On Sep 2, 1:05*pm, Richard Evans
wrote:
If they wanted to use the FM band, they may have been better off using DRM+.

Much more spectrally efficient.
Likely to provide better sound quality.
The only licensing requirement is for decoding of aac+.
Better control of which frequencies to use, hence more chance of
avoiding interference to FM services.

IBOC is about 'morphing'* the existing FM Radio Band
not replacing all at once with a new Technology or
an new FM/UHF Band.

* Creating a natural Analog to Digital transition over
a Decade or two as both Radio Listeners and Radio's
in-service migrate from the old mode to the new mode.

IBOC - iBiquity Finally Under Investigation
-ROTFL- ~ RHF
Lawsuit Most Likely Going Nowhere
http://groups.google.com/group/ba.br...b5d6149534c9ae