antenna elevation.

   (a) Earth station antennas shall not normally be authorized for
   transmission at angles less than 5° measured from the horizontal plane
   to the direction of maximum radiation. However, upon a showing that the
   transmission path will be seaward and away from land masses or upon
   special showing of need for lower angles by the applicant, the
   Commission will consider authorizing transmissions at angles between 3°
   and 5° in the pertinent directions. In certain instances, it may be
   necessary to specify minimum angles greater than 5° because of
   interference considerations.

   (b) ESVs making a special showing requesting angles of elevation less
   than 5° measured from the horizontal plane to the direction of maximum
   radiation pursuant to (a) of this Section must still meet the effective
   isotropically radiated power (e.i.r.p.) and e.i.r.p. density towards
   the horizon limits contained in §  25.204(h) and (i).

   (c) VMESs making a special showing requesting angles of elevation less
   than 5° measured from the horizontal plane to the direction of maximum
   radiation pursuant to (a) of this section must still meet the EIRP and
   EIRP density towards the horizon limits contained in §  25.204(j).

   [ 70 FR 4784 , Jan. 31, 2005, as amended at  74 FR 57099 , Nov. 4, 2009]

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