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This is a decent dummy introduction to what DAB is: https://en.wikipedia.org/wiki/Digital_audio_broadcasting https://en.wikipedia.org/wiki/Digital_audio_broadc
by phantom_oracle 9y ago
This is a decent dummy introduction to what DAB is:
https://en.wikipedia.org/wiki/Digital_audio_broadcasting https://en.wikipedia.org/wiki/Digital_audio_broadcasting
> DAB is more efficient in its use of spectrum than analogue FM radio, and thus may offer more radio services for the same given bandwidth. DAB is more robust with regard to noise and multipath fading for mobile listening,[3] since DAB reception quality first degrades rapidly when the signal strength falls below a critical threshold, whereas FM reception quality degrades slowly with the decreasing signal.
- dspig 9y agoThat's funny. It should say FM is more robust, for exactly the same reason!
- themodelplumber 9y agoI thought that too. Funny how they spin it the other way, like "hey, signals either win and get transmitted perfectly or lose and aren't receivable, so there's no icky mixing of signals!"
- tinus_hn 9y agoDAB can handle receiving the signal from multiple broadcasting antennas on one frequency (or reflections of the signal from one antenna), where with FM you get interference. So if the infrastructure is good using enough base stations you can get much better coverage. That’s how it is more robust.