“IBOC Digital AM and FM Technology Launch Transcript of NAB 2002 Press
Conference”

“In terms of coverage, the answer is it replicates the existing analog
coverage, and that is all it can do. Not technically, but because of a
regulatory reason. We could easily boost the IBOC power, but guess
what, then that steps on the station next door.”

http://web.archive.org/web/200304051.../pr/040802.htm

LMFAO!!! Gotcha!!!