Abort

Resets the trigger system. This has the effect of aborting the sweep or any measurement that is currently in progress.

Additionally, any pending operation flags that were set by initiation of the trigger system will be set to false.

If :INITiate:CONTinuous is OFF (i.e. the instrument is in single sweep mode), send the command :INITiate[:IMMediate] to trigger the next sweep.

If :INITiate:CONTinuous is ON (i.e. the instrument is in continuous sweep mode) a new sweep will start immediately.

Limit Comment

Associates a user-defined comment with each limit. The set version of this command takes a single parameter that is a string containing the desired comment. The query version returns the comment that is set.

If a limit of the specified number does not already exist, a default limit will be created first (having empty

data, with state set to ON).

<string>

1, Default = 1

1-10, Default = 1

Limit Control Data

This command sets or queries the control data (X-axis values) for the specified limit.

The numeric suffix on LIMit specifies which limit number to query or set data. If the suffix is omitted, the command will refer to limit 1.

If a limit of the specified number does not already exist, a default limit will be created first (having empty data, with state set to ON).

This command takes a list of one or more frequency values as parameters. For example, CALC:LIM1:CONT:DATA 1 MHz, 2MHz, 3MHz

Note that it is permitted to set one or more invalid 'placeholder' values of Not-A-Number (NAN). The placeholder value for NAN is 9.91e37. If a control data point contains a value of 9.91e37, limit line interpolation from the previous data point, and to the next data point, will not occur. This is useful for defining discontiguous (or segmented) limit lines within a single limit.

For example, to define a limit line of two discontiguous segments, one from 1 MHz to 10 MHz, and another from 20 MHz to 30 MHz, send the following control data: CALC:LIM1:CONT:DATA 1MHz, 10MHz, 9.91e37, 20MHz, 30MHz

Note that the upper (or lower) data, if used, should contain the same amount of points as the control data (see CALC:LIM:FAIL? for details on what happens when this is not true). Thus, when using placeholders in control data, it is recommended that placeholders are also used in the upper (or lower) data. For example, CALC:LIM1:CONT:UPP 0dBm, 10dBm, 9.91e37, 10dBm, 0dBm

The exact value for the middle point does not matter, as interpolation will always be skipped due to the control data containing NAN, but using NAN for the corresponding upper (or lower) data value will make it easier to remember that the point is a placeholder.

<numeric_value> {HZ | KHZ | MHZ | GHZ}, {<numeric_value> {HZ | KHZ | MHZ | GHZ}}, ...

1, Default = 1

1-10, Default = 1

Limit Control Mode

Choose either ABSolute or RELative limit.

In ABSolute mode, the control value of the limit line is defined by absolute physical values (Hz).

In RELative mode, the control value of the limit line is relative to the center frequency (Hz).

If a limit of the specified number does not already exist, a default limit will be created first (having empty

data, with state set to ON).

<ABSolute|RELative>

ABS|REL

1, Default = 1

1-10, Default = 1

ABSolute

Limit Control Shift

Move a limit line along the control axis. This command changes the value of :CALCulate<n>:LIMit<k>:CONTrol[:DATA].

Issuing this command multiple times will change the limits each time. For example, sending

CALC:LIM1:CONT:SHIFT 1 Hz

CALC:LIM1:CONT:SHIFT 1 Hz

CALC:LIM1:CONT:SHIFT 1 Hz

CALC:LIM1:CONT:SHIFT 1 Hz

CALC:LIM1:CONT:SHIFT 1 Hz

will shift the control axis by 5 Hz

If a limit of the specified number does not already exist, a default limit will be created first (having empty data, with state set to ON).

<numeric_value> {HZ | KHZ | MHZ | GHZ}

1, Default = 1

1-10, Default = 1

Limit Copy

Copies a limit line eg: CALC:LIM1:COPY 2 Copies limit 1 to line 2

If a limit of the specified number does not already exist, a default limit will be created first (having empty data, with state set to ON).

<numeric_value>

1, Default = 1

1-10, Default = 1

Limit Delete

Deletes a limit line

If a limit of the specified number does not already exist, a default limit will be created first (having empty data, with state set to ON).

1, Default = 1

1-10, Default = 1

Limit Fail

This command queries the result of a limit check.

All traces that have had checking enabled (via CALC:TRAC:CHEC) will be evaluated against the upper and lower data of the specified limit, unless the limit STATe is OFF (in which case this command will always return 0), or the upper or lower STATe is OFF (in which case only the data with STATe ON will be checked).

If the sweep has not completed yet, the partial trace will be evaluated. If INITiate:CONTinuous is ON, a snapshot of the trace at the time this command was received will be evaluated against the limit. This command returns 1 if any of the checked traces violate the limit, otherwise it returns 0.

When a limit is evaluated, there are some rules that are followed if the cardinality of the limits control, upper, and lower data are not equal. If there are fewer control data points than upper or lower data points, then only the first n upper or lower points will be evaluated, where n is the number of control points. If there are fewer upper or lower points than control points, then the effective number of upper or lower points will be increased to the number of control points, with the 'extrapolated' points having a value equal to the last upper or lower point.

If a limit of the specified number does not already exist, a default limit will be created first (having empty data, with state set to ON).

1, Default = 1

1-10, Default = 1

Lower Limit Data

This command sets or queries the lower limit data (Y-axis values) for the specified limit.

The numeric suffix on LIMit specifies which limit number to query or set data. If the suffix is omitted, the command will refer to limit 1.

If a limit of the specified number does not already exist, a default limit will be created first (having empty data, with state set to ON).

