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Wireless Microphones in the TV Bands, 600 MHz Guard Band, 600 MHz Duplex Gap, and the 941.5-944 MHz, 944-952 MHz, 952.850-956.250 MHz, 956.45-959.85 MHz, 1435-1525 MHz, 6875-6900 MHz and 7100-7125 MHz Bands

FR Abstract
In this document, the Federal Communications Commission (Commission) revises the technical rules for low-power auxiliary station (LPAS) devices to permit a recently developed type of wireless microphone system, termed herein as a Wireless Multichannel Audio System (WMAS), to operate in the broadcast television (TV) bands and other LPAS frequency bands on a licensed basis. The Commission adopts technical rules for licensed WMAS operations in specific frequency bands under our LPAS rules and also permits WMAS to operate on an unlicensed basis under the rules in the TV bands and 600 MHz duplex gap. The Commission updates its existing LPAS and technical rules for wireless microphones, which already rely on certain European Telecommunications Standards Institute (ETSI) standards, to incorporate the latest version of that standard where appropriate. Finally, the Commission updates the wireless microphone rules to reflect the end of the post-Incentive Auction transition period. The Commission's goal in the FCC document is to increase wireless microphone spectral efficiency and enable more intensive use in the spectrum available for such operations.
Incorporation
FR Document Number
2024-23959
Federal Register Volume
89
Federal Register Year
2024-10-18
Federal Register Start Page
83789
Federal Register End Page
83800
CFR Citation
47 CFR 74
FR Citation
89 FR 83789
CFR title
47
CFR Part
74
Document Number
ETSI EN 300 422–1 V2.2.1 (2021– 11)
Document Edition
2021
Standard Title
Wireless Microphones; Audio PMSE Up to 3 GHz; Part 1: Audio PMSE Equipment Up to 3 GHz; Harmonised Standard for Access to Radio Spectrum, published November 2021
Excerpts
bandwidth, shall comply with the emission mask in Figure 1 of section 4.2.4.2.2 of ETSI EN 300 422-1 V2.2.1 (2021-11) (incorporated by reference, see § 15.38). (2) Digital systems. Emissions within the band from 2.5 × B below to 2.5 × B above the carrier frequency, where B is the channel bandwidth, shall comply with the emission mask in Figure 2 of section 4.2.4.2.2 of ETSI EN 300 422-1 V2.2.1 (2021-11) (incorporated by reference, see § 15.38). (3) Wireless Multichannel Audio Systems. Emissions within the band from 2.5 × B below to 2
Record Source
www.federalregister.gov