Contemporary Research
8
232-FMA FM Stereo Tuner
General RS-232 Commands
TT=
Select tuned frequency
Example: ‘>TT=94.5
87.7-108.0
Selects preset 94.5, if currently stored as a Preset
TC= Force tuned frequency
Example: ‘>TC=101.9’
87.7-108.0
Selects preset 101.9 regardless of current Presets
TP
Set to previous preset
Accesses previously selected frequency
TU
Tune channel up
Example: ‘>3TU’
Selects next higher channel in stored Tune Ring
Bumps Unit#3 to next higher preset
TD
Tune preset down
Selects next lower preset.
T+
Tune frequency up
Selects next higher frequency (depends on S0 setting).
T-
Tune frequency down
Example: >T-
Selects next higher frequency (depends on S0 setting)
Bumps frequency down one step (200 or 100 KHz).
TS= Set Preset
Example: >TS=1
Set current frequency as Preset 0 – 9
Sets current tuned frequency as Preset 1
TG= Recall Preset
Recall preset by number 0 – 9
T!
Delete Presets
Deletes all presets
XT
Toggle Mute A/V
Alternates Mute A/V on and off
XX
Mute A/V off
Turn A/V outputs on at previous level
XM
Mute A/V on
Example: ‘>XM’
Mutes A/V outputs
Mutes audio and video outputs
VX
Volume Mute off
Restores audio volume to previous level
VV
Stop volume ramp
Stops volume ramping
VT
Toggle Volume Mute
Alternates audio mute on and off
VM
Volume Mute on
Example: ‘>VM’
Turns off audio outputs
Mutes audio outputs
S0= Set tune mode
0=Odd frequencies only (200KHz steps - U.S. - default)
1=Even and odd frequencies (100 KHz steps - international)
S4= Set front panel lockout mode
0=None
1=Preset
2=Seek
3=Preset & Seek
4=Mute A/V
5=Preset &Mute A/V
6=Seek & Mute A/V
7=All
S5= Power-up volume
0=restore to previous level
1-63= Restore to preset volume level (1 min, 63 max)
S7= Set audio mode
Example: >S7=2
0=Mono/Local
1=Stereo/Local (default)
2=Mono/DX
3=Stereo/DX
Sets audio mode to mono/DX
ST
Request Channel status
Example: ‘>ST’
Unit sends “T” Frequency/Source status string
Returns Frequecy/Source status response string
SV
Request A/V status
Unit sends “V” Audio status string
SS
Request Front Panel status
Unit sends “S” Front Panel status string
Preset frequencies act similar to a video tuner Tune Ring, after the last preset is selected (Preset 9), the next
Preset Up command will start at the lowest Preset (0). While the 232-FMA has only audio outputs at present,
we have kept the Mute A/V commands to be consistent with programming and operation for the 232-STA and
232-MTA TV Tuners.