This command takes a list of one or more amplitude values as parameters. For example,

CALC:LIM1:LOW:DATA 1 dBm, 2dBm, 3 dBm

Note that it is permitted to set one or more data values of +/- infinity. The placeholder value for +/- infinity is +/-9.9e37. If a lower data point contains a value of +/-9.9e37, the amplitude at that point will be treated as if it were +/-infinity (i.e. the lower limit will either always fail or always pass at that point).

It is also permitted to set one or more invalid 'placeholder' values of Not-A-Number (NAN). This is useful for defining discontiguous (or segmented) limit lines within a single limit.

For details, and an example, of using placeholder values, see CALC:LIM:CONT:DATA.

<numeric_value> {DBM}, {<numeric_value> {DBM}}, ...

1, Default = 1

1-10, Default = 1

Limit Lower Mode

Choose either ABSolute or RELative limit.

In ABSolute mode, the control value of the limit line is defined by absolute physical values (dBm).

In RELative mode, the control value of the limit line is relative to the reference level (dB).

If a limit of the specified number does not already exist, a default limit will be created first (having empty data, with state set to ON).

<ABSolute|RELative>

ABS|REL

1, Default = 1

1-10, Default = 1

ABSolute

Lower Limit Shift

Move the lower limit up or down by a relative amplitude. This command changes the value of :CALCulate<n>:LIMit<k>:LOWer[:DATA].

Issuing this command multiple times will change the limits each time. For example, sending

CALC:LIM1:LOW:SHIFT 1 dB

CALC:LIM1:LOW:SHIFT 1 dB

CALC:LIM1:LOW:SHIFT 1 dB

CALC:LIM1:LOW:SHIFT 1 dB

CALC:LIM1:LOW:SHIFT 1 dB

will shift the lower limit by 5 dB

If a limit of the specified number does not already exist, a default limit will be created first (having empty data, with state set to ON).

<numeric_value> {DB}

1, Default = 1

1-10, Default = 1

Lower Limit State

Turns ON or OFF the lower limit.

If a limit of the specified number does not already exist, a default limit will be created first (having empty data, with state set to ON).

<0 | 1 | ON | OFF>

0 | 1

1, Default = 1

1-10, Default = 1

OFF

Limit Name

Associates a user-defined name with each limit.

The set version of this command takes a single parameter that is a string containing the desired limit name. The query version returns the name that is set.

If a limit of the specified number does not already exist, a default limit will be created first (having empty data, with state set to ON).

<string>

1, Default = 1

1-10, Default = 1

Limit State

Turns the limit check for a specific limit ON or OFF.

If a limit of the specified number does not already exist, a default limit will be created first (having empty data, with state set to ON).

<0 | 1 | ON | OFF>

0 | 1

1, Default = 1

1-10, Default = 1

OFF

Limit Trace Check

This command turns the limit check for a specific trace on and off.

If a limit of the specified number does not already exist, a default limit will be created first (having empty data, with state set to ON).

<0 | 1 | ON | OFF>

1, Default = 1

1-10, Default = 1

1-6, Default = 1

Upper Limit Data

This command sets or queries the upper limit data (Y-axis values) for the specified limit.

The numeric suffix on LIMit specifies which limit number to query or set data. If the suffix is omitted, the command will refer to limit 1.

If a limit of the specified number does not already exist, a default limit will be created first (having empty data, with state set to ON).

This command takes a list of one or more amplitude values as parameters. For example, CALC:LIM1:UPP:DATA 1 dBm, 2dBm, 3 dBm

Note that it is permitted to set one or more data values of +/- infinity. The placeholder value for +/- infinity is +/-9.9e37. If an upper data point contains a value of +/-9.9e37, the amplitude at that point will be treated as if it were +/-infinity (i.e. the upper limit will either always pass or always fail at that point).

It is also permitted to set one or more invalid 'placeholder' values of Not-A-Number (NAN). This is useful for defining discontiguous (or segmented) limit lines within a single limit.

For details, and an example, of using placeholder values, see CALC:LIM:CONT:DATA.

<numeric_value> {DBM}, {<numeric_value> {DBM}}, ...

1, Default = 1

1-10, Default = 1

Upper Limit Mode

Choose either ABSolute or RELative limit.

In ABSolute mode, the control value of the limit line is defined by absolute physical values (dBm).

In RELative mode, the control value of the limit line is relative to the reference level (dB).

If a limit of the specified number does not already exist, a default limit will be created first (having empty

data, with state set to ON).

<ABSolute|RELative>

ABS|REL

1, Default = 1

1-10, Default = 1

ABSolute

Upper Limit Shift

Move the upper limit up or down by a relative amplitude. This command changes the value of :CALCulate<n>:LIMit<k>:UPPer[:DATA].

Issuing this command multiple times will change the limits each time. For example, sending

CALC:LIM1:UPP:SHIFT 1 dB

CALC:LIM1:UPP:SHIFT 1 dB

CALC:LIM1:UPP:SHIFT 1 dB

CALC:LIM1:UPP:SHIFT 1 dB

CALC:LIM1:UPP:SHIFT 1 dB

will shift the upper limit by 5 dB

If a limit of the specified number does not already exist, a default limit will be created first (having empty data, with state set to ON).

<numeric_value> {DB}

1, Default = 1

1-10, Default = 1

Upper Limit State

Turns ON or OFF the upper limit.

If a limit of the specified number does not already exist, a default limit will be created first (having empty data, with state set to ON).

<0 | 1 | ON | OFF>

0 | 1

1, Default = 1

1-10, Default = 1

OFF

Limit Active

Queries the numbers of all active limit lines in ascending order. This command returns a empty string if no limits are active.

1, Default = 1

Adjacent Channel Power Adjacent Absolute Limit

Sets and queries the amplitude of absolute limit for ACPR adjacent power.

