Radio operation with RDS (Radio Data System)

To make radio reception even more conven- ient, an ever increasing number of FM radio

AF - alternative frequency

REG - Regional

stations broadcast additional information in parallel with their normal program via the Radio Data System.

As soon as a radio program can be identified, the station name and possibly also a regional identifier will appear in the display, e.g.

“NDR1 NDS” (local radio program in Lower Saxony, Germany).

With RDS, the preset buttons turn into pro- gram buttons. Now you know exactly to which program your set is tuned in, making it absolutely easy to find the desired station quickly.

But RDS even offers you more advantages:

The AF function makes sure that the stron- gest frequency of the selected program is always tuned in automatically.

This function is activated if “AF” lights up in the display. You can then use the << / >> rocker switch to scroll through the programs of a radio network, e.g. from NDR1 to NDR4 (North German broadcaster) or to display the entire AF memory.

To switch AF on/off:

Press AF briefly.

During seek tuning for the frequency offering the best reception of the selected program, the radio is muted for a moment.

If “SEARCH” appears in the display when turning on the set or when calling up one of the stored frequencies, the set is automati- cally searching for an alternative frequency. “SEARCH” goes out as soon as the system has found an alternative frequency or after the frequency band has been scanned com- pletely.

Should the reception quality of the selected program become too bad,

tune into another program.

The AF function can also be used to activate and deactivate the regional function.

At some times of the day, larger radio stati- ons split up their main program into regional program versions offering local information. If you want the radio to lock onto a regional program,

hold down the AF button for about 2 seconds.

The display will show “REG ON”.

If you leave the service area of the regional station tuned in, or if you wish to use the entire RDS service again, switch to “REG OFF”.

Hold down the AF button for about 2 seconds until “REG OFF” is displayed.

If “REG ON” is activated, the display will show “REG ON” each time the radio is swit- ched on.

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Blaupunkt RD 104 operating instructions Radio operation with RDS Radio Data System, AF alternative frequency