International Television System Standards per ITU-R BT.624-4, "Characteristics of Television Systems", formerly known as CCIR Report 624
1. International Channel Standards
| Country | VHF | UHF | Color System | Channel System |
| Argentina | N | - | PAL | US |
| Australia | B | G | PAL | AUSTRALIA |
| Belgium | B | H | PAL | CCIR |
| Brazil | M | M | PAL | US |
| Canada | M | M | NTSC | US |
| Chile | M | - | NTSC | US |
| China | D | D | PAL | CHINA |
| Denmark | B | G | PAL | CCIR |
| Egypt | B | - | SECAM | CCIR |
| Finland | B | G | PAL | CCIR |
| France | E,L | L | SECAM | F |
| German
Democratic Republic |
B | G | SECAM | CCIR |
| Germany, Federal Republic |
B | G | PAL | CCIR |
| Greece | B | G | SECAM | CCIR |
| Hong Kong | I | - | PAL | UK |
| Hungary | D | K | SECAM | OIRT |
| Ireland | A | I | PAL | IR |
| Italy | B | G | PAL | IT |
| Japan | M | M | NTSC-J | US |
| Korea, Republic of | M | M | NTSC | US |
| Mexico | M | M | NTSC | US |
| Morocco | B | - | SECAM | MO |
| Netherlands | B | G | PAL | CCIR |
| New Zealand | B | - | PAL | NZ |
| Norway | B | G | PAL | CCIR |
| Poland | D | K | SECAM | OIRT |
| Portugal | B | G | PAL | CCIR |
| Spain | B | G | PAL | CCIR |
| Switzerland | B | G | PAL | CCIR |
| Sweden | B | G | PAL | CCIR |
| Taiwan | M | - | NTSC | US |
| United Kingdom | A | I | PAL | UK |
| USA | M | M | NTSC | US |
| USSR | D | K | SECAM | OIRT |
| System | # lines | Channel Width (MHz) | Video BW (MHz) | Visual/Aural Separation (MHz) | Vestigial Sideband Width (MHz) | Visual Modulation | Aural Modulation |
| A | 405 | 5 | 3 | -3.5 | 0.75 | POS | AM |
| B | 625 | 7 | 5 | +5.5 | 0.75 | NEG | FM |
| C | 625 | 7 | 5 | +5.5 | 0.75 | POS | AM |
| D | 625 | 8 | 6 | +6.5 | 0.75 | NEG | FM |
| G | 625 | 8 | 5 | +5.5 | 0.75 | NEG | FM |
| H | 625 | 8 | 5 | +5.5 | 1.25 | NEG | FM |
| I | 625 | 8 | 5.5 | +6.0 | 1.25 | NEG | FM |
| K | 625 | 8 | 6 | +6.5 | 0.75 | NEG | FM |
| K1 | 625 | 8 | 6 | +6.5 | 1.25 | NEG | FM |
| L | 625 | 8 | 6 | +6.5 | 1.25 | POS | AM |
| M | 525 | 6 | 4.2 | +4.5 | 0.75 | NEG | FM |
| N | 625 | 6 | 4.2 | +4.5 | 0.75 | NEG | FM |
| NTSC-M | PAL B, G, H |
PAL I | PAL D | PAL N | PAL M | SECAM B, G, H |
SECAM
D, K, K1, L |
|
| Lines/Field | 525/60 | 625/50 | 625/50 | 625/50 | 625/50 | 525/60 | 625/50 | 625/50 |
| Horizontal Frequency | 15.734 kHz | 15.625 kHz | 15.625 kHz | 15.625 kHz |
15.625 kHz | 15.750 kHz | 15.625 kHz | 15.625 kHz |
| Vertical Frequency | 59.94 Hz | 50 Hz | 50 Hz | 50 Hz | 50 Hz | 60 Hz | 50 Hz | 50 Hz |
| Color Sub- Carrier Frequency | 3.579545 MHz | 4.433618 MHz |
4.433618 MHz | 4.433618 MHz | 3.582056 MHz |
3.575611 MHz | 4.2 &
4.4 MHz |
4.2 &
4.4 MHz |
| Video Bandwidth | 4.2 MHz | 5.0 MHz | 5.5 MHz | 6.0 MHz | 4.2 MHz | 4.2 MHz | 5.0 MHz | 6.0 MHz |
| Visual/Aural Separation | 4.5 MHz | 5.5 MHz | 6.0 MHz | 6.5 MHz | 4.5 MHz | 4.5 MHz | 5.5 MHz | 6.5 MHz |
4. NTSC, PAL system IF
frequencies (MHz)
| System | Aural | Visual | |
| NTSC | 41.25 | 45.75 | |
| PAL B, G | 33.4 | 38.9 | |
| PAL B | 31.375 | 36.875 | Australia |
| PAL D | 30.5 | 37 | China |
| PAL D | 32.4 | 38.9 | OIRT |
| PAL I | 32.9 | 38.9 | |
| PAL I | 33.5 | 39.5 | U.K. |
| PAL M, N | 41.25 | 45.75 |
Copyright © 2003 Welt Wireless, Inc. All rights reserved. |