<numeric_value> {DBM}

Numeric (dBm)

10 dBm

dBm

-200 dBm to 200 dBm

ACPR Limit Adjacent Lower Fail

This command queries the result of a limit check

on lower adjacent channel power

Adjacent Channel Power Adjacent Relative Limit

Sets and queries the amplitude of relative limit for ACPR adjacent power.

<numeric_value> {DBM}

Numeric (dBm)

10 dBm

dBm

-200 dBm to 200 dBm

ACPR Limit Adjacent Upper Fail

This command queries the result of a limit check

on upper adjacent channel power

Adjacent Channel Power Alternate Absolute Limit

Sets and queries the amplitude of absolute limit for ACPR alternate power.

<numeric_value> {DBM}

Numeric (dBm)

10 dBm

dBm

-200 dBm to 200 dBm

ACPR Limit Alternate Lower Fail

This command queries the result of a limit check

on lower alternate channel power

Adjacent Channel Power Alternate Relative Limit

Sets and queries the amplitude of relative limit for ACPR alternate power.

<numeric_value> {DBM}

Numeric (dBm)

10 dBm

dBm

-200 dBm to 200 dBm

ACPR Limit Alternate Upper Fail

This command queries the result of a limit check

on upper alternate channel power

ACPR Limit Fail

This command queries the result of a limit check

on adjacent channel power ratio

Adjacent Channel Power Main Limit

Sets and queries the amplitude of limit for main power.

<numeric_value> {DBM}

Numeric (dBm)

10 dBm

dBm

-200 dBm to 200 dBm

Adjacent Channel Power Limit Mode

Sets the ACPR limit mode to be absolute or relative

<ABSolute|RELative>

ABS|REL

ABSolute

Adjacent Channel Power Limit State

Sets the ACPR limit state to be ON or OFF

<0 | 1 | ON | OFF>

0 | 1

OFF

Channel Power Limit

Sets and queries the amplitude of limit on channel power.

<numeric_value> {DBM}

Numeric (dBm)

10 dBm

dBm

-200 dBm to 200 dBm

Channel Power Limit Fail

This command queries the result of a limit check

on channel power

Channel Power Spectral Density Limit

Sets and queries the amplitude of limit on channel power spectral density.

<numeric_value> {DBM}

Numeric (dBm)

10 dBm

dBm

-200 dBm to 200 dBm

Channel Power Spectral Density Limit State

Sets and queries the state of limit on channel power spectral density. The set form of this command sets the limit state to be ON or OFF

<0 | 1 | ON | OFF>

0 | 1

OFF

Power Spectral Density Limit Fail

This command queries the result of a limit check

on channel power spectral density

Channel Power Limit State

Sets and queries the state of limit on channel power. The set form of this command sets the limit state to be ON or OFF

<0 | 1 | ON | OFF>

0 | 1

OFF

Update Limit Envelope Amplitude

This command updates the amplitude of the upper and lower limits without changing the frequencies of the inflection points.

1-10, Default = 1

Create Lower Limit Envelope

This command is used to create an Lower limit envelope on the selected trace.

1-10, Default = 1

Lower Limit Points

This command queries the lower limit trace points (Y-axis values) for the specified limit. This differs from the limit data in that a value is returned for each point in the trace to indicate the values that are being used to evaluate limit pass/fail status.

The numeric suffix on LIMit specifies which limit number to query or set data. If the suffix is omitted, the command will refer to limit 1.

If a limit of the specified number does not exist, an empty list will be returned. Points which are not covered by the limit will be 'inf'.

1-10, Default = 1

Create Upper Limit Envelope

This command is used to create an Upper limit envelope on the selected trace.

1-10, Default = 1

Upper Limit Points

This command queries the upper limit trace points (Y-axis values) for the specified limit. This differs from the limit data in that a value is returned for each point in the trace to indicate the values that are being used to evaluate limit pass/fail status.

The numeric suffix on LIMit specifies which limit number to query or set data. If the suffix is omitted, the command will refer to limit 1.

If a limit of the specified number does not exist, an empty list will be returned. Points which are not covered by the limit will be 'inf'.

1-10, Default = 1

Limit Alarm

This command enables/disables the AAE notification for limit failures.

<0 | 1 | ON | OFF>

0 | 1

OFF

Limit Envelope Offset

This command sets/gets the limit envelope offset. This defines how far away from the measured signal indicated the limit envelope is placed. Use :CALCulate:LIMit:TYPe to set the currently active limit line.

<numeric_value> {DBM}

Numeric (dBm)

3 dBm

dBm

-100 dBm to 100 dBm

Number of Limit Envelope Points

This command sets the number of inflection point for the limit envelope.

<numeric_value>

Numeric

20

2 to 41

Limit Envelope Shape

This command sets/gets the currently active limit envelope shape.

<SQUare|SLOPe>

SQU|SLOP

SQUare

Marker Function

Select the marker function to perform post-processing operation. The default/OFF function performs pass through operation.

<OFF|NOISe|FCOunter>

OFF|NOIS|FCO

1-12, Default = 1

OFF

Maker Move To Highest Peak

Moves the marker X value to the point in the marker's assigned trace that has the highest peak.

1-12, Default = 1

Marker Move To Left Peak

Moves the marker X value to the point in the marker's assigned trace that is the highest peak to the LEFT of the current X position of the marker.

1-12, Default = 1

Marker Move To Next Peak

Moves the marker X value to the point in the marker's assigned trace that is the next highest peak.

1-12, Default = 1

Marker Move To Right Peak

Moves the marker X value to the point in the marker's assigned trace that is the highest peak to the RIGHT of the current X position of the marker.

1-12, Default = 1

Marker Mode

Select the marker mode. POSition mode is a normal marker mode. DELTa mode is marker report difference relative to another marker. FIXed mode is a marker who's Y value is fixed at the last measured value before it is set to FIXed.

