C) Radio Mode - Renkforce RSD-1802 Operating Instructions Manual

RETUNE L/S
RETUNE L: When the radio does not receive traffic announcements any more, the auto-scan starts
90 seconds later.
RETUNE S: When the radio does not receive traffic announcements any more, the auto-scan starts
30 seconds later.
MASK DPI/ALL
Device reaction during channel search:
MASK DPI: Alternative frequencies with different programme information (PI) are not considered.
MASK ALL: Alternative frequencies with different programme information (PI) and alternative
frequencies with a high signal strength but without RDS information are not considered.

c) Radio Mode

Receiving concept RDS
The abbreviation RDS stands for Radio Data System, i.e. inaudible, additional information codes are trans-
mitted by the FM RDS station.
With the RSD-1802, you have a SD tuner that is able to evaluate these coded data that are transmitted by
most of the radio stations.
The following important data is transmitted:
- Program Identification (PI)
- Traffic Program (TP)
- Traffic Announcement (TA)
- Program Service (PS)
- Alternative Frequencies (AF)
- Program Type (PTY)
- EON Information (enhanced other networks)
- Clock time (CT)
Program Identification (PI)
This information helps the receiver to identify a station. It enables the radio to differentiate between areas
where the same programme is transmitted. The car radio only switches to a stronger station when the
reception grows weaker if the stronger station transmits the same programme identification.
Traffic Programme (TP)
This signal enables the receiver to detect that a station with a traffic programme is being received.
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