Music / speech : If a musical emission is in course of transmission, the value "1" is set (default value if unused function), otherwise the value "0" indicate a speech broadcasting.

Decoder Information:

This bit allow to indicate to the receiver the type of transmission used, associated to 2 bits C1/C0 it is possible to transmit 4 bits data:

Select of transmitted characters:

These 2 bits allow to select character of transmitted name (PS Name) as well as DI information according to the following figure:

Alternative Frequency :

AF 1                AF 0

This word of 16bits allows to transmit alternative frequencies. These frequencies allow the receiver to switch to another transmitter diffusing the same radio in case of bad reception.

This function is very useful for a radio car because it allow to know quickly the other near transmitters and so to commute quickly when car moving .

The frequency is coded by step of 100KHz from 87.6MHz, a list of frequencies must be always preceded by the consequentive number of the list (from 1 to 25 frequencies)

The following figure gives the meaning

PS 1                PS 0

This 16 bits word allows to transmit 2 characters of radio name PS Name .

The bit C1/C0 allows to select the transmitted characters