<POSition|DELTa|FIXed>

POS|DELT|FIX

1-12, Default = 1

POSition

Marker Move To Left

Moves the marker X value to the next display point to the LEFT.

1-12, Default = 1

Marker Move To Right

Moves the marker X value to the next display point to the RIGHT.

1-12, Default = 1

Marker Reference

Sets the reference marker for the specified delta marker. This setting will be applied only if the marker mode set to DELTa.

<numeric_value>

Numeric

1-12, Default = 1

0

0 to 12

Marker Set Center

Sets the center frequency of the instrument to the current X value of the marker.

1-12, Default = 1

Marker Set Reference Level

Sets the reference level of the instrument to the current Y value of the marker.

1-12, Default = 1

Marker State

Turns the selected marker on or off.

<0 | 1 | ON | OFF>

0 | 1

1-12, Default = 1

OFF

Marker Trace

Changes the trace to which the marker is currently attached.

<numeric_value>

Numeric

1-12, Default = 1

1

1 to 6

Marker Position

Sets the marker frequency.

<numeric_value> {HZ | KHZ | MHZ | GHZ}

Numeric (Hz)

1-12, Default = 1

200000000000 Hz

Hz

-400000000000 Hz to 300000000000 Hz

Marker Position Zero Span

Sets the marker time.

<numeric_value> {PS | NS | US | MS | S | MIN | HR}

Numeric (ms)

1-12, Default = 1

29999.99 ms

ms

-1000 ms to 61670 ms

Marker Value

Set/Get the marker Y value. The user defined Y maker value will be applied only if the marker is in Fixed mode.

<numeric_value> {DBM}

Numeric (dBm)

1-12, Default = 1

10 dBm

dBm

-250 dBm to 130 dBm

Marker All Off

Turns all markers off.

Marker Preset

Presets all markers to their preset values.

All Marker Data

Returns the last stored X and Y values of all markers. The response format is (marker1.x, marker1.y), (marker2.x, marker2.y), ... (markern.x, markern.y). Returns (0,nan) if the marker has never been turned on or the marker is preset.

Marker Excursion

Sets the excursion for a marker. The excursion is the vertical distance from the peak to the next highest valley which must be exceeded for a peak to be considered a peak in marker max commands.

<numeric_value> {DB}

Numeric (dB)

0 dB

dB

0 dB to 200 dB

Marker Excursion State

Turn on/off excursion checking for marker max commands.

<0 | 1 | ON | OFF>

0 | 1

OFF

Marker Threshold

Sets the threshold level for a marker. The threshold is the level that a peak must exceed to be considered a peak in marker max commands.

<numeric_value> {DBM}

Numeric (dBm)

0 dBm

dBm

-200 dBm to 100 dBm

Marker Threshold State

Turn on/off threshold checking for marker max commands.

<0 | 1 | ON | OFF>

0 | 1

OFF

OBW Limit

Sets and queries the frequency limit on occupied bandwidth power.

<numeric_value> {HZ | KHZ | MHZ | GHZ}

Numeric (Hz)

10000 Hz

Hz

1000 Hz to 300000000000 Hz

OBW Limit Fail

This command queries the result of a limit check

on occupied bandwidth power

OBW Power Limit State

Sets and queries the state of limit on occupied bandwidth power. The set form of this command sets the limit state to be ON or OFF

<0 | 1 | ON | OFF>

0 | 1

OFF

Peak Count

The desired number of peaks to be reported by FETC:PEAK? query.

<numeric_value>

Numeric

1

1 to 6

Peak Threshold Level

Sets the threshold level which peak powers must exceed to be reported by FETC:PEAK? query.

<numeric_value> {DBM}

Numeric (dBm)

0 dBm

dBm

-150 dBm to 30 dBm

Peak Threshold State

Turn ON|OFF the threshold that peak powers must exceed to be reported by PEAKS? query.

<0 | 1 | ON | OFF>

0 | 1

OFF

Configure Adjacent Channel Power Ratio

Configures and enables the default adjacent channel power ratio measurement. Disables channel power and occupied bandwidth measurements. Sets the main channel bandwidth equal to the span. Sets the adjacent channel bandwidth and channel spacing equal to the main channel bandwidth. Sets the detection method to RMS. Sets the instrument to single sweep mode (:INITiate:CONTinuous OFF). Measurement settings can be modified by using the [:SENSe]:ACPower commands before initiating a sweep.

Configure Channel Power

Configures and enables the default channel power measurement. Disables ACPR and occupied bandwidth measurements. Sets the integration bandwidth equal to the span. Sets the detection method to RMS. Sets the instrument to single sweep mode (:INITiate:CONTinuous OFF). Measurement settings can be modified by using the [:SENSe]:CHPower commands before initiating a sweep. Note that this measurement is not valid in zero span.

Configure Occupied Bandwidth

Configures and enables the default occupied bandwidth measurement. Disables channel power and ACPR measurements. Sets the method to %. Sets the % of power to 99%. Sets the instrument to single sweep mode (:INITiate:CONTinuous: OFF). Measurement settings can be modified by using the [:SENSe]:OBWidth commands before initiating a sweep. Note that this measurement is not valid in zero span.

Measured Sweep Time

This command queries the measured sweep time, in number of milliseconds. This command will return "nan" if no measured sweep time is available, which happens if the sweep was reset and the instrument has not yet swept enough to measure a full sweep.

Display Point Count

Changes the number of display points the instrument currently measures. Increasing the number of display points can improve the resolution of measurements but will also increase sweep time.

<numeric_value>

Numeric

501

10 to 4001

Display View

The display view command can be used to enable/disable spectrogram features in the spectrum application.

<NORMal|SPECtrogram>

NORM|SPEC

NORMal

Spectrogram Scale Auto Adjust

Automatically adjusts the spectrogram scale reference and bottom amplitude to the max and min amplitudes, respectively, of the most recent trace data collected.

