Mitsubishi Lancer Evolution Owner's Manual page 215

For pleasant driving
Radio data system (RDS)
1- PWR (On-Off) switch
2- AM/FM (FM/MW/LW selection) button
5
3- Memory select buttons
4- TP (Traffic program) button
5- PTY (Program type) button
6- TUNE switch
7- SEEK (Up-seek) button
RDS uses PI (program identification) signal and AF (alternative frequency) list transmitted in addition to the normal FM broadcasting programmes, and picks up
the FM stations that are transmitting the same program from the AF list and automatically tunes to the station with the strongest signal intensity.
Therefore, you can continue listening to one program in, for example, a long distance driving without retuning to the other station transmitting the same program
when you are leaving the service area of the currently receiving station.
The RDS radio also features the limited reception of the program types, the break-in reception of the traffic announcement to the EON (enhanced other network)
and emergency broadcast, and the limited/unlimited reception of the regional programmes.
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8- SEEK (Down-seek) button
9- CT (Clock time) indicator
10- RDS (Radio data system) indicator
11- TP (Traffic program identification) indicator
12- PTY (Program type) indicator
13- REG (Regional program) indicator
14- Display
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