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Article #124Re: Using an FM-Carrier for the Y [Luminance] Signal -- how to relieve the bandwidth issue?
From: Roderick Stewart
Date: Sat, 27 Oct 2007 10:28
Date: Sat, 27 Oct 2007 10:28
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2442 bytes
In article <4722f832$0$25703$4c368faf@roadrunner.com>, Green Xenon [Radium] wrote: > >>So there is no way to decrease how far the sidebands will go? > > > With FM? �Nope, not in the way you're hoping. �Modulate a carrier Fc > > with a frequency Fm, and the first sidebands will be at Fc+Fm and > > Fc-Fm, just as would be true with AM. �That's the narrowest you can > > get. > > So a higher-frequency modulation signal will result in more distant� > sidebands than a lower-frequency modulation signal? E.g. a 10,000 Hz� > tone will result in sidebands further from the base carrier frequency� > than a 1,000 Hz signal? By George! I think he's got it! Rod.
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X-Google-Thread: f928c,9d8320c16fbdcf84 X-Google-Thread: 1133a5,9d8320c16fbdcf84 X-Google-Thread: 115947,9d8320c16fbdcf84 X-Google-Thread: 1118be,7e05cb8426dfb96 X-Google-Thread: ffcae,7e05cb8426dfb96 X-Google-Thread: 107cee,7e05cb8426dfb96 X-Google-Thread: f508e,9d8320c16fbdcf84 X-Google-Thread: f7d8a,9d8320c16fbdcf84 X-Google-Thread: fdad6,9d8320c16fbdcf84 X-Google-Attributes: gidf928c,gid1133a5,gid115947,gid1118be,gidffcae,gid107cee,gidf508e,gidf7d8a,gidfdad6,public,usenet X-Google-Language: ENGLISH,ASCII Path: arc1-ca.pugleaf.net!g2news2.google.com!news3.google.com!out03a.usenetserver.com!news.usenetserver.com!in04.usenetserver.com!news.usenetserver.com!nx01.iad01.newshosting.com!newshosting.com!novia!border2.nntp.dca.giganews.com!nntp.giganews.com!sn-xt-sjc-05!sn-xt-sjc-06!sn-post-sjc-01!supernews.com!corp.supernews.com!not-for-mail From: Roderick Stewart <escapetime@removethisbit.beeb.net> Newsgroups: uk.tech.digital-tv,rec.video.production,uk.media.tv.misc,sci.electronics.components,uk.tech.broadcast,sci.electronics.misc,aus.radio.broadcast,ba.broadcast,alt.radio.broadcasting Subject: Re: Using an FM-Carrier for the Y [Luminance] Signal -- how to relieve the bandwidth issue? Date: Sat, 27 Oct 2007 11:28:23 +0100 Organization: Posted via Supernews, http://www.supernews.com Message-ID: <VA.0000018f.006be928@removethisbit.beeb.net> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Newsreader: Virtual Access Open Source http://www.virtual-access.org/ Reply-To: escapetime@removethisbit.beeb.net References: <46fc71d2$0$24285$4c368faf@roadrunner.com> <u9hus4-6vi.ln1@radagast.org> <4722f832$0$25703$4c368faf@roadrunner.com> X-Complaints-To: abuse@supernews.com Lines: 18