Slice Commands

Slice commands control receiver slices in the FlexRadio. Each slice represents an independent receiver that can be tuned to different frequencies and configured with different parameters.

Warning

This has been generated by AI and accuracy is not guaranteed.

Command Index

Command Index

SLICE CREATE

Create a new slice receiver.

C[D]<seq_number>|slice create [freq=<MHz>][pan=<streamID>][rxant=<antenna_port>][mode=<mode>][load_from=<source>][clone_slice=<index>]

Parameters:

<MHz> = frequency in MHz, up to 15 significant digits
<streamID> = stream identification for panadapter association
<antenna_port> = antenna designator: ANT1, ANT2, RXA, RXB, or XVTR
<mode> = alphanumeric mode designator: USB, LSB, CW, AM, FM, etc.
<source> = PERSISTENCE or clone
<index> = slice index to clone from

Example:

C21|slice create freq=14.230 pan=0x40000000 rxant=ANT1 mode=USB

Response:

R21|0|2|slice created on 14.230000 MHz on ANT1    (success - slice index 2)
R21|50000001||Unable to create slice               (error - no receivers available)

Response Codes:

Hex Code	Meaning
00000000	Success - slice receiver created
50000001	Unable to get foundation receiver assignment
50000003	License check failed, cannot create slice receiver
50000004	Slice parameter error
50000005	The number or type of parameters supplied is incorrect
50000016	Malformed command
5000002C	Incorrect number of parameters
50000032	Bad mode

SLICE CREATE (Clone)

Create a cloned slice from an existing slice.

C[D]<seq_number>|slice create clone_slice=<slice_index> pan=<streamID> load_from=clone

Parameters:

<slice_index> = index of the slice to clone
<streamID> = stream identification for panadapter association

Example:

C22|slice create clone_slice=0 pan=0x40000001 load_from=clone

Response:

R22|0|3|cloned slice created                       (success - slice index 3)
R22|50000004||Invalid source slice                 (error - source slice doesn't exist)

SLICE LOCK

Lock a slice frequency to prevent tuning changes.

C[D]<seq_number>|slice lock <slice_index>

Parameters:

<slice_index> = slice number to lock

Example:

C23|slice lock 0

Response:

R23|0||                                          (success - slice locked)

SLICE M

Create a slice at a specific frequency on a panadapter.

C[D]<seq_number>|slice m <frequency> pan=<stream_id>

Parameters:

<frequency> = frequency in MHz
<stream_id> = panadapter stream ID

Example:

C23a|slice m 14.230 pan=0x40000000

Response:

R23a|0|2|                                        (success - slice index 2)

SLICE REMOVE

Remove a slice receiver.

C[D]<seq_number>|slice remove <slice_index>

Parameters:

<slice_index> = slice number to remove

Example:

C24|slice remove 0

Response:

R24|0||                                          (success - slice removed)
R24|50000014||Slice not found                    (error - slice doesn't exist)

Response Codes:

Hex Code	Meaning
00000000	Success - slice receiver deleted
50000005	The number or type of parameters supplied is incorrect
534C9999	The slice number provided is invalid

SLICE SET

Configure various slice parameters. All set commands follow the pattern:

C[D]<seq_number>|slice set <slice_index> <parameter>=<value>

Available Parameters:

Parameter	Value Range	Description
`active`	`0\|1`	Set slice as active slice
`agc_mode`	`off\|slow\|med\|fast`	Set AGC mode
`agc_off_level`	`0-100`	Set AGC off level
`agc_threshold`	`0-100`	Set AGC threshold
`anf`	`0\|1`	Enable/disable auto notch filter
`anf_level`	`0-100`	Set auto notch filter level
`anft`	`0\|1`	Enable/disable ANFT
`apf`	`0\|1`	Enable/disable auto peak filter
`apf_level`	`0-100`	Set auto peak filter level
`audio_level`	`0-100`	Set slice audio level
`audio_mute`	`0\|1`	Mute/unmute slice audio
`audio_pan`	`0-100`	Set audio pan position (50=center)
`dax`	`channel`	Set DAX channel assignment
`dfm_pre_de_emphasis`	`0\|1`	Set DFM pre/de-emphasis
`digl_offset`	`Hz`	Set DIGL offset frequency
`digu_offset`	`Hz`	Set DIGU offset frequency
`diversity`	`0\|1`	Enable/disable diversity reception
`fm_deviation`	`Hz`	Set FM deviation
`fm_repeater_offset_freq`	`MHz`	Set FM repeater offset frequency
`fm_tone_burst`	`0\|1`	Enable/disable FM 1750Hz tone burst
`fm_tone_mode`	`off\|ctcss_tx`	Set FM tone mode
`fm_tone_value`	`tone_freq`	Set FM tone value
`lms_anf`	`0\|1`	Enable/disable LMS Auto Notch Filter
`lms_anf_level`	`0-100`	Set LMS ANF level
`lms_nr`	`0\|1`	Enable/disable LMS Noise Reduction
`lms_nr_level`	`0-100`	Set LMS NR level
`loopa`	`0\|1`	Enable/disable loop A
`loopb`	`0\|1`	Enable/disable loop B
`mode`	`USB\|LSB\|CW\|AM\|FM\|DIGU\|DIGL\|SAM\|DSB`	Set slice demodulation mode
`nb`	`0\|1`	Enable/disable noise blanker
`nb_level`	`0-100`	Set noise blanker level
`nr`	`0\|1`	Enable/disable noise reduction
`nr_level`	`0-100`	Set noise reduction level
`nrf`	`0\|1`	Enable/disable NRF
`nrf_level`	`0-100`	Set NRF level
`play`	`0\|1`	Control audio playback
`record`	`0\|1`	Control audio recording
`repeater_offset_dir`	`simplex\|up\|down`	Set repeater offset direction
`rfgain`	`value`	OBSOLETE - Use `display pan set <stream_id> rfgain=<value>` instead
`rit_freq`	`-99999 to 99999`	Set RIT frequency offset in Hz
`rit_on`	`0\|1`	Enable/disable RIT
`rnnoise`	`0\|1`	Enable/disable RNNoise
`rtty_mark`	`Hz`	Set RTTY mark frequency
`rtty_shift`	`Hz`	Set RTTY shift frequency
`rxant`	`ANT1\|ANT2\|RXA\|RXB\|XVTR`	Set receive antenna
`speex_nr`	`0\|1`	Enable/disable Speex Noise Reduction
`speex_nr_level`	`0-100`	Set Speex NR level
`squelch`	`0\|1`	Enable/disable squelch
`squelch_level`	`0-100`	Set squelch level
`step`	`Hz`	Set tuning step size
`step_list`	`step1,step2,step3,...`	Set tuning step list
`tx`	`0\|1`	Set slice as transmit slice
`tx_offset_freq`	`MHz`	Set transmit offset frequency
`txant`	`ANT1\|ANT2\|XVTR`	Set transmit antenna
`wnb`	`0\|1`	Enable/disable wideband noise blanker
`wnb_level`	`0-100`	Set wideband noise blanker level
`xit_freq`	`-99999 to 99999`	Set XIT frequency offset in Hz
`xit_on`	`0\|1`	Enable/disable XIT

