Les postes autoradio

Les postes autoradio
27/03/2006

Les différents postes autoradio Double DIN montés en série dans la Ford Cougar

 

5000 RDS :

RDS 5000

Fonction : PI, PS, AF, TP, TA, CT, PTY, PTY31, PIN, EON, EONTA, EONPTY

 

6000 RDS :

 RDS 6000

Fonction : PI, PS, AF, TP, TA, CT, PTY, PTY31, PIN, EON, EONTA, EONPTY

 

7000 RDS :

 RDS 7000

PI, PS, AF, TP, TA, CT, PTY, PTY31, PIN, EON, EONTA, EONPTY

 

 

Glossary of Terms : (http://www.rds.org.uk/rdsfglossary.htm#PI)


PI - Programme Identification
This information consists of a code enabling the receiver to distinguish between countries, areas in which the same programme is transmitted, and the identification of the programme itself. The code is not intended for direct display and is assigned to each individual radio programme, to enable it to be distinguished from all other programmes. One important application of this information would be to enable the receiver to search automatically for an alternative frequency in case of bad reception of the programme to which the receiver is tuned; the criteria for the change-over to the new frequency would be the presence of a better signal having the same Programme Identification code.

PS - Programme Service name
This is the label of the programme service consisting of not more than eight alphanumeric characters which is displayed by RDS receivers in order to inform the listener what programme service is being broadcast by the station to which the receiver is tuned. An example for a name is "Radio 21". The Programme Service name is not intended to be used for automatic search tuning and must not be used for giving sequential information.

AF - Alternative Frequencies list
The list(s) of alternative frequencies give information on the various transmitters broadcasting the same programme in the same or adjacent reception areas, and enable receivers equipped with a memory to store the list(s), to reduce the time for switching to another transmitter. This facility is particularly useful in the case of car and portable radios.

TP - Traffic Programme identification
This is a flag to indicate that the tuned programme carries traffic announcements. The TP flag must only be set on programmes which dynamically switch on the TA identification during traffic announcements. The signal shall be taken into account during automatic search tuning.

TA - Traffic announcement identification
This is an on/off switching signal to indicate when a traffic announcement is on air. The signal could be used in receivers to:

switch automatically from any audio mode to the traffic announcement;

switch on the traffic announcement automatically when the receiver is in a waiting reception mode and the audio signal is muted; switch from a programme to another one carrying a traffic announcement, according to possibilities available through EON. After the end of the traffic announcement the initial operating mode will be restored

CT - Clock Time and date
Time and date codes should use Coordinated Universal Time (UTC) and Modified Julian Day (MJD). If MJD = 0 the receiver should not be updated. The listener, however, will not use this information directly and the conversion to local time and date will be made in the receiver's circuitry. CT is used as time stamp by various RDS applications and thus it must be accurate.

PTY - Programme TYpe
This is an identification number to be transmitted with each programme item and which is intended to specify the current Programme Type within 31 possibilities. This code could be used for search tuning. The code will, moreover, enable suitable receivers and recorders to be pre-set to respond only to programme items of the desired type. The last number, i.e. 31, is reserved for an alarm identification which is intended to switch on the audio signal when a receiver is operated in a waiting reception mode.

PIN - Programme Item Number
The code should enable receivers and recorders designed to make use of this feature to respond to the particular programme item(s) that the user has preselected. Use is made of the scheduled programme time, to which is added the day of the month in order to avoid ambiguity.

EON - Enhanced Other Networks information
This feature can be used to update the information stored in a receiver about programme services other than the one received. Alternative frequencies, the PS name, Traffic Programme and TrafficAnnouncement identification as well as Programme Type and Programme Item Number information can be transmitted for each other service. The relation to the corresponding programme is established by means of the relevant Programme Identification. Linkage information, consisting of four data elements, provides the means by which several programme services may be treated by the receiver as a single service during times a common programme is carried. Linkage information also provides a mechanism to signal an extended set of related services.



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