HD Radio US Regulatory Reference for Broadcasters

Description

This page summarizes the United States regulatory background for HD Radio digital broadcasting. It outlines FCC authorization of HD Radio for AM and FM stations, including full-time digital FM operation, multicasting, datacasting, and AM nighttime digital broadcasting.

The content is presented as a concise reference point for broadcasters and industry professionals reviewing the regulatory framework for HD Radio deployment in the United States. It also notes that FCC and industry groups continue to evaluate additional features and service extensions.

Additional resources on approval processes, NRSC standards, and related technical information are linked from the page. The page is focused on regulatory context rather than product marketing or station operations.