FWIU there are also DVB data streams?
There's also a special stream for emergency alerts, but I haven't seen it in use.
There are various data streams, but not DVB.
A lot of the details are described in the standard: https://www.nrscstandards.org/standards-and-guidelines/docum...
What needs to be done to link WEA Wireless Emergency Alerts with HD radio data streams? WX radio could possibly embed a data channel? If it doesn't already for e.g. accessible captioning?
DVB-T: https://en.wikipedia.org/wiki/DVB-T :
> This system transmits compressed digital audio, digital video and other data in an MPEG transport stream, using coded orthogonal frequency-division multiplexing (COFDM or OFDM) modulation.
From https://www.rtl-sdr.com/about-rtl-sdr/ :
> The origins of RTL-SDR stem from mass produced DVB-T TV tuner dongles that were based on the RTL2832U chipset. [...]
> Over the years since its discovery RTL-SDR has become extremely popular and has democratized access to the radio spectrum. Now anyone including hobbyists on a budget can access the radio spectrum. It's worth noting that this sort of SDR capability would have cost hundreds or even thousands of dollars just a few years ago. The RTL-SDR is also sometimes referred to as RTL2832U, DVB-T SDR, DVB-T dongle, RTL dongle, or the "cheap software defined radio"
From https://www.reddit.com/r/RTLSDR/comments/6nsnqy/comment/dkbv... :
> [You need an upconverter to receive the time from the WWV shortwave clock station on 2.5, 5, 10, 15, and 20 MHz] http://www.nooelec.com/store/ham-it-up.html
From https://news.ycombinator.com/item?id=37712506 :
> TIL there's a regular heartbeat in the quantum foam; [...] https://journals.aps.org/prresearch/abstract/10.1103/PhysRev...
https://github.com/cmnybo/nrsc5-gui https://github.com/markjfine/nrsc5-dui https://github.com/KYDronePilot/hdfm