Operations and Maintenance Manual

Table Of Contents
VS300 Operations and Maintenance Manual Operating the transmitter
Page 2-70 Issue 10.0 2019-01-18
AF1=
...
AF25=
Alternative
Frequency
If the station broadcasts on more than one frequency using translators or
repeaters, these are typically set to each of the frequencies used in the
broadcast network.
Sample calculation for 98.5 MHz: (98.5-87.8) x 10 = 107
Example: AF1=107
NOTE: there is no method to disable AFs in this protocol.
DI= Decoder
Information
Single hex digit, range 0-9 and A-F (case insensitive) that encodes the
flags Stereo(1)/Mono(0) - bit 0; Artificial Head (Yes=1, No=0) - Bit 1;
Compression (Yes=1, No=0) - Bit 2; and Dynamic (Yes=1, No=0) - Bit 3
Example: DI=3 (Stereo, Artifical Head=Yes, Compression=No,
Dynamic=No)
MS= Music/Speech Typically set to 1 if the station broadcasts music, otherwise set to 0.
Example: MS=1
TEXT= Radio Text Accepts a 1 through 64 character ASCII string, displayed on receivers that
support RDS radio text.
Example: TEXT=Tears for Fears - Shout (1985)
ECHO= Echo on/off If set to 1, the RDS encoder will echo back characters that are sent to it. If
set to 0, the encoder will only send responses.
Example: ECHO=1
DATE= Current UTC date Format is strictly YYYY-MM-DD. Sets the current UTC date for 4A date/
time broadcasts. This is a non-volatile setting.
Example: DATE=2016-04-04
TIME= Current UTC time Format is strictly HH:MM:SS, 24-hour format. Sets the current UTC time
for 4A date/time broadcasts. This is a non-volatile setting.
Example: TIME=17:23:05
Table 2.4: Supported ASCII Settings for RDS
Setting Name Description/Example