I’ve noticed teletext is sent along with broadcast radio as well. E.g. smartphones with an FM receiver are able to show the station callsign and the name of the currently playing artist. So my question is, is scheduling information also included in that data stream so we know what programs are coming on the radio station at what times?
I don’t believe so, no. The datastream is RDS or RDBS rather than Teletext. More details here
RDS, as mr goose below said. It also contains an accurate time signal, and some cars use that to correct their clock.
Mr Goose! I love it. Makes me feel a bit old though. Hold on a minute, according to the RDS wiki page, I’m older than RDS. Damn!
Great question. It’s not teletext, but similarly adding digital data onto a traditional analogue FM signal.
Not sure where you are, but if you’re in the UK, it’s RDS that does the magic.
Given its age, it’s a pretty awesome system!
On DAB, there is the possibility to have an EPG. The BBC broadcast an EPG for a while but so few radios made use of it, I don’t think they still do.