DP Audio Video DP351X User Manual page 10

Remote Control
AF(Alternative Frequency)
Turn on "AF",the unit will switch to the stronger signal of the
same station automatically.
TA(Traffic announcement)
Turn on "TA ", the unit will prior to seek the traffic information. If
the machine receives the traffic information, it will choose this
signal and quit other radio signal or CD program. If press TA
again, other program will recover and the traffic information
program will quit.
PTY(Program type)
Turn on "PTY ", then press "PTY"and 1-6 buttons to choose
one certain program style . After this, the unit will scan the
same style programs automatically. Such as select News
programs. The unit will only scan News programs.
Among AF, TA and PTY, TA has the absolute priority to be chosen.
Note: This unit doesn't have RDS function, AF/TA/PTY neither.
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