Sec.  23.16   Frequency tolerances.

   (a) The frequency tolerance for stations in the International Fixed Public
   Radiocommunications  Services shall be maintained as prescribed in the
   following table:
   Frequency range Tolerances applicable to new transmitters installed after
   September 19, 1973, and to all transmitters after September 19, 1975
   Percent Parts per million
   10 to 50 kHz .1 1000
   50 to 535 kHz .02 200
   1605 to 30,000 kHz .0015 15
   30 to 50 MHz .002 20
   50 to 000 MHz .0005 5
   1000 to 1850 MHz .001 10
   1850 to 1990 MHz .02 200
   1990 to 2500 MHz .001 10
   2500 to 10,500 MHz .03 300
   10,500 to 40,000 MHz .05 500

   (b)  Until September 19, 1975, the frequency tolerance of transmitters
   installed at stations in these services before September 19, 1973, and
   operating within the frequency bands set forth below, shall be maintained
   within the following limits:
    Frequency range  Tolerance (percent)
   10 to 50 kHz                      0.1
   50 to 535 kHz                    0.02
   1605 to 30000 kHz               0.003
   Above 30 MHz                     (^1)

   ^1As set forth in the radio station license.

   [ 38 FR 27386 , Oct. 3, 1973]