Re: DRM -Ain't- IBOC

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Article #529

#529

From: RHF
Date: Tue, 09 Oct 2007 19:06

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On Oct 9, 10:19 am, "David Eduardo" <da...@davideduardo.com> wrote:
> "SFTV_troy" <SFTV_t...@yahoo.com> wrote in message
>
> news:1191950205.808493.159200@g4g2000hsf.googlegroups.com...
>
>
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> > 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.
>
> No, DRM is 100% digital. To run analog simultaneously you need a separate
> frequency. Some testing is being done, like that in Mexico, by placing the
> DRM signal on the adjacent AM channel... a station on 1060 is going to have
> DRM on 1070.- Hide quoted text -
>
> - Show quoted text -

d'Eduardo -IIRC- France is also testing the same Co-Channel
Simulcast process in the Medium Wave Band.

IMHO - The better scheme would be to have a 50 kHz Separation
between the Two Simulcast Signals : This would allow both to be
Broadcast at Full Power and reduce any Co-Channel Interference
between the Two. ~ RHF
 .

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From:  RHF <rhf-newsgroups@pacbell.net>
Newsgroups: rec.audio.tech,rec.audio.car,rec.radio.shortwave,ba.broadcast
Subject: Re: DRM -Ain't- IBOC
Date: Tue, 09 Oct 2007 12:06:51 -0700
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