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5.4.3 TR2 trimmer adjustment
Note: When you receive the RDS encoder, the TR2 trimmer is set to the correct position. The user is not allowed
to touch the TR2. This trimmer affects the sensitivity to the pilot tone only. It does not affect any other function!
Preferred way: Disconnect pilot/MPX signal and set 19 kHz on marked pin on the PCB without the pilot tone present
(tolerance is ±100 Hz, exact value has no effect on right functioning).
Alternative way: Connect pilot/MPX signal and set the TR2 trimmer to the position where the LED2 is burning.
5.5 Setting Basic RDS Data
Before getting on-air with the RDS signal, you will need to decide on the settings to be used. The following RDS
services must be set as the first. Use the Windows control software and its GUI. For more experienced users or
those without a Windows PC, any terminal programme can be used (see chapter 10).
5.5.1 PI (Program Identification)
This is very important information that enables the receiver to distinguish between countries, areas in which the
same program is transmitted, and the identification of the program itself. The code is not intended for direct display
and is assigned to each individual radio program, to enable it to be distinguished from all other programs.
The PI code consists of four characters (hexadecimal numbers).
The first character identifies country:
0
Cannot be assigned.
8
PS, BG, LV, PT
1
DE, GR, MA, IE, MD
9
AL, DK, LI, LB, SI
2
DZ, CY, CZ, TR, EE
A
AT, GI, IS
3
AD, SM, PL, MK
B
HU, IQ, MC, HR
4
IL,CH, VA
C
MT, GB, LT
5
IT, JO, SK
D
DE, LY, YU
6
BE, FI, SY, UA
E
RO, ES, SE
7
RU, LU, TN, NL
F
E.G., FR, NO, BY, BA
The second character identifies program type in terms of area coverage:
0
Local
Local program transmitted via a single transmitter only during the
whole transmitting time.
1
International
The same program is also transmitted in other countries.
2
National
The same program is transmitted throughout the country.
3
Supra-regional
The same program is transmitted throughout a large part of the
country.
4 to F
Regional
The program is available only in one location or region over one or
more frequencies, and there exists no definition of its frontiers.
The third and fourth characters are used to clearly identify different stations within the area of coverage.
Important note: Meaning of some PI digits may be different for US RBDS.
Important note: If the station has only one transmitter, second PI digit must be zero (x0xx).
Important note: Factory default PI value is FFFF and it's needed to change it as soon as possible to avoid the
situation that two different stations with common area of coverage have the same PI. For each station in the same
location the unique PI must be assigned. Stations that carry different program must be unambiguously identified by
the last two PI digits. In other case they are recognized as one station by car radios, regardless of any other service
settings. If the broadcaster hasn't received the 4-digit PI from regulatory office, he must choose such number that is
not in conflict with other stations in the location.
