🚀 go-pugleaf

On Oct 4, 7:31 am, SFTVratings_t...@yahoo.com wrote:
> Hein ten Horn wrote:
> > SFTVratings_t...@yahoo.com wrote
>
> > > DRM has a hybrid digital/analog mode.  See this manual,
> > > page 20.  Notice how the DRM sits "in-band on-channel"
> > > same as the HD Radio works.
> > >www.drm.org/pdfs/Broadcast_Manual.pdf
>
> > No, the manual does not state
> > "DRM has a hybrid digital/analog mode".
> > A simulcast is not necessarily hybrid.
>

- By that reasoning, HD Radio is not a hybrid format, because
- the digital information sits *next to* the AM signal.

SFTV -aka- "Hybrid Digital" Man,

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.

Now For The Third Time :

iBiquity's IBOC Broadcast System is a Dual Mode Broadcasting
Scheme; with both the Analog AM and Digital Signals 'being'
"Intrinsic" to the Radio Transmission Process.

The Key Word Being : "Intrinsic"
http://www.answers.com/intrinsic&r=67

The DRM Broadcast System was initally designed and implemented
as a Single (1) Mode All Digital Broadcasting Scheme.

Note - Simulcasting and Analog AM Signal along with the Digital is
a 'possibility' but is NOT currently done on the Shortwave Radio
Band.

FWIW - The DRM Digital Signal 'may' be Broadcast along side
of an Analog AM Signal {Co-Channeled} -but- Both Signals are
Broadcast Separately and are 'independent' of each other; they
are NOT "Intrinsic" to each other as part of a Unified Radio
Broadcast System.

Caution - That the DRM Digital Signal has to be 'reduced' when
it is Broadcast along side an Analog AM Signal to prevent any
Interference to the Analog AM Signal.

The-Bottom-Line : Presently in the Shortwave Bands DRM
is Broadcast 'solely' in the 100% Digital Mode; as it was
designed to do.

for the third time or more - keeping it simple and practical ~ RHF
 .

>
> HD Radio is a simulcast format.
>
> > [quote]
> > DRM supports a number of different simulcast options. Currently the
> > supported simulcast modes require the use of additional spectrum outside
> > an assigned 9 or 10 kHz channel (Multi-Channel or Multi-frequency
> > Simulcast, MCS). The DRM signal can be located in the next adjacent
> > upper or lower channel and can occupy a half or whole channel
> > depending on the bandwidth option chosen.
> > [unquote]
>
> > So far nothing about IBOC.
>

- Okay.  By that reasoning, because HD Radio sits "next to" the
- AM signal, then it is not IBOC either.  It is a simulcast format.
-
- Do you agree with that statement?

no ! - and saying it again does not make it so . ~ rhf
 .