www.kvarta.net
15
/
36
15
RDS300/RDS500/RDS1000 User Manual 3.10
5.
ADVANCED FUNCTIONS
5.1.
BROADCASTING TRAFFIC DATA (TMC)*
The Traffic Management Channel (TMC) is a method of communicating real time traffic
information to vehicles equipped with the proper receivers to decode and display that data.
Prevalent in many European countries, TMC data can help drivers select the best routes on their
journey, advise motorists of slowdowns or accidents on the road ahead, and maximize efficient use
of a fleet of vehicles. The data streams and protocols used for TMC can vary somewhat, but one
constant is that TMC applications utilize the 8A group of RDS data. Frequently, the volume of TMC
data requires that it be split and broadcast in a number of different RDS groups to ensure delivery of
accurate data in a timely manner.
To enable broadcast of the 8A groups, go to the ‘configure RDS encoder’ page of the RDS
Encoders embedded website. Enter at least one 8A group in the ‘Group Sequence’ box near the
bottom of the page, and click ‘Save’ to save your changes.
For further information and support on TMC applications, contact us.
*Only RDS1000
5.2.
BROADCASTING OPEN DATA APPLICATIONS (ODA)*
The RDS Encoder encoder supports the broadcast of Open Data Applications in RDS. There are
several modes of ODA - FIFO, Cyclic, Burst mode, Spinning Wheel mode, Extremely urgent and
Immediate. These modes are specified in the RDS standard EN50067 and in the UECP protocol EBU-
UECP SPB490 version.
To configure an "ODA" application
An ODA application is defined by its AID code and by the type of group used, these two
parameters appear in the 3A groups used for service locating. The command
ODA.gv.AID=<aaaa>
can be used to define the AID code aaaa associated to the group type, gv=3A, 3B, 4B, 5A, 5B, 6A,
6B,7A, 7B, 8A, 8B, 9A, 9B, 10B, 11A, 11B, 12A, 12B, 13A or 13B.
The 3A type groups and the type of group used for the ODA application must be included in the
'group sequence' defined by the command
DSN(d).GS=<g1,g2,g2,…gn>
where d = 1 to 6 specifies the assigned DSN, n<=252 and g1,g2,..gn = 0A, 0B, 1A,…to 15A. (The values
4A, 14B and 15B are prohibited).
The broadcasting of the 3A type groups is managed, according to the type of group associated to an
AID code, by the parameter
SEQ3A=<U1,U2,…U16>