Spectrogram Scale Bottom

The spectrogram scale bottom indicates the amplitude that corresponds to the least intense color in the spectrogram waterfall display. This is used in conjunction with the spectrogram scale reference command to establish the color gradient scale.

<numeric_value> {DBM}

Numeric (dBm)

-90 dBm

dBm

-150 dBm to 30 dBm

Spectrogram History Data

This command transfers the spectrogram history from the instrument to the client.

This command takes an integer parameter specifying the last trace ID received by client and returns all trace data after the received trace ID in a binary block response. The binary block response is formatted as below

History Header: (20 bytes)

Number Of Traces: 4 bytes, unsigned integer

Number Of Trace Points Per Trace : 4 bytes, unsigned integer

Last trace ID in the block: 4 bytes, unsigned integer

Reserved: 8 bytes

History Body:

Block of trace points formatted as a 4 byte, single-precision floating point value for each point. The history body size (in bytes) can be calculated as: <Number Of Traces> * (<Number Of Trace Points Per Trace> * 4).

If no new trace data was found in history, this command will return header only binary block with all zeros except <last trace ID in the block> is set to the last trace ID received by client.

<numeric_value>

Spectrogram History Elapsed

Provides the time values for the specified index in spectrogram history. Returns a negative value if the specified index is invalid.

<numeric_value>

Spectrogram Hue

The spectrogram hue command indicates the color that represents the highest amplitude in the spectrogram waterfall display. All of the other amplitudes are represented by colors starting at this hue setting and following a color wheel.

<numeric_value>

Numeric

0

0 to 359

Spectrogram Layout

The spectrogram layout command describes where the spectrogram should be drawn on the front end. This command doesn't change any behavior in the backend but will be included in save/recall operations.

<BOTTom|TOP|FULLscreen>

BOTT|TOP|FULL

BOTTom

Spectrogram Scale Reference

The spectrogram scale reference indicates the amplitude that corresponds to the most intense color in the spectrogram waterfall display. This is used in conjunction with the spectrogram scale bottom command to establish the color gradient scale.

<numeric_value> {DBM}

Numeric (dBm)

10 dBm

dBm

-150 dBm to 30 dBm

Spectrogram Per Division

Identifies the scale of the spectrogram's grid spacing.

<numeric_value> {PS | NS | US | MS | S | MIN | HR}

Numeric (ms)

1000 ms

ms

1000 ms to 100000 ms

Cursor Selection

Selects which time cursor setting to use, position or time. For position, the DISP:VIEW:SPEC:POS setting will be used to determine which trace from the spectrogram history to show. For time, the DISP:VIEW:SPEC:TIME setting will be used instead.

<POSition|TIME>

POS|TIME

POSition

Scale Per Division

Set or query the scale per division setting of trace graph. This command doesn't change any behavior in the backend, but will be included in save/recall operations.

<numeric_value>

Numeric

10

1 to 15

Reference Level

Sets the reference level amplitude value for the y-axis. This value is the display reference level, which means it has the reference level offset applied. It also means that a change to the reference level offset will change this setting (though the actual, unadjusted reference level will stay the same).

Note that this may cause a change in attenuation if the automatic input attenuation coupling is enabled. For the purpose of coupling, the actual reference level (without the offset applied) is used, though this command will always reflect the display value.

For example, suppose a starting reference level offset of 0 dB and a reference level of 10 dBm. If the offset is set to 20 dB, the display reference level will be set to 10 dBm - 20 dB = -10 dBm; no attenuation change will occur. Likewise, if the starting reference level offset is 20 dB and the (display) reference level is set to 0 dBm, the display reference level will remain at 0 dBm, though the (actual) reference level value used in auto attenuation coupling is 0 dBm + 20 dB = 20 dBm.

To obtain the actual reference level, either add in the reference level offset, or temporarily set the offset to 0 (in which case the display reference level will reflect the actual one).

<numeric_value> {DBM}

Numeric (dBm)

10 dBm

dBm

-150 dBm to 30 dBm

Automatic Reference Level

This command causes the reference level to immediately be set to an automatically computed value that best displays the particular data. The reference level is set to a specified dB above the selected trace max value. This command is semantically equivalent to :DISPlay[:WINDow]:TRACe[:SCALe]:RLEVel <amplitude> with the computed value for amplitude.

<numeric_value> {DB}

Reference Level Offset

Sets the reference level offset value for the y-axis.

This offset is used for display purposes only, and does not affect the actual reference level used for auto attenuation coupling, or any other settings that depend on reference level.

See DISP:WIND:TRAC:Y:SCAL:RLEV for details on the interaction between reference level offset and display reference level.

<numeric_value> {DB}

Numeric (dB)

0 dB

dB

-99.9 dB to 99.9 dB

Fetch Adjacent Channel Power Ratio

Returns the most recent adjacent channel power ratio measurement results. If the instrument is sweeping, it will not return until the sweep is complete. If the instrument is not sweeping and the current data is not valid it will return error -230. This could occur if there was a *RST immediately before the :FETCh? or if a measurement parameter was changed without an :INITiate

Data is returned as 9 comma-separated values: main channel power, absolute lower adjacent channel power, absolute upper adjacent channel power, absolute lower alternate channel power, absolute upper alternate channel power, relative lower adjacent channel power, relative upper adjacent channel power, relative lower alternate channel power, relative upper alternate channel power.

If the measurement is not enabled (see [:SENSe]:CHPower:STATe) then, the instrument will indicate error -400 and return the string "nan,nan,nan,nan,nan,nan,nan,nan,nan"

Fetch Amplitude

Returns the amplitude at the given frequency. The command does not wait for the sweep to complete.

