Mitsubishi MOTORS Colt 2007 Owner's Manual page 249

RDS uses PI (program identification) signal and AF (alterna-
tive frequency) list transmitted in addition to the normal FM
broadcasting programs, and picks up the FM stations that are
transmitting the same program from the AF list and automati-
cally 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 pro-
gram types, the break-in reception of the traffic announcement
to the EON (enhanced other network) and emergency broad-
cast, and the limited/unlimited reception of the regional pro-
grams.
AF (Alternative Frequencies) function
The AF function finds a station broadcasting the same program
and selects the station with the strongest signal of AF lists.
The AF function is turned on (with the AF indicator (13)
shown on the display) at all times unless you manually switch
it off.
The AF function can be turned ON and OFF.
Refer to "Function setup mode" on page 5-38.
CT (Clock Time) function
The clock can be set automatically by using the signal from the
local RDS stations. Refer to "Digital clock" on page 3-16.
REG (Regional) function
REG function limits to receive the stations broadcasting
regional programs.
Regional programming and regional networks are organized
differently depending on the country or area (they may be
changed according to the hour, state, or broadcast area), so if
you don't want to receive the regional programs automatically,
you can set up REG ON not to receive regional programs.
The REG function can be turned ON and OFF.
Refer to "Function setup mode" on page 5-38.
PI (Program Identification) search function
When travelling long distance and the recalled preset station is
weak, the radio searches another frequency broadcasting the
E00720900032
same programming with the same PI code in AF list.
If there are no frequencies broadcasting the same program-
ming, the radio searches a frequency broadcasting the regional
programming. The radio succeeds in searching the regional
programming, then the display shows the REG indicator (10).
If the radio does not succeed in searching the regional pro-
gramming, the radio returns to the recalled preset station.
PTY (Program type)
RDS broadcasts are classified according to program type
E00721000014
(PTY) as follows. Use the TUNE/SEEK button (3 or 4) to
select your desired PTY.
For pleasant driving
E00721100015
E00721200032
5
E00721300105
5-33