VS300 Operations and Maintenance Manual
Operating the transmitter
Page 2-68
Issue 8.0 2016-03-01
RDS Remote Protocol.
The following information is intended to assist users with remote RDS
settings using the ASCII protocol.
Assigning Settings:
To assign a value to a setting, send the setting name, the equal sign (=) and the
desired value. If the setting is valid, the exciter responds “OK”. If the setting is invalid, the exciter
responds “NO”.
Examples: PI=1248 //set the PI code to 0x1248
OK // exciter responds with OK
TA=2 // set the traffic announcement to 2 (bad command; only values 0 or 1 allowed)
NO // exciter responds with NO
Querying Settings:
To determine the current value of a setting, type the setting name with a
question mark (?) instead of an equal sign (=).
Examples: PI? //query the current PI code
1248 // exciter responds with “1248”, the current PI code
Other Considerations:
Initial Values and Preset Changes
On startup, or when the RDS settings in the active preset differ from the last ones loaded, the preset’s
initial RDS settings (PS, PI, PTY, PTYN, RT, AF, etc.) will be loaded. If there is an active data source
(UECP or ASCII via serial or IP), these settings may be updated externally.
The RDS settings from the preset will only be loaded again if they change, otherwise the working set
from the external data source will continue to be used. This allows unrelated preset changes to adjust
other settings without affecting RDS functionality.
Real Time Clock
The exciter/control PWB has a battery-backed real-time clock that keeps track of the time and date.
It is possible the exciter's RDS generator could broadcast the incorrect time and date if this is not set
correctly, so the broadcast of time must be enabled via ASCII or UECP each time the system is
powered up. Until it is enabled, the time will not be broadcast again after a power failure.
Summary of Contents for VS300
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