Commands

Updated on Mar 4, 2026

 See subsections for detailed explanation of each command.

CommandFunction
PLAYPlay or query file. User can add FROM and FOR options to define start position as number of seconds into the file and also duration of replay in seconds.
REC (Record)Record or query file. User can add FOR option to define duration of record in seconds.
ATTN (Attenuation)Set output attenuation. Attenuation level in dB.
MUTEMute all channels.
CONF (Configuration)Used to configure menu options and read current user configurations.
TYPEReturn All text from ‘About’ menu e.g. SN, and unit type.
MEDIAMedia storage functions. Used to swap between SD card and USB drive. List files on media and change directories.
NOISESet output additional noise level where opt channel.Level is in % 0 to 100
HELPDisplay List of commands for current Level. E.g.; Just HELP: will list all top level commands. HELP:PLAY: will list the PLAY commands.
MON (Monitor)Monitor functions such as request levels, switch, raw NMEA output.
FINDBeep and flash display. E.g. to identify single unit among multiple units. Backlight should Flash 500  on then 500 ms off and beep 500 ms on /500 ms off for total of 5 seconds.
Note: For all commands except LIST, inserting a ‘?’ character in place of a setting value will cause the unit to respond with the data. EG; PLAY:? will return of current file if playing else ERR.

Tip
 

<CR> means carriage return which is the ASCII character 0x0D or char(13) but not the individual characters ‘<’ ‘C’ ‘R’ ‘>’

If manually typing commands in a Telnet terminal, <CR> simply means pressing the ENTER key
 

4 (1)
SpecificationCommand
Replay file from start to endPLAY:FILE:name
Replay file from start point for defined durationPLAY:FILE:name:FOR:duration
Replay file from a selected time to the endPLAY:FILE:name:FROM:time
Replay file from a selected time for a defined durationPLAY:FILE:name:FROM:time:FOR:duration
Stop replayingPLAY:STOP
Query the replay status (name & current duration)PLAY:?

Please note: Time and Duration in the commands above should be entered in seconds format.

SpecificationCommand
Record with a default file nameREC
Record with a user defined file nameREC:FILE:name
Record with a default file name for a set durationREC:FOR:duration
Record with a user defined file name for a set durationREC:FILE:name:FOR:duration
Stop recordingREC:STOP
Query the record status (name & current duration)REC:?

Please note: Duration in the commands above should be entered in seconds format.

SpecificationCommand
Add attenuation on replay (all signals being replayed)ATTN:value
Query the attenuation settingATTN:?
SpecificationCommand
Mute all satellite constellationsMUTE:Y
Unmute all satellite constellationsMUTE:N
Mute a specific satellite channel (or two for triple)MUTE:Y,constellation,constellation
Unmute a specific satellite channel (or two for triple)MUTE:N,constellation,constellation
SpecificationCommand
Enable live NMEA streamMON:NMEA:ON
Disable live NMEA streamMON:NMEA:OFF
Request CNOMON:SAT
Request time, height, lat & longMON:LOC
SpecificationCommand
Set additional output noise level on all constellationsNOISE:value
Query the noise settingNOISE:?
SpecificationCommand
Enable scenarios to be replayed continuouslyCONF:PLAY:LOOP:Y
Disable continuous replayCONF:PLAY:LOOP:N
Create a pause between each replayCONF:PLAY:PAUSE:duration
Time all replays will begin from (seconds)CONF:PLAY:FROM:time
Length of time all replays will play for (seconds)CONF:PLAY:FOR:duration
Length of time all recordings will record for (seconds)CONF:RECORD:FOR:duration
Setting single constellationCONF:CONS:constellation
Setting dual constellationCONF:CONS:constellation1,constellation2
Setting triple constellationCONF:CONS:constellation1,constellation2_constellation3
Setting a constellation to 2bitCONF:CONS:constellation,2bit
Changing the display contrastCONF:SETUP:DISP:CONT:value
Changing the display brightnessCONF:SETUP:DISP:BRIG:value
Enabling power save modeCONF:SETUP:PSAV:Y
Disabling power save modeCONF:SETUP:PSAV:N
Enable external reference clockCONF:SETUP:EXT:Y
Disable external reference clockCONF:SETUP:EXT:N
Enable the OCXO *CONF:SETUP:EXT:OCXO
Enabling UTC timeCONF:SETUP:TIME:UTC:Y
Disabling UTC timeCONF:SETUP:TIME:UTC:N
Manually setting time(UTC time must be disabled prior to issuing)CONF:SETUP:TIME:MAN:yy:mm:dd:hh:mm:ss
Enabling digital channel  1CONF:SETUP:DIGI:CH1:function
Enabling digital channel  2CONF:SETUP:DIGI:CH2:function
Disabling digital channel  1CONF:SETUP:DIGI:CH1:OFF
Disabling digital channel  2CONF:SETUP:DIGI:CH2:OFF
Enabling digitized CAN recordingCONF:SETUP:CAN:DIGI
Enabling arbitrated CAN recordingCONF:SETUP:CAN:FILE
Setting the baud rate on channel 1CONF:SETUP:CAN:CH1:BAUD:value
Setting the baud rate on channel 2CONF:SETUP:CAN:CH2:BAUD:value
Enabling/disabling silent record on channel 1CONF:SETUP:CAN:CH1:SILENT:Y/N
Enabling/disabling silent record on channel 2CONF:SETUP:CAN:CH2:SILENT:Y/N
Returns the units configurationCONF:?

*The LabSat 3 in use must be fitted with the OCXO feature for this function to be enabled

SpecificationCommand
Show all files on the mediaMEDIA:LIST
Switch which media is being usedMEDIA:SELECT:media
Open a directory (cannot skip folders)MEDIA:CHDIR:directory
Go back one directoryMEDIA:CHDIR:..
Go back to root of the mediaMEDIA:CHDIR:\
Query which media is in useMEDIA:?
Delete a fileMEDIA:DELETE:file

The help keyword is used to display the currently available commands for each level of the tree.

For example, HELP<CR> will return:-
 

Product Name    : RLL03-2

Product Version : 01.05 Build 1033
 

Current commands are:
 

help

?

ATTN

CONF

FIND

MEDIA

MON

MUTE

NOISE

PLAY

REC

TYPE
 

To find out what subcommands are available under the configuration (CONF), send HELP:CONF<CR> which will show:-
 

CONS

PLAY

SETUP

?
 

Then to list SETUP options, send HELP:CONF:SETUP<CR> which would give:-
 

DISP

PSAV

EXT

TIME

DIGI

CAN