With RDS enabled (AF, PTY are lit on the display) automatic search is carried out in accordance with the selected mode.
In AF mode, only a radio station that supports RDS is searched.
In PTY mode, it only searches for radio stations that support RDS and broadcast programs that match the type set by the user.
Therefore, in order to sequentially search for all available radio stations in the selected range, it is necessary to turn off the AF, PTY and TA modes with the corresponding buttons, i.e. AF, PTY and TA should not appear on the display.