Nautel VS1, Operation And Maintenance Manual

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VS1 Operations and Maintenance Manual Operating the transmitter
Page 2-62 Issue 3.1 2013-10-01
– 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 "Football" 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.
– Alt. Frequencies: select None or 1 through 6. This allows a receiver to re-tune to a
different frequency providing the same station information (i.e., using translators or
repeaters) when the first signal becomes too weak. This is often utilized in car stereo
systems. This selection applies to internal data sources only.
– Music/Speech (select Music or Speech): Data input is set to 1 if the station broadcasts
music (e.g., MS=1), otherwise 0
– 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. set to
1 (e.g., TA=1) if the current program is currently broadcasting a traffic announcement,
set to 0 otherwise; TP is Traffic Program - set to 1 (e.g., TP=1) if the current program
occasionally carries traffic information, set to 0 otherwise. This selection applies to
internal data sources only.
– Artificial Head (select Yes or No): DI codebit 1 - Yes=1, No=0
– Compression Flag (select Yes or No): DI code bit 2 - Yes=1, No=0
– Dynamic (select Yes or No): DI code bit 3 - Yes=1, No (static)=0
– Stereo (select Yes or No): DI code bit 0 - Yes=1, No (mono)=0
Note:
Artificial Head, Compression Flag, Dynamic and Stereo are part of the DI (Decoder
Information) data (see UI editing screens on
Figure 2.65 on page 2-81 ). 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-represented 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).
Note:
Refer to FCC guidelines for allowable modulation depth with SCAs or RDS enabled.