If the trace data at the requested frequency is invalid (or out of span) then NAN is returned and error code -230 is indicated.

<numeric_value> {HZ | KHZ | MHZ | GHZ}

Fetch Channel Power and Density

This command returns the most recent channel power measurement results: channel power and channel power density.

If the instrument is sweeping, it will not return until the sweep is complete.\

If the instrument is not sweeping and the current data is not valid it will return error -230. This could occur if there was a *RST immediately before the :FETCh? or if a measurement parameter was changed without an :INITiate. Data is returned as 2 comma-separated values: channel power, channel power density.

If the measurement is not enabled (see [:SENSe]:CHPower:STATe) then, the instrument will indicate error -400 and return the string "nan,nan"

Fetch Channel Power

Returns the most recent channel power measurement result. It returns only the channel power, not the channel power density. Use :FETCh:CHPower? to get both channel power and channel power density.

If the instrument is sweeping, it will not return until the sweep is complete. If the instrument is not sweeping and the current data is not valid it will return error -230. This could occur if there was a *RST immediately before the :FETCh? or if a measurement parameter was changed without an :INITiate.

If the measurement is not enabled (see [:SENSe]:CHPower:STATe) then, the instrument will indicate error -400 and return the string "nan,nan"

Fetch Channel Power Density

Returns the most recent channel power density measurement result. It returns only the channel power density, not the channel power.

Use :FETCh:CHPower? to get both channel power and channel power density.

If the instrument is sweeping, it will not return until the sweep is complete. If the instrument is not sweeping and the current data is not valid it will return error -230. This could occur if there was a *RST immediately before the :FETCh? or if a measurement parameter was changed without an :INITiate.

If the measurement is not enabled (see [:SENSe]:CHPower:STATe) then, the instrument will indicate error -400 and return the string "nan,nan"

Fetch Occupied Bandwidth

Returns a different set of measurement information depending on the suffix. The default suffix of 1 will return the most recent occupied bandwidth measurement results: occupied bandwidth, percent of power and dB down. One of either percent of power or dB down is measured and the other is set. That is determined by the value set using [:SENSe]:OBWidth:METHod. If the measurement is not enabled with :SENSe:OBWidth:STATe then, the instrument will indicate error -400 and return the string "nan,nan,nan".

Using suffix 2 will return the most recent channel power, x dB bandwidth, percent bandwidth, and transmit frequency error. The channel power and occupied bandwidth measurements will be calculated regardless of CHP:STAT and OBW:STAT settings.

Using suffix 3 will return the same results as 1, plus the start, center, and end frequencies of the occupied bandwidth.

For all suffixes, if the instrument is sweeping, it will not return until the sweep is complete. If the instrument is not sweeping and the current data is not valid it will return error -230. This could occur if there was a *RST immediately before the :FETCh? or if a measurement parameter was changed without an :INITiate.

1-3, Default = 1

Fetch Peak

Returns a pair (amplitude, frequency in Hz) of the peak amplitude in the current sweep. The command does not wait for the sweep to complete. If the trace data is invalid then both numbers in the pair will be NAN and error code -230 will be indicated.

Trace Data Format

This command specifies the format in which data is returned in TRAC:DATA queries. The optional numeric parameter is needed for REAL format only. It defines the length of the floating point number in bits. Valid values are 32 and 64. If the optional numeric parameter is omitted, the default length of REAL data is set to 64 bits.

ASCii format returns the data in comma-separated ASCII format. The units are the current measurement units.

INTeger,32 values are signed 32-bit integers in little-endian byte order. This format returns the data in 4-byte blocks. The values are scaled by 1000, so if the current measurement units are dBm the integer values would be mdBm. For example, if the measured result was -12.345 dBm, that value would be sent as -12345.

REAL,32 values are 32-bit floating point numbers conforming to the IEEE 754 standard in little-endian byte order. This format returns the data in 4-byte binary format. The units are the current measurement units.

REAL,64 values are 64-bit floating point numbers conforming to the IEEE 754 standard in little-endian byte order. This format returns the data in 8-byte binary format. The units are the current measurement units.

<ASCii|INTeger|REAL>,[<numeric_value>]

ASC|INT|REAL

ASCii

Sweep Type

Specifies whether the sweep/measurement is triggered continuously. If the value is set to ON or 1, another sweep/measurement is triggered as soon as the current one completes. If continuous is set to OFF or 0, the instrument remains initiated until the current sweep/measurement completes, then enters the 'idle' state and waits for the :INITiate[:IMMediate] command or for :INITiate:CONTinuous ON.

If :INITiate:CONTinuous is changed to ON before the current sweep/measurement completes, a new sweep/measurement will be continuously triggered as soon as the current sweep/measurement completes. If :INITiate[:IMMediate] is received before the current sweep/measurement completes, it will be ignored. Clients must either wait for the current sweep/measurement to complete before triggering a 'single sweep', or :ABORt the sweep/measurement after setting :INITiate:CONTinuous to OFF (which will cause the instrument to immediately enter the idle state where it can accept new triggers).

The default value is ON. That is, sending :INIT:CONT is equivalent to sending :INIT:CONT ON. The query version of the command returns a 1 if the instrument is continuously sweeping/measuring and returns a 0 if the instrument is in single sweep/measurement mode.

<0 | 1 | ON | OFF>

0 | 1

ON

Initiate Single Sweep

Initiates a sweep/measurement. If :INITiate:CONTinuous is set to ON, or if :INITiate:CONTinuous is set to OFF but the current sweep has not completed yet, this command is ignored. Use this command in combination with :STATus:OPERation? or *OPC? to synchronize the capture of one complete set of data. When this command is sent, the "sweep complete" bit of :STATus:OPERation? is set to 0, indicating that the measurement has not completed. The data collection is then triggered. The controlling program can poll :STATus:OPERation? to determine the status. When the "sweep complete" bit is set to 1, data is ready to be retrieved.

