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Article #198Re: Using an FM-Carrier for the Y [Luminance] Signal -- how to relieve the bandwidth issue?
From: Green Xenon [Radium]
Date: Thu, 01 Nov 2007 19:31
Date: Thu, 01 Nov 2007 19:31
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Bob Myers wrote: > "Green Xenon [Radium]" <glucegen1@excite.com> wrote in message > news:47295e0d$0$11519$4c368faf@roadrunner.com... > >>Anyways, the QAM should be given the highest practical bit-resolution. >>1-symbol-per-second should be the baud. > Fine, but the question remains - what the hell is so important > about "1 symbol per second"? Why do you CARE? I want to send the most information using the least bandwidth. >>The minimum voltage should be set to 1.6e-19 volt. This is the voltage of >>one electron. > Wrong. Electrons have charge, expressed in coulombs, not > voltage. Go figure out the difference, and come back. A charge can generate a voltage. An area with one free electron vs. a area with no free electrons has a difference of 1.6e-19 volt because a single electron has a negative charge of 1.6e-19 coulomb. >>The bit-resolution should be high enough that each "level" is a difference >>of 1.6e-19 volt from the level above/below. A resolution of 8-bit allows >>for only 256 different levels -- obviously *way* too low. > Way too low for WHAT? Deciphering all those voltage levels with differences of 1.6e-19 volt and with 1.6e-19 volt being the lowest voltage and the maximum voltage being just low enough *not* to do any of the following to any extent: 1. Exceed the dielectric strength of any electronic component 2. Generate temperatures above 70 Fahrenheit in any electronic component 3. Ionize any electronic component 8-bits of resolution simply isn't *nearly* enough for this task. >>The original Y signal is converted to QAM. This QAM signal is then >>broadcasted on an FM radio carrier wave whose base frequency is 300 Hz. >>300 Hz is the lowest ULF frequency and the lowest frequency used by >>telephones. > Restating nonsense doesn't make it less nonsensical. What does > "QAM...on an FM radio carrier wave" MEAN on your planet? A QAM signal in broadcasted on an FM radio wave. What don't you understand about this? > The rest is just gibberish as well. How so?
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X-Google-Thread: f928c,9d8320c16fbdcf84 X-Google-Thread: ffcae,7e05cb8426dfb96 X-Google-Thread: 107cee,7e05cb8426dfb96 X-Google-Thread: f7d8a,9d8320c16fbdcf84 X-Google-Thread: fdad6,9d8320c16fbdcf84 X-Google-Attributes: gidf928c,gidffcae,gid107cee,gidf7d8a,gidfdad6,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news2.google.com!news1.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!nx01.iad01.newshosting.com!newshosting.com!post02.iad01!roadrunner.com!not-for-mail Date: Thu, 01 Nov 2007 11:31:40 -0800 From: "Green Xenon [Radium]" <glucegen1@excite.com> User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8b) Gecko/20050217 MIME-Version: 1.0 Newsgroups: uk.tech.digital-tv,uk.tech.broadcast,sci.electronics.misc,ba.broadcast,alt.radio.broadcasting Subject: Re: Using an FM-Carrier for the Y [Luminance] Signal -- how to relieve the bandwidth issue? References: <46fc71d2$0$24285$4c368faf@roadrunner.com> <u9hus4-6vi.ln1@radagast.org> <4722f832$0$25703$4c368faf@roadrunner.com> <ujr6i3dolk1qjon2ij5tta8aip26tff9qa@4ax.com> <slrnfi6tb4.n9a.pm@thinkpad.nowster.org.uk> <4723dde6$0$19659$4c368faf@roadrunner.com> <1193758919.924634.276450@y27g2000pre.googlegroups.com> <5op40sFnr30mU1@mid.individual.net> <1193769738.441836.79230@k35g2000prh.googlegroups.com> <lISdnTog1rjMCrranZ2dnUVZ8vydnZ2d@pipex.net> <4727a189$0$19640$4c368faf@roadrunner.com> <fgb5ae$6da$1@usenet01.boi.hp.com> <47295e0d$0$11519$4c368faf@roadrunner.com> <fgc1v0$rmh$1@usenet01.boi.hp.com> In-Reply-To: <fgc1v0$rmh$1@usenet01.boi.hp.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Lines: 80 Message-ID: <472a1a50$0$4972$4c368faf@roadrunner.com> Organization: Road Runner High Speed Online http://www.rr.com NNTP-Posting-Host: 75.84.20.87 X-Complaints-To: abuse@rr.com