RHF wrote:

As and "EE", your above Statement is NOT Correct nor Clear
and it does not represent the Technical Specification {Facts}
of both iBiquity's IBOC and DRM. Please endeavor to be more
Factual and Accurate in your future representaions here.






There is no technical difference. Both HD radio and DRM operate on
the same principles:
- 2 separate signals
- 1 analog
- 1 digital
- the digital is simulcast "next to" the original analog signal

YOU go read the specs.