This command is also overlapped, so alternatively, *OPC? can be used to wait for completion of the measurement without polling. When this command is received, the pending operation bit is set. The pending operation will finish once the sweep/measurement is done. Clients can use *OPC? to 'block' until the sweep/measurement is completed.

Initiate Average Count Sweep

Initiates sweep until all active traces reach its average count

RemoteSpectrumAnalyzerId

This command can be used to indicate the device is being used by someone. The set command takes two parameters:

- a boolean to indicate whether the device is being used

- a string to indicate the identification of someone currently using the device.

When a value of 1 is passed into the boolean parameter (indicating the device being used), the identification string parameter must be non-empty; otherwise, a scpi error will be generated.

When no longer being used, these settings should be cleared with a boolean parameter of zero. The string paramter does not matter because it will automatically be set to the empty string.

The query command returns the current values of the boolean and the string settings. The remote identification string setting is empty only if it has never been set or has been cleared via this command.

Both settings will be reset after a reboot.

<0 | 1 | ON | OFF>,<string>

Measure Adjacent Channel Power Ratio

Sets the active measurement to adjacent channel power ratio, sets the default measurement parameters, triggers a new measurement and returns the main channel power, lower adjacent, upper adjacent, lower alternate and upper alternate channel power results. It is a combination of the commands :CONFigure:ACPower; :READ:ACPower? For a description of the default adjacent channel power ratio measurement parameters see :CONFigure:ACPower. To make an adjacent channel power ratio measurement with settings other than the default values send: :CONFigure:ACPower

Commands to set desired settings: :READ:ACPower?

Data is returned as 9 comma-separated values: main channel power, absolute lower adjacent channel power, absolute upper adjacent channel power, absolute lower alternate channel power, absolute upper alternate channel power, relative lower adjacent channel power, relative upper adjacent channel power, relative lower alternate channel power, relative upper alternate channel power.

Measure Channel Power And Density

Sets the active measurement to channel power, sets the default measurement parameters, triggers a new measurement and returns the channel power and channel power density results. It is a combination of the commands :CONFigure:CHPower; :READ:CHPower?

For a description of the default channel power measurement parameters see :CONFigure:CHPower. To make a channel power measurement with settings other than the default values send: :CONFigure:CHPower Commands to set desired settings :READ:CHPower? Data is returned as 2 comma-separated values: channel power, channel power density.

Measure Channel Power

Sets the active measurement to channel power, sets the default measurement parameters, triggers a new measurement and returns channel power as the result. It is a combination of the commands :CONFigure:CHPower; :READ:CHPower:CHPower?

To measure both channel power and channel power density use MEASure:CHPower? For a description of the default channel power measurement parameters see :CONFigure:CHPower. To make a channel power measurement with settings other than the default values send: :CONFigure:CHPower, Commands to set desired settings: :READ:CHPower:CHPower?

Measure Channel Power Density

Sets the active measurement to channel power, sets the default measurement parameters, triggers a new measurement and returns channel power density as the result. It is a combination of the commands :CONFigure:CHPower; :READ:CHPower:DENSity?

To measure both channel power and channel power density use MEASure:CHPower? For a description of the default channel power measurement parameters see :CONFigure:CHPower. To make a channel power measurement with settings other than the default values send: :CONFigure:CHPower, Commands to set desired settings: :READ:CHPower:DENSity?

Load Limit From File

This command loads limit data from the specified limit file.

The file location is resolved using the MSUS and file path parameters. Parameters:

1. Label: Used to specify which limit to load. Currently, the label only supports loading all limits. Send an empty string or "ALL" to load all limits.

2. File path: The file path (including file name) relative to the MSUS root directory. File path is case sensitive. File extension is optional.

3. MSUS: Device to load the file from. See MMEMory:MSUSs? for information on obtaining the list of available devices. MSUS parameter is case sensitive.

For example:

MMEMory:LOAD:LIMit "ALL","/example_limit_file", "USB1"

The model of the device that the limit was saved in must match the model of the the device to load in; otherwise, the load will be rejected.

<string>,<string>,<string>

Load RAM

Store data to RAM from a file. This command takes three parameters

1. data block size: that needs to be stored in bytes (must be a word aligned)

2. offset: in bytes from start of RAM address to store data at

3. filename: name of the file without the full path. Contents of this file will be copied over to RAM

<numeric_value>,<numeric_value>,<string>

Clear All Save On Event

Turns off all save on event types that are active.

End of Sweep Save On Event Mode

Specifies the stop mode of the end of sweep save on event system. Setting the value to CONTinuous will cause the instrument to keep saving traces at the completion of every valid sweep. Setting the value to SINGle will trigger a save trace on the next complete valid sweep and then automatically turn the end of sweep save on event feature OFF.

<CONTinuous|SINGle>

CONT|SING

CONTinuous

End of Sweep Save on Event State

Turn the end of sweep save on event ON or OFF. Turning the feature on will cause the instrument to automatically save a trace whenever a sweep completes.

A common cause of the command failure is not having enough space available on the storage location. Use :MMEMory:CATalog:DIRectory query command to retrieve the total space available on the storage location.

<0 | 1 | ON | OFF>

0 | 1

OFF

Limit Save On Event Interval

Sets the time interval to keep saving after a limit line failure has occured when :MMEMory:STOEvent:LIMit:MODE is set to INTerval.

