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

FM vs DRM+: Understanding the Key Differences

fm radio drm+ radio broadcasting digital radio analog radio

This page compares FM vs DRM+ and mentions the difference between FM and DRM+ with respect to various parameters.

Introduction: Both FM and DRM+ are used for radio broadcasting. FM is an analog technique, whereas DRM+ is a digital technique for radio broadcasts. DRM+ is an upgraded version of DRM.

ParametersFMDRM+
Frequency87.5 MHz to 108 MHz (Band II)47 MHz to 68MHz, 87.5 MHz to 108 MHz, 174 MHz to 230 MHz
Programs per channel11 to 4 (Max.)
Data per channelRBS 1, 2 KbpsFlexible program associated and Non-program associated data rates
Analog SimulcastNot ApplicableSupported
Channel Bandwidth200 KHz96 KHz
BW capacityNot Applicable96 Kbps
Modulation typeSingle carrier FM (-100 KHz to +100 KHz)Multi carrier (106) OFDM, 4 to 16 QAM modulation over -48KHz to +48KHz
Digital data speed (Kbits/sec)NA120
Spectrum Efficiency (bits/sec/Hz)1.20.7