Re: Stereo vs. Mono: Q about AM Stereo

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Article #21324

#21324

From: Isaac S Wingfield
Date: Fri, 05 May 1989 00:10

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York David Anthony writes:

>the FM noise penalty is     
>approximately 3 dB for stereo (because the total permissible deviation is       
>reduced by half to accomodate the subcarrier).

It's been a long time, but I believe the SNR penalty for stereo
is about 30dB (29.7 is what comes to mind), and it's not because
the deviation is reduced (it's not), but because the noise bandwidth
is 53kHz instead of 15kHz. He's right about multipath being much
worse.

Isaac   isw@cup.portal.com

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!cs.utexas.edu!uunet!portal!cup.portal.com!ISW
From: ISW@cup.portal.com (Isaac S Wingfield)
Newsgroups: sci.electronics
Subject: Re: Stereo vs. Mono: Q about AM Stereo
Message-ID: <17951@cup.portal.com>
Date: 5 May 89 00:10:41 GMT
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