Examples:

C25|slice set 0 active=1
C26|slice set 0 mode=USB
C27|slice set 0 audio_level=75
C28|slice set 0 agc_mode=fast
C29|slice set 0 rxant=ANT1
C30|slice set 0 nb=1 nb_level=50
C31|slice set 0 lms_nr=1 lms_nr_level=75
C32|slice set 0 rnnoise=1

Notes:

Noise Reduction: Multiple noise reduction types available:
- nr / nr_level - Standard noise reduction
- lms_nr / lms_nr_level - LMS (Least Mean Squares) legacy noise reduction
- rnnoise - AI-based RNNoise algorithm
- nrf / nrf_level - Noise Reduction with Filter
- speex_nr / speex_nr_level - Speex noise reduction
Noise Blanker: Use nb to enable and nb_level to set the threshold (0-100)
Auto Notch Filter: Multiple ANF types:
- anf / anf_level - Standard auto notch filter
- anft - FFT-based auto notch filter
- lms_anf / lms_anf_level - LMS legacy auto notch filter
OBSOLETE: rfgain parameter is obsolete - use Display Pan commands instead
Filter Control: For filter bandwidth control, see Filter Commands (filt command)

Response Codes:

Hex Code	Meaning
00000000	Success - update successful
5000000F	Invalid DSP process (the process you attempted to set is not in this signal chain)
50000016	Malformed command
5000002D	Bad field
5000002F	Unimplemented mode (mode recognized, but not yet implemented)
50000030	Signal chain error - likely bad mode
50000032	Unrecognized mode (string)
50000033	Parameter out of range

SLICE TUNE

Tune a slice to a specific frequency.

C[D]<seq_number>|slice tune <slice_index> <freq> [autopan=<0|1>]

Parameters:

<slice_index> = slice number to tune
<freq> = frequency in MHz
autopan = optional parameter to control automatic panadapter panning (default=0)

Example:

C25|slice tune 0 14.230000 autopan=0

Response:

R25|0|14.230000|                                  (success - actual frequency set)
R25|50000004||Invalid frequency                   (error - frequency out of range)

Response Codes:

Hex Code	Meaning
00000000	Success - slice tuned successfully
50000005	The number or type of parameters supplied is incorrect
5000000C	The frequency requested is out of range
5000000D	Invalid slice receiver number
5000001D	Insufficient resources to tune to that frequency (requires new minimixer, not available)
534C9999	The slice number provided is invalid

SLICE AUTO_TUNE

Automatically tune a slice.

C[D]<seq_number>|slice auto_tune <slice_index> [int=<0|1>]

Parameters:

<slice_index> = slice number to auto-tune
int = optional intermittent flag (0=continuous, 1=intermittent)

Example:

C25a|slice auto_tune 0 int=0

Response:

R25a|0||                                          (success - auto-tune started)

SLICE WAVEFORM_CMD

Send a waveform command to a slice.

C[D]<seq_number>|slice waveform_cmd <slice_index> <command>

Parameters:

<slice_index> = slice number
<command> = waveform command to send

Example:

C25b|slice waveform_cmd 0 <command_here>

Response:

R25b|0||                                          (success - command sent)

Note

More information needed on valid waveform commands.

SLICE UNLOCK

Unlock a slice frequency to allow tuning changes.

C[D]<seq_number>|slice unlock <slice_index>

Parameters:

<slice_index> = slice number to unlock

Example:

C26|slice unlock 0

Slice Commands

Command Index

SLICE CREATE

SLICE CREATE (Clone)

SLICE LOCK

SLICE M

SLICE REMOVE

SLICE SET

SLICE TUNE

SLICE AUTO_TUNE

SLICE WAVEFORM_CMD

SLICE UNLOCK

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