§ 78.101   Power limitations.

   (a) On any authorized frequency, the average power delivered to an
   antenna shall be the minimum amount of power necessary to carry out the
   communications desired. In no event shall the average transmitter power
   or equivalent isotropically radiated power (EIRP) exceed the values
   specified below.
   Frequency band
   (MHz) Maximum allowable transmitter power—mobile (W) Maximum allowable
   EIRP^1 2
   Fixed (dBW) Mobile (dBW)
   2,025 to 2,110 20.0 + 35
   6,425 to 6,525 20.0 + 35
   6,875 to 7,125 20.0 + 35
   12,700 to 13,250 1.5 + 55 + 45
   17,700 to 18,600 + 55
   18,600 to 18,800^1 + 35
   18,800 to 19,700 + 55

   ^1The power delivered to the antenna is limited to −3 dBW.

   ^2Stations licensed based on an application filed before April 16,
   2003, for EIRP values exceeding those specified above, may continue to
   operate indefinitely in accordance with the terms of their current
   authorizations, subject to periodic renewal.

   (b) LDS stations shall use for the visual signal-vestigial sideband AM
   transmission. When vestigial sideband AM transmission is used the peak
   power of the visual signal on all channels shall be maintained within 2
   dB of equality. The mean power of the aural signal on each channel
   shall not exceed a level of 7 dB below the peak power of the visual
   signal.

   (c) The EIRP of transmitters that use Automatic Transmitter Power
   Control (ATPC) shall not exceed the EIRP specified on the station
   authorization. The EIRP of non-ATPC transmitters shall be maintained as
   near as practicable to the EIRP specified on the station authorization.

   [ 45 FR 78694 , Nov. 26, 1980, as amended at  52 FR 7144 , Mar. 9, 1987;  65 FR 48182 , Aug. 7, 2000;  68 FR 12776 , Mar. 17, 2003]

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