Goto Section: 74.655 | 74.662 | Table of Contents

FCC 74.661
Revised as of October 1, 2014
Goto Year:2013 | 2015
  § 74.661   Frequency tolerance.

   Stations in this service shall maintain the carrier frequency of each
   authorized transmitter to within the following percentage of the
   assigned frequency.
   Frequency band
   (MHz) Frequency tolerance (%)
         2,025 to 2,110          ^10.005
         2,450 to 2,483.5        ^20.001
         6,425 to 6,525            0.005
         6,875 to 7,125          ^10.005
         12,700 to 13,250        ^10.005
         17,700 to 18,820          0.003
         18,920 to 19,700          0.003

   ^1Television translator relay stations shall maintain a frequency
   tolerance of 0.002%.

   ^2Stations licensed pursuant to an application filed before March 17,
   2005, for tolerance values exceeding those specified above, may
   continue to operate indefinitely in accordance with the terms of their
   current authorizations, subject to periodic renewal. Existing equipment
   and equipment of product lines in production before April 16, 2003,
   authorized via certification or verification before March 17, 2005, for
   tolerance values exceeding those specified above, may continue to be
   manufactured and/or marketed, but may not be authorized for use under
   station license except at stations licensed pursuant to an application
   filed before March 17, 2005. Any non-conforming equipment authorized
   under a station license, and replaced on or after March 17, 2005, must
   be replaced by conforming equipment.

   [ 52 FR 7143 , Mar. 9, 1987, as amended at  68 FR 12772 , Mar. 17, 2003]

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Goto Section: 74.655 | 74.662

Goto Year: 2013 | 2015
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