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Radio station
Request radio station label (DAB/RDS)
Example
Command/response sequence to request station label, where the new station is called "DAB
STATION 2":
0x21 0x01 0xDE 0x01 0xF0 0x0D
Command:
0x21 0x01 0xDE 0x01 0x0D 0x44 0x41 0x42 0x20 0x53 0x54 0x41
Response:
0x54 0x49 0x4F 0x4E 0x20 0x32 0x0D
Radio station information
Request information on the current radio station.
Example
Command/response sequence to request the station frequency, where the source is AM and the
frequency is 1089kHz:
0x21 0x01 0xDF 0x02 0xF0 0x00 0x0D
Command:
0x21 0x01 0xDF 0x01 0x02 0x04 0x41 0x0D
Response:
Example
Command/response sequence to request the station frequency, where the source is FM and the
frequency is 105.2MHz:
0x21 0x01 0xDF 0x02 0xF0 0x00 0x0D
Command:
0x21 0x01 0xDF 0x01 0x02 0x69 0x32 0x0D
Response:
Example
Command/response sequence to request the signal strength, where the current signal strength
is 10:
0x21 0x01 0xDF 0x02 0xF0 0x01 0x0D
Command:
0x21 0x01 0xDF 0x01 0x02 0x0A 0x00 0x0D
Response:
RS232
Arcam (A&R Cambridge Ltd), Pembroke Avenue, Waterbeach, CAMBRIDGE, CB25 9QR, England
(solo movie)
8
+44 (0)1223 203200 www.arcam.co.uk/extranet
Byte:
Description:
ZN
0x01 (Zone)
CC
0xDE (Command code)
NB
0x01 (Number of bytes)
DATA
0xF0 = Request the current DAB station
RESPONSE
Byte:
Description:
ZN
0x01 (Zone)
RC
0xDE (Reply Code)
AC
0x01 (Answer code)
NB
(Number of bytes)
Dn
Response:
The service label of the new radio
station, in ASCII characters
Byte:
Description:
ZN
0x01 (Zone)
CC
0xDF (Command code)
NB
0x02 (Number of bytes)
D1
0xF0 = Request station information
D2
If the current source is FM/AM:
0x00 = Request the station frequency
0x01 = Request the station signal
strength
If the current source is DAB:
0x01 = Request the station signal
strength
0x02 = Request the station MPEG mode
0x04 = Request the station data rate
RESPONSE
Byte:
Description:
RC
0xDF (Reply Code)
AC
0xDF (Answer code)
NB
0x03 (Number of bytes)
D1
0x00 = Message contains station freq.
0x01 = Message contains signal
strength
0x02 = Message contains MPEG mode
0x04 = Message contains data rate
D2
Response to the AM frequency request:
MSB of current frequency
Response to the FM frequency request:
MHz of current frequency
Response to the DAB MPEG mode
request:
0x00 = Stereo
0x01 = Joint stereo
0x02 = Dual mono
0x03 = Mono
Response to the DAB data rate request:
0x00 - 0xC0 (0 - 192kb/s) = data rate
Response to the signal strength
request:
0x00 - 0x10 = signal strength
D3
Response to the AM frequency request:
LSB of current frequency
Response to the FM frequency request:
kHz/10 of current frequency
Response to the DAB MPEG mode
request:
0x00
Response to the DAB data rate request:
0x00
Response to the signal strength
request:
0x00