UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

ppppenguin · 8th Sep 2004, 5:09 pm

I don't think you need the 33 degree shift. You can consider NTSC as modulated on the U and V axes. You can modulate and demodulate on those axes. The only thing you lose is the wider I bandwidth. I believe that very few coders or sets actually use the I and Q axes with their different bandwidths.

8th Sep 2004, 5:09 pm	#8
ppppenguin Retired Dormant Member Join Date: Dec 2003 Location: North London, UK. Posts: 6,168	Re: 405 NTSC colour I don't think you need the 33 degree shift. You can consider NTSC as modulated on the U and V axes. You can modulate and demodulate on those axes. The only thing you lose is the wider I bandwidth. I believe that very few coders or sets actually use the I and Q axes with their different bandwidths.