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| International Transmission
Standards |
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| a | b | c | d | e | f | g | h | i | j | k | l | m | n | o | p | q | r | s | t | u | v | y | z |
| Country | Lines/Colour | Voltage | Frequency |
| Macau | 625 PAL | 240/220V | 50/60Hz |
| Macedonia | 625 PAL | 220V | 50Hz |
| Madagascar | 625 SECAM V | 220/127V | 50Hz |
| Madeira | 625 PAL | 240/220V | 50/60Hz |
| Malaysia | 625 PAL | 240V | 50Hz |
| Maldives | 625 PAL | 230V | 50Hz |
| Mali | 625 SECAM | ||
| Malta | 625 PAL | 240V | 50Hz |
| Martinique | 625 SECAM V | 127V | 50Hz |
| Mauritania | 625 SECAM H | ||
| Mauritius | 625 SECAM | 230V | 50Hz |
| Mayotte | 625 SECAM | ||
| Mexico | 525 NTSC | 220V | 60Hz |
| Micronesia | 525 NTSC | 240/120V | 50/60Hz |
| Midway Island | 525 NTSC | 240/120V | 50/60Hz |
| Moldova | 625 SECAM | 50Hz | |
| Monaco | 625 SECAM V / PAL | 220/127V | 50Hz |
| Mongolia | 625 SECAM | 220V | 50Hz |
| Montenegro | 625 PAL | ||
| Monserrat | 525 NTSC | 230V | 60Hz |
| Morocco | 625 SECAM V | 220/127V | 50Hz |
| Mozambique | 625 PAL | 220V | 50Hz |