Nautel GV3.5, Operation & Maintenance Manual, Page: 87 / 251

GV5/GV3.5 OPERATIONS & MAINTENANCE MANUAL OPERATING THE TRANSMITTER
PAGE 3.2.70 VERSION 0.2 2014-07-23
 Radio Text: Most RDS radios can receive short messages that may include information about
the presenter, station or program you are listening to. (e.g., a web address for the station).
You can enter a radio text up to 64 characters scroll. This selection applies to internal data
sources only.
 PTY: this coding of up to 31 pre-defined programme types allows users to find similar
programming by genre. This selection applies to internal data sources only.
 PTYN (programme type name): this field can be used for detailed description of the PTY by 8
digits. Example: if the PTY is 4 (Sport) a PTYN like "Cycling" could be transmitted. The PTYN is
intended for displaying additional information only and cannot be used for automatic station
tuning like the PTY. The PTYN is optional and not obligatory. This selection applies to internal
data sources only.
 Music/Speech: select Music or Speech. This selection applies to internal data sources only.
 Traffic Info: select None, TA (Traffic Announcement), TP (Traffic Programme) or TA+TP. The
receiver can often be set to pay special attention to this flag and, for example, stop the tape/
pause the CD or retune to receive a traffic bulletin. The TP flag is used to allow the user to find
only those stations that regularly broadcast traffic bulletins whereas the TA flag is used to
signal an actual traffic bulletin in progress. This selection applies to internal data sources only.
 Alternate Frequencies: select None or 1 through 6. This allows a receiver to re-tune to a
different frequency providing the same station information when the first signal becomes too
weak. This is often utilized in car stereo systems. This selection applies to internal data
sources only.
 Artificial Head: select Yes or No. This selection is a decoder identification operating mode flag.
 Compression Flag: select Yes or No. This selection is a decoder identification operating mode
flag.
 Dynamic: select Yes or No. This selection is a decoder identification operating mode flag.
 Stereo: select Yes or No. This selection is a decoder identification operating mode flag.
NOTE
:
Artificial Head, Compression Flag, Dynamic and Stereo are part of the DI (Decoder Information)
data (see Controller UI editing screens on
Figure 3.2.70 on page 3.2.89
). RDS Data is provided as a
single-digit hex input between 0 and F, that encodes the flags for the four settings as a 4-bit code. For
example: hex number 3 is bit-repesented by 0011, from bit 3 on the left to bit 0 on the right. This
number is decoded to mean Stereo = Yes (bit 0=1), Artificial Head = Yes (bit 1=1), Compression = No
(bit 2=0) and Dynamic = No (bit 3=0).