[QuadList] FCC and NTSC

Shai Drori srdbx at netvision.net.il
Mon Dec 23 13:22:09 CST 2013


Does anyone remember who it was about 3-4 years ago that actually did 
the math how many TV sets might have had a real problem with the beat 
came up with about 500 sets in the whole of the US of A? I don't 
remember who it was but I remember I had such a stomach ache from 
laughing my !@#$ off. All this crap you guys had to deal with for 
decades over something that *might have* affected 500 sets.
Still chuckling
Shai


?????? 23/12/13 9:04 PM, ????? quadlist-request at quadvideotapegroup.com:
> There was a potential harmful beat from the 3.58 MHz (Color) and the 4.5Mhz (Audio)in the TX. This 920KHZ fell on an energy band and would have caused a problem as audio changed. Since the FCC said no to moving the 4.5MHz by even just a bit the only thing left to move a bit was the 15,750 line rate, Thus the vert moved a bit.
> I have read that we could have left 15,750 (and vert)  alone; new color TX's could have been 4.505 MHZ and existing B&WTX's  could have been adjusted to 4.05 and existing B&W sets would have tuned the audio ok. I wonder is that true?
> If so we would have far less formats and no D.F. time code.

-- 
Cheers
Shai Drori
Timeless Recordings
srdbx at netvision.net.il
?????,
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????? ?????? ????? ?? ????? ????? ?????? 8-35 ??.

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