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Article #157Re: Using an FM-Carrier for the Y [Luminance] Signal -- how to relieve the bandwidth issue?
From: Brian Gregory [UK]
Date: Tue, 25 Sep 2007 20:36
Date: Tue, 25 Sep 2007 20:36
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2911 bytes
"Green Xenon [Radium]" <glucegen1@excite.com> wrote in message news:46f86fa7$0$9596$4c368faf@roadrunner.com... > Couldn�t the video signal first be converted to QAM, multiple-level > quadrature modulation, and/or constellation modulation and then > transmitted on a FM radio carrier? > > AFAIK, the QAM/multiple-level-QM/ constellation-modulation version of the > video signal won�t require as much bandwidth as the original video signal. > The original video signal is first converted to bits and symbols and then > transmitted on an FM radio carrier. To make the best use of bandwidth, > limit the baud to only 1-symbol-per-second but pack as many > bits-per-symbol as feasible. Why????? Why make it use more bandwidth by introducing totally superfluous FM modulation?? I'm beginning to think you are a troll. -- Brian Gregory. (In the UK) ng@bgdsv.co.uk To email me remove the letter vee.
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