Part 15 regulates unlicensed devices, such as Wi-Fi routers and Bluetooth transmitters, to prevent interference with licensed services. It includes technical standards for intentional and unintentional radiators, with power limits for devices in bands like 2.4 GHz and 5 GHz. Wi-Fi's output power is limited to 1 watt in certain U-NII bands. To ensure compliance, devices must undergo testing and meet specific emission thresholds.
Part 88 (UACS) sets technical standards for UAS operations within the 5030 to 5091 MHz band, focusing on CNPC. It allocates 5040 to 5050 MHz for NNA users, who will receive frequency allocations via DFMS. Initially, NNA users access 5040-5060 MHz under the IAM process until DFMS management begins.
Part 17 requires antenna structures over 200 feet or near airports to be registered with the FCC, marked, and lit per FAA guidelines to ensure visibility for aircraft. Technical specifications for lighting types, colors, and marking patterns are based on the structure's height and location. Compliance also involves assessing environmental and historical impacts.
Part 96 governs the Citizens Broadband Radio Service (CBRS), enabling shared use of the 3550-3700 MHz band. It utilizes a three-tier model managed by the Spectrum Access System (SAS) to coordinate spectrum usage dynamically. Devices, known as Citizen Broadband Radio Service Devices (CBSDs), must be certified to interact with the SAS for frequency assignment and comply with power limits based on device categories. ESC systems detect incumbent activity to prevent interference.
Part 90 covers land mobile radio systems used for mission-critical communication in public safety, business, and industrial sectors. It specifies technical standards for frequency bands like VHF (30–300 MHz), UHF (300–3000 MHz), and 700/800 MHz, setting power limits and emission requirements to avoid interference. Frequency coordination is essential for new systems to prevent conflicts, while rules govern modulation, antenna usage, and co-channel separation.
47 CFR Part 5 outlines technical requirements for experimental radio licenses, permitting the testing of new radio technologies and systems. It specifies license types, including Conventional, Broadcast, and Medical Testing. Tests must not interfere with existing radio services, and experiments must operate within authorized parameters, such as frequencies and power limits (47 CFR § 5.3, § 5.83). STAs offer temporary testing for up to six months.
Part 25 outlines technical standards for satellite communication equipment, including power limits, emission control, frequency stability, and interference management for devices such as earth stations, VSATs, and satellite terminals. These standards ensure secure, interference-free operation across licensed satellite bands, supporting applications like broadband, GPS, and international communications in high-demand frequency ranges.
Part 27 sets technical standards for multiple bands (600 MHz to 2.3 GHz and higher), including power limits, out-of-band emission restrictions, and coordination requirements, supporting diverse wireless broadband and IoT applications.
FCC Part 24 specifies PCS band usage, focusing on digital mobile services with 2 W power limits for handheld devices, emission controls, and interference protections within 1850–1990 MHz for clear, efficient operation.