Re: HD RADIO is no worse than DAB or DRM radio

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Article #821

#821

From: Steve
Date: Sun, 30 Sep 2007 21:40

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On Sep 30, 5:09 pm, "David Eduardo" <da...@davideduardo.com> wrote:
> "SoCal Tom" <m...@champmail.net> wrote in message
>
> news:Crqdndk7urPjlp3anZ2dnUVZ_g-dnZ2d@championbroadband.com...
>
>
>
> > "SFTV_troy" blabbed:
> > <... this new receiving technique would not improve the sound
> >> (it would still be limited from 100-6000 hertz), but would only reduce
> >> interference.
>
> > At least in the States, AM & FM broadcasting is limited to 50 Hz to 15KHz.
>
> AM is restricted by the NRSC standard to a 10 kHz brick wall.
>
>
>
> > Digital broadcasting is limited to under 20 Hz to over 20KHz, or
> > basically, the extent of the normal human hearing range.
>
> > If you're listening to 100 to 6,000 Hz, you're listening to a poor
> > telephone connection.
>
> Bob Orban, on the NRSC committee, found that consumer radios almost without
> exception, rolled off by at least 10 db by 4.2 kHz, and passed practically
> nothing over 5 kHz.

That's funny, I just asked Bob if he 'found' this and he said no way,
that you're basically just making shit up off the top of your head.

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From:  Steve <sdaniel13@speakeasy.net>
Newsgroups: rec.audio.tech,rec.audio.car,rec.radio.shortwave,ba.broadcast
Subject: Re: HD RADIO is no worse than DAB or DRM radio
Date: Sun, 30 Sep 2007 14:40:46 -0700
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