Terminology » Other Wireless » FM vs DAB+: Understanding the Key Differences

FM vs DAB+: Understanding the Key Differences

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fm
dab+
modulation
broadcasting

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.

ParametersFMDAB+
Frequency87.5 MHz to 108 MHz Band II174 to 240 MHz Band III
Programs per channel19 to 24 (Typically), 64 (Max.)
Data per channelRBS 1, 2 KbpsFlexible program associated and Non-program associated data rates
Channel Bandwidth200 KHz1.5 MHz
BW capacityNot Applicable1.5 Mbps
Modulation typeSingle carrier FM (-100 KHz to +100 KHz)Multi carrier (1536) OFDM, DQPSK type modulation over -768KHz to +768KHz
Digital data speed (Kbits/sec)NA2400
Spectrum Efficiency (bits/sec/Hz)1.20.34 to 0.67
IBOC Basics: In-Band On-Channel Digital Radio

IBOC Basics: In-Band On-Channel Digital Radio

Explore IBOC technology, which delivers CD-quality audio and data services over existing FM channels using hybrid, extended hybrid, and all-digital modes.

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iboc
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