567-line television system
This would have meant that the NTSC sound carrier frequency of 4.5 MHz above the picture carrier, would have also been the standard for Europe, and hence been a lot more common world wide.
|System||Lines||Frame rate||Channel bandwidth (in MHz)||Visual bandwidth (in MHz)||Sound offset||Vestigial sideband||Vision mod.||Sound mod||Aspect ratio||Effective resolution (4:3).|
|567 Line||567||25||6||4.2||+4.5||LSB cut @ -0.75 MHz||Neg.||FM||4:3||740 x 485 (theoretical)|
The proposal was defeated as Russian engineers had already shown how NTSC could be easily adapted to a higher resolution by breaking with NTSC bandwidth restrictions, and moving the sound carrier up 2 MHz from 4.5 to 6.5 MHz, along with 625 line scanning.
- "Philips Netherland 567 line TV Standard" (in German). Radiomuseum.org. Retrieved 2011-06-20.
- "Philips 567 Zeilen Standard - The Philips 576 line TV system". Scheida.at. 1951-10-02. Retrieved 2011-06-20.