3 ms·
Digital Radio Mondiale (DRM) – PC-Based Receivers and Software
- MisterTea 5y agoThe thing that bothers me about digital radio is the simple fact that I cannot build a crystal receiver to listen to news or emergency broadcasts. Likewise, you can build an FM receiver with just a few transistors and passive components. Another downside is all the old radios I have will stop working and will need to go into the trash.
- szszrk 5y agoDon't throw your radios yet. AM, FM and SSB radio is still present, used for communication and used as actual permanent radio stations with music, news and so on. It slowed down significantly, for sure, but it's not dead. It's popularity spiked very recently in Europe once again during war times. BBC just renewed their broadcast on shortwave after ... 14 years of silence, to cover news on Ukrainian situation.
- wildzzz 5y agoIs everyone moving to DRM broadcasting? Depending on the bandwidth selected for a particular band, a station could support having both the original analog signal and a digital sideband signal. Simulcast seems like the best way to roll this out, everyone with old receivers can still get the same signals but those willing to invest the money can get nice clear voice over digital. In the US, we have HD Radio that sits in the sideband of standard VHF radio stations. Some car radios support this mode so you can browse to the other subchannels (news, traffic, weather, gospel music, Spanish radio, etc) but when the signal degrades, it switches back to the analog signal. Some of these digital radio standards are open which means you can build your own receiver using an SDR dongle and some software (dedicated software or GNURadio). Building software modems are pretty fun, you get to ignore the issues with analog circuit design and can solely focus on block diagrams.
- ajsnigrutin 5y agoYep... cars are just getting DAB(+) as standard, and now this?