SWRA601L April 2019 – October 2024 CC1350 , CC1352P , CC1352P7 , CC1352R , CC2340R5 , CC2540 , CC2540T , CC2541 , CC2541-Q1 , CC2640 , CC2640R2F , CC2640R2F-Q1 , CC2642R , CC2642R-Q1 , CC2650 , CC2650MODA , CC2652P , CC2652R , CC2652R7 , CC2652RB , CC2652RSIP
Under Part 15 of the FCC rules, all electronic devices with a clock or oscillator exceeding 9 kHz need to be verified that they are not causing harmful radiated emissions. FCC Part 15 covers unintentional testing and evaluation as well as low power un-licensed transmitters. In addition, all transmitters must be registered and certified by the FCC to ensure they are not causing harmful emissions and interference on regulated frequencies.
Section 15.209 of the radio contains general radiated emission limits that apply to all Part 15 transmitters using frequencies at and above 9 kHz. Section 15.247 and 15.249 provide more detailed information about the emission requirements in the unlicensed 2.4 GHz ISM band. Bluetooth Low Energy products are typically certified under 15.247 as Systems Using Digital Modulation. This allows the radio to have higher output power than under 15.249, which is limited to 0 dBm. Bluetooth Low Energy is not considered FHSS under FCC.
There are two ways of getting a FCC certification: directly from the FCC or through a Telecommunications Certification Body (TCB). For almost all devices, you can chose either to use a TCB or FCC for the certification. The exception is when the equipment uses new technology or when the test methods are undefined or unclear, then FCC is the only party that can provide certification.
Devices can reuse a modular radio pre-certification provided that the module manufacturer's layout and placement guidelines are strictly followed, including display of the module's FCC ID. For more information, see the module provider's data sheet.