Path: 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 References: <4046@bgsuvax.UUCP> <1968@hp-sdd.hp.com> <1480@unccvax.UUCP> Distribution: usa Organization: The Portal System (TM) Lines: 13 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