Standards Archive
These documents have either been superceded by an updated version or retired.
NRSC-1
: NRSC AM Preemphasis/deemphasis and Broadcast Audio Transmission Bandwidth Specifications (1988)
NRSC-2
: Emission Limitation for AM Broadcast Transmission (1988)
NRSC-3
: Audio Bandwidth and Distortion Recommendations for AM Broadcast Receivers (RETIRED SEPTEMBER 2007)
NRSC-4
: United States RBDS Standard (1998)
NRSC-4
: United States RBDS Standard (2004)
NRSC-5
: IBOC Digital Radio Broadcasting Standard (April 2005)
NRSC-5-A
: IBOC Digital Radio Broadcasting Standard (September 2005)