441-line Television System
441 lines, or 383i if named using modern standard, is an early electronic television system. It was used with 50 interlaced frames per second in France and Germany, where it was an improvement over the previous 180-line system. In North America it was used by RCA with 60 frames per second from 1938 to 1941.
| System | Field frequency | Active picture | Field blanking | No. of broad pulses | Broad pulse width | Line frequency | Front porch | Line sync | Back porch | Active line time | Video/syncs ratio |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 441 lines | 50 Hz | 383 lines | 29 lines | 8 per field | 36.3 µs | 11025 Hz | 1.0 µs | 9.0 µs | 6.3 µs | 74.3 µs | 70/30 |
Read more about 441-line Television System: Use in Germany, Use in France, Use in Italy, North America
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