Itel DPRO3, User Manual

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37 Programmming software
© 2016 ITEL Elettronica e Telecominicazioni Snc
3.3.4 AF Lists window
The RDS encoder allows for method "A" or "B" for alternative frequencies coding.
The choice between the two methods depends on the structure of the network and the number of
alternative frequencies.
There is no flag which indicates if the alternative frequencies are transmitted by method "A" or "B":
the difference between the two methods is encoded in the way the frequencies are disposed into the
list.
Notes:
It is not possible to compile different lists using the A and B simultaneously.
“A” method should be used only when the network has a maximum of 25 frequencies and does not
differentiate regional programming.
“B” method is used when the alternative frequencies are more than 25 or when, within the same
network , there is a program differentiation, such as local news or advertising, only on certain
frequencies.
The lists must be compiled starting from the first and should be filled leaving no empty lists in
between: any empty list will be automatically removed upon coder programming.