DTMB vs CMMB | Difference between DTMB and CMMB
This page compares DTMB vs CMMB and mentions difference between DTMB and CMMB with respect to various parameters.
Introduction: DTMB and CMMB are multimedia broadcasting techniques used in Republic of China. DTMB is digital TV standard used in mobile and fixed devices. CMMB is mobile TV and multimedia standard developed/specified in China under mobile scenario.
| Parameters | DTMB | CMMB |
|---|---|---|
| Full Name | Digital Terrestrial Multimedia Broadcast | China Multimedia Mobile Broadcasting |
| Modulation | OFDM (1.5 MHz) | OFDM 2/8 MHz |
| Resolution | Upto high definition 1080i | Low definition of 320p |
| Usage or Application | Terrestrial and Mobile television | Mobile television |
| Frequency band | UHF and VHF Bands in MHz range | 2.6 GHz |
| Channels | SD channels (6 to 15), HD channels (1 or 2) | 25 video channels, 30 audio channels |
| HDTV broadcast | Supported | Not supported as CMMB uses QCIF or QVGA |
| Usage | Small screen devices in mobile scenario | Large screen devices in fixed scenario |
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