FM vs DAB+: Understanding the Key Differences
By RF Wireless Expert Team
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This page compares FM vs DAB+ and highlights the key differences between them concerning various parameters.
Introduction:
Both FM and DAB+ are used for radio broadcasting. FM is an analog technique, while DAB+ is a digital technique for radio broadcasts. DAB+ is essentially an upgraded version of DAB.
| Parameters | FM | DAB+ |
|---|---|---|
| Frequency | 87.5 MHz to 108 MHz Band II | 174 to 240 MHz Band III |
| Programs per channel | 1 | 9 to 24 (Typically), 64 (Max.) |
| Data per channel | RBS 1, 2 Kbps | Flexible program associated and Non-program associated data rates |
| Channel Bandwidth | 200 KHz | 1.5 MHz |
| BW capacity | Not Applicable | 1.5 Mbps |
| Modulation type | Single carrier FM (-100 KHz to +100 KHz) | Multi carrier (1536) OFDM, DQPSK type modulation over -768KHz to +768KHz |
| Digital data speed (Kbits/sec) | NA | 2400 |
| Spectrum Efficiency (bits/sec/Hz) | 1.2 | 0.34 to 0.67 |
Continue Learning DAB (Digital Audio Broadcasting)
Deep dives into the standard that is replacing analog FM radio in many parts of the world, offering better sound quality and multiplexed channels.