StacksVerified U.S. regulatory reference

47 CFR §90.213

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Unless noted elsewhere, transmitters used in the services governed by this part must have a minimum frequency stability as specified in the following table.
  2. (b)For the purpose of determining the frequency stability limits, the power of a transmitter is considered to be the maximum rated output power as specified by the manufacturer.