Sec.  73.840   Operating power and mode tolerances.

   The transmitter power output (TPO) of an LPFM station must be determined by
   the procedures set forth in  Sec. 73.267 of this part. The operating TPO of an
   LPFM  station  with  an  authorized TPO of more than ten watts must be
   maintained as near as practicable to its authorized TPO and may not be less
   than 90% of the minimum TPO nor greater than 105% of the maximum authorized
   TPO. An LPFM station with an authorized TPO of ten watts or less may operate
   with  less  than  the  authorized power, but not more than 105% of the
   authorized power.