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Old 03-30-2017, 01:40 PM
centralradio centralradio is offline
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Quote:
Originally Posted by benman94 View Post
There was an experimental system at RCA in the 80s that would have provided something akin to HD 16:9 (or something near it) in an all analog system that was backward compatible to boot. You could have flipped on a 630TS and watched a show being broadcast in "HD" with no converter box.

The FCC pissed away 70 some odd years of compatibility for a DTV system that won't work 10 feet from the transmitter... it's absolute bullshit.
Quote:
Originally Posted by old_tv_nut View Post
The RCA compatible system basically could not be made to work. It was the most technically competent proposal for a compatible system. It depended on adding additional resolution components in the "Fukinuki hole," as well as other places in the spectrum. The Fukinuki (Takahiko Fukinuki, at Hitachi) frequencies are interlaced with the luma similar to NTSC chroma, but with an opposite phase sequence. The result is flickering interference in both color and luminance on edges in existing sets, that supposedly could be integrated out by the eye - but they could never find an amplitude level that would both make the added resolution noise-free and keep the interference in existing sets to tolerable levels.

Once successful and superior digital picture quality was demonstrated, RCA and other analog proponents either dropped out of the running, or in the case of the Japanese 6 MHz MUSE system, were rejected even by the inexperienced viewers in subjective testing, who could plainly see the poor quality compared to digital coding.

Multiple organizations had put their best efforts into analog or hybrid systems (23 were proposed at the start!), but none of them turned out to be feasible - either they weren't compatible or they didn't provide sufficient quality HD pictures, or both. One or two from less-than-competent proponents tried to defy the laws of physics in some way, and of course failed completely.
Too bad these system did not pull though.
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