47 CFR 22.355 - Frequency tolerance.
Except as otherwise provided in this part, the carrier frequency of each transmitter in the Public Mobile Services must be maintained within the tolerances given in Table C-1 of this section.
Table C-1 - Frequency Tolerance for Transmitters in the Public Mobile Services
|Frequency range (MHz)||Base, fixed
| Mobile >3 watts
|25 to 50||20.0||20.0||50.0|
|50 to 450||5.0||5.0||50.0|
|450 to 512||2.5||5.0||5.0|
|821 to 896||1.5||2.5||2.5|
|928 to 929||5.0||n/a||n/a|
|929 to 960||1.5||n/a||n/a|
|2110 to 2220||10.0||n/a||n/a|