Rules for FM Terrestrial Digital Audio Broadcasting Systems
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Issuing agencies
Abstract
In this document, the Federal Communications Commission (Commission) adopts rules to allow digital FM broadcast radio stations to operate with different power levels on the upper and lower digital sidebands, by notification to the Commission. The rule changes will facilitate greater digital FM radio coverage without interfering with adjacent-channel FM broadcast stations. The intended effect is to advance the broader adoption of digital FM broadcasting by authorizing digital FM broadcasters to implement such asymmetric sideband operation by simple notification to the Commission, rather than by requesting experimental authorization as is the current practice.
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