§  73.1725   Limited time.

   (a) Operation is applicable only to Class B (secondary) AM stations on
   a clear channel with facilities authorized before November 30, 1959.
   Operation of the secondary station is permitted during daytime and
   until local sunset if located west of the Class A station on the
   channel, or until local sunset at the Class A station if located east
   of that station. Operation is also permitted during nighttime hours not
   used by the Class A station or other stations on the channel.

   (b) No authorization will be granted for:

   (1) A new limited time station;

   (2) A limited time station operating on a changed frequency;

   (3) A limited time station with a new transmitter site materially
   closer to the 0.1 mV/m contour of a co-channel U.S. Class A station; or

   (4) Modification of the operating facilities of a limited time station
   resulting in increased radiation toward any point on the 0.1 mV/m
   contour of a co-channel U.S. Class A station during the hours after
   local sunset in which the limited time station is permitted to operate
   by reason of location east of the Class A station.

   (c) The licensee of a secondary station which is authorized to operate
   limited time and which may resume operation at the time the Class A
   station (or stations) on the same channel ceases operation shall, with
   each application for renewal of license, file in triplicate a copy of
   its regular operating schedule. It shall bear a signed notation by the
   licensee of the Class A station of its objection or lack of objection
   thereto. Upon approval of such operating schedule, the FCC will affix
   its file mark and return one copy to the licensee authorized to operate
   limited time. This shall be posted with the station license and
   considered as a part thereof. Departure from said operating schedule
   will be permitted only pursuant to §  73.1715 (Share time).

   [ 56 FR 64872 , Dec. 12, 1991]

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