§ 73.311   Field strength contours.

   (a) Applications for FM broadcast authorizations must show the field
   strength contours required by FCC Form 301 or FCC Form 340, as
   appropriate.

   (b) The field strength contours provided for in this section shall be
   considered for the following purposes only:

   (1) In the estimation of coverage resulting from the selection of a
   particular transmitter site by an applicant for an FM broadcast
   station.

   (2) In connection with problems of coverage arising out of application
   of § 73.3555.

   (3) In determining compliance with § 73.315(a) concerning the minimum
   field strength to be provided over the principal community to be
   served.

   (4) In determining compliance with § 73.215 concerning contour
   protection.

   [ 28 FR 13623 , Dec. 14, 1963, as amended at  31 FR 10126 , July 27, 1966;
    32 FR 11471 , Aug. 9, 1967;  52 FR 10570 , Apr. 2, 1987;  54 FR 9802 , Mar.
   8, 1989]

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