Sec.  21.117   Transmitter location.

   

   (a) The applicant shall determine, prior to filing an application for
   a radio station authorization, that the antenna site specified therein
   is adequate to render the service proposed. In cases of questionable
   antenna locations, it is desirable to conduct propagation tests to
   indicate the field intensity which may be expected in the principal
   areas or at the fixed points of communication to be served,
   particularly where severe shadow problems may be expected. In
   considering applications proposing the use of such locations, the
   Commission may require site survey tests to be made pursuant to a
   developmental authorization in the particular service concerned. In
   such cases, propagation tests should be conducted in accordance with
   recognized engineering methods and should be made with a transmitting
   antenna simulating, as near as possible, the proposed antenna
   installation. Full data obtained from such surveys and its analysis,
   including a description of the methods used and the name, address and
   qualifications of the engineer making the survey, must be supplied to
   the Commission.

   (b) The owner of the antenna structure should locate and construct
   such structure as to avoid making them hazardous to air navigation.
   (See part 17 of this chapter for provisions relating to antenna
   structures.) Such installation shall be maintained in good structural
   condition together with any required painting or lighting.

   [ 44 FR 60534 , Oct. 19, 1979, as amended at  61 FR 4365 , Feb. 6, 1996]