Radio Republik Indonesia (RRI) has just conducted measurements proving the DRM in FM is spectrum, energy efficient delivering audio and text in superior quality without any interference even in very crowded FM environments.
RRI has always been on the forefront in the field of radio broadcasting and on-line radio.
The successful testing and measurements carried out in July came on the back of pioneering DRM deployments in the FM band.
Finally reached to the conclusion: Based on the results of the field measurements obtained in the six test points covered by the 1kW transmitter it was noted that these can be served with only 50 watts of DRM power delivering throughout a good DRM audio quality. In testing a simulcast broadcast using 1 kW and 800 Watt with spacing distance 150 kHz between the middle frequency FM and DRM, the measurement showed no interference between FM and DRM. The DRM quality was at least equally good to FM, but the sound quality of DRM was even better than FM.
The field test results are thus consistent with the ITU-R Recommendations BS. 1114 and BS. 1660.
For details click link below.
https://www.drm.org/drm-for-fm-measures-up-to-expectations-in-indonesia/
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