It is all over the place, here. Some stations have both RDS and
digital audio as digital here is on the same channel.
"Mrs. Lynnette Annabel Smith" writes:
> RDS is very widely used here; my own in-car audio system supports it. My
> system is both analogue and digital.
>
> RDS is also used to adjust the frequency if, when you're listening to a
> national station over here, for instance, you move out of range of a
> transmitter. The tuner automatically tunes to the next transmitter in the
> geographical sequence. But I personally have never encountered a radio
> which can speak the RDS data. I doubt it would be possible using static
> speech because there are too many variations which appear on the display.
I wonder if the British RDS system is the same one we
have here?
If I connect a short wave receiver to the discriminator
output of an FM radio, I can easily tell who has RDS. It is a
rhythmic digital whine around 57 KHZ. The rhythm is due to the
fact that it keeps repeating the display information until
something new is transmitted such as when the song changes.
Obviously, this does no good for accessibility, but
there is no technical reason at all why somebody couldn't come
out with either a talking radio or better yet, a bluetooth
device one could use with an iphone or something similar.
>
> Gordon used to have the Pure Digital radio that spoke using static speech
> and to be honest it was pretty basic. But I gather that Pure have stopped
> making talking radios and I have never encountered another manufacturer
> making them; and yes, I have looked.
>
> Gordon isn't interested in FM radio much any more to be honest.
> Everything we listen too is on digital and the quality is far superior.
FM stations here have caught the same disease. Never has
garbage been delivered with such amazing clarity.
You can hear every one of the five or six songs a station plays
and all the ads over and over and over and not miss a single
reverbed automobile or shoe price.
Martin
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