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General Asylum General audio topics that don't fit into specific categories. |
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In Reply to: RE: Here's A More Direct Source posted by Bromo33333 on December 12, 2016 at 14:02:31:
It reminds me a little of my early days working on PA's for TV transmitters - the modulation for color TV was a very complicated one with AM, FM and all of that mixed up at once.
I got into it when they were working on the HDTV standards, and back when they were thinking of doing it analog. Quickly they started using QAM signals in Europe (where I was working at the time) when the US went their own way with 8VSB (developed by Zenith before being consumed by, I think, LG or Samsung - can't remember).
Good times.
Glad to see an old RF guy like myself here. Too often people do "engineering by google" so you never know where the other fellow is standing.
Didn't know about the commutating time domain sampling method. SOunds like a clever way to re-use circuity or save some costs. Wouldn't occur to me to do it that way. But as a high power RF PA guy, I am all about KISS - and reliability. Since when you are making a 30kW RF system, you really don't want anything to fail!
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"You are precisely as big as what you love and precisely as small as what you allow to annoy you." ~ R A Wilson
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Follow Ups
- RE: Here's A More Direct Source - Bromo33333 14:56:33 12/12/16 (2)
- RE: Here's A More Direct Source - JURB 18:23:05 12/13/16 (0)
- RE: Here's A More Direct Source - Dave_K 08:11:37 12/13/16 (0)
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