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Re: Using an FM-Carrier for the Y [Luminance] Signal -- how to relieve the bandwidth issue?

Posted by Sjouke Burry on 09/25/07 20:47

Brian Gregory [UK] wrote:
> "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.
>
Stop wondering, he IS a troll, asking wrong,silly questions,
and crossposting all over the place, hoping to score from
people who think the questions are legit.

 

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