Sony makes a SW digital model that shows the country on the radio.

How is this possible?

Is the signal from the broadcaster that does this to the radio? Does it
even shows the stations callsign?

As a part of my DXing is just identifying country or stations callsigns.

Although, the more information you could get from the signal, the more fun
it could become.

One good thing about the Internet, once you have a stations callsign,
usually you could just go anytime to their website and get more information.
Wouldn't it be great if a SW radio could do that? LOL!

I hope satellite radio doesn't replace old shortwave!

73