A 60 Field/Sec Variation on NTSC for Simulcasting with ATV
The Grand Alliance ATV system is designed for both the NTSC field frequency 59.94 Hz and 60 fields/sec. The only reason for the NTSC field rate is to facilitate simulcasting as the new service is being introduced. This paper introduces an alternative to two field rates for ATV a variant of NTSC for simulcasting. This variation retains the present color subcarrier frequency, but operates at 60 fields/sec with a horizontal scan rate of 15,750 lines/sec — the same rates as the 525-line monochrome system employed. Theory is explained, and experiments conducted to date are described.
- Print ISSN
- 0036-1682
- Published
- 1995-10
- Content type
- Original Research
- DOI
- 10.5594/J17667
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