Goto Section: 74.635 | 74.637 | Table of Contents

FCC 74.636
Revised as of September 1, 2021
Goto Year:2020 | 2022
  §  74.636   Power limitations.

   (a) On any authorized frequency, transmitter peak output power and the
   average power delivered to an antenna in this service must be the
   minimum amount of power necessary to carry out the communications
   desired and shall not exceed the values listed in the following table.
   Application of this principle includes, but is not to be limited to,
   requiring a licensee who replaces one or more of its antennas with
   larger antennas to reduce its antenna input power by an amount
   appropriate to compensate for the increased primary lobe gain of the
   replacement antenna(s). In no event shall the average equivalent
   isotropically radiated power (EIRP), as referenced to an isotropic
   radiator, exceed the values specified in the following table. In cases
   of harmful interference, the Commission may, after notice and
   opportunity for hearing, order a change in the effective radiated power
   of this station. The table follows:
   Frequency band (MHz) Maximum allowable transmitter power Maximum
   allowable EIRP^2
   Mobile (W) Fixed (dBW) Mobile (dBW)
   2,025 to 2,110 12.0 + 45 + 35
   2,450 to 2,483.5 12.0 + 45 + 35
   6,425 to 6,525 12.0 + 35
   6,875 to 7,125 12.0 + 55 + 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) 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.

   [ 68 FR 12769 , Mar. 17, 2003]


Goto Section: 74.635 | 74.637

Goto Year: 2020 | 2022
CiteFind - See documents on FCC website that cite this rule

Want to support this service?

Report errors in this rule. Since these rules are converted to HTML by machine, it's possible errors have been made. Please help us improve these rules by clicking the Report FCC Rule Errors link to report an error.
Helping make public information public