<numeric_value> {PS | NS | US | MS | S | MIN | HR}

Numeric (ms)

60000 ms

ms

0 ms to 216000000 ms

End of Sweep Save On Event Mode

Specifies the stop mode of the limit save on event system. Setting the value to CONTinuous will cause the instrument to keep saving traces at every limit line failure. Setting the value to SINGle will trigger a save trace on the next limit line failure and then automatically turn the end of sweep save on event feature OFF automatically. Setting the value to INTerval will trigger a save on the next limit line failure and contiue to save at every end of sweep until the set time interval has expired.

<CONTinuous|SINGle|INTerval>

CONT|SING|INT

CONTinuous

Limit Pretrigger Save on Event State

Turn the limit pre-trigger save on event ON or OFF. Turning the feature ON will cause the instrument to automatically save a trace captured prior to the limit line failure trace. The :MMEMory:STOEvent:LIMit[:STATe] and :INITiate:CONTinuous needs to be turned ON for the pre-trigger feature to apply.

A common cause of the command failure is not having enough space available on the storage location. Use :MMEMory:CATalog:DIRectory query command to retrieve the total space available on the storage location.

<0 | 1 | ON | OFF>

0 | 1

OFF

Limit Save on Event State

Turn the limit save on event ON or OFF. Turning the feature on will cause the instrument to automatically save a trace whenever a limit line failure occurs.

A common cause of the command failure is not having enough space available on the storage location. Use :MMEMory:CATalog:DIRectory query command to retrieve the total space available on the storage location.

<0 | 1 | ON | OFF>

0 | 1

OFF

Timer Save On Event Interval

Sets the time interval to save when :MMEMory:STOEvent:TIMer[:STATe] is enabled. The queried value is always in milliseconds.

<numeric_value> {PS | NS | US | MS | S | MIN | HR}

Numeric (ms)

240000 ms

ms

0 ms to 3600000 ms

Limit Save on Event State

Turn the timer save on event ON or OFF. Turning the feature on will cause the instrument to automatically save a trace at the interval specified by :MMEMory:STOEvent:LIMit:INTerval, if space is available. Available memory may be checked using :MMEMory:CATalog:DIRectory query command.

<0 | 1 | ON | OFF>

0 | 1

OFF

Store Limit To File

This command stores the limit data into the specified file location. The file location is resolved using the MSUS and file path parameters. Intermediate folders specified by the file path parameter are automatically created. The output file extension is .lim.

The command automatically overwrites the specified file if present. Parameters:

1. Label: Used to specify which limit to store. Currently, the label only supports storing all limits. Send an empty string or "ALL" to store all limits.

2. File path: The file path (including file name) relative to the MSUS root directory. File path is case sensitive. File extension is optional.

3. MSUS: Device to store the file to. See MMEMory:MSUSs? for information on obtaining the list of available devices. MSUS parameter is case sensitive.

For example:

MMEMory:STORe:LIMit "ALL","/example_limit_file", "USB1"

A common cause of the command failure is not having enough space available on the storage location. Use :MMEMory:CATalog:DIRectory query command to retrieve the total space available on the storage location.

<string>,<string>,<string>

Store RAM

Load data from RAM to a file. This command takes three parameters

1. data block size: that needs to be loaded in bytes (must be a word aligned)

2. offset: in bytes from start of RAM address to load from

3. filename: name of the file without the full path. This is the destination file where the contents of RAM are copied over

<numeric_value>,<numeric_value>,<string>

Store Trace in CSV

This command saves the current trace to CSV file in specified file location. The file location is resolved using the MSUS and file path parameters. These parameters are case sensitive.

Parameters:

1. Label: Used to specify which trace to save. Currently, the label only supports saving all traces. Send an empty string or "ALL" to store all traces.

2. File path: The file path (including file name) relative to the MSUS root directory. File extension should not be specified.

3. MSUS: Device to save the file on. See MMEMory:CATalog:MSUSs? for information on obtaining the list of available devices.

A common cause of the command failure is not having enough space available on MSUS to save trace. Use :MMEMory:CATalog:DIRectory query command to retrieve the total space available on MSUS.

<string>,<string>,<string>

Read Adjacent Channel Power Ratio

Triggers a new adjacent channel power ratio measurement and returns the results: main channel power, lower adjacent and upper adjacent channel power. It is the equivalent of the command sequence :ABORT; :INITiate; :FETCh:ACPower?

The channel power measurement must be the active measurement (specified by the command :CONFigure:ACPower).The instrument should be in the single sweep mode.

The current measurement can be queried using the command :CONFigure? Data is returned as 9 comma-separated values: main channel power, absolute lower adjacent channel power, absolute upper adjacent channel power, absolute lower alternate channel power, absolute upper alternate channel power, relative lower adjacent channel power, relative upper adjacent channel power, relative lower alternate channel power, relative upper alternate channel power.

If the measurement is not active, the instrument will indicate error -400 and return the string "nan,nan,nan,nan,nan". If :INITiate command fails or if :INITiate:CONTinuous is set to ON(continuous sweep) it returns a string "nan,nan,nan,nan,nan,nan,nan,nan,nan"

Read Channel Power And Density

Triggers a new channel power measurement and returns the results: channel power and channel power density. It is the equivalent of the command sequence: ":ABORT; :INITiate; :FETCh:CHPower?"

The channel power measurement must be the active measurement (specified by the command :CONFigure:CHPower).The instrument should be in the single sweep mode. Data is returned as 2 comma-separated values: channel power, channel power density.

If the measurement is not active, the instrument will indicate error -400 and return the string "nan,nan". If :INITiate command fails, or if :INITiate:CONTinuous is set to ON(continuous sweep), it returns a string "nan,nan".

Read Channel Power

Triggers a new channel power measurement and returns the channel power result: channel power. It is the equivalent of the command sequence ":ABORT; :INITiate; :FETCh:CHPower:CHPower?"

The channel power measurement must be the active measurement (specified by the command :CONFigure:CHPower).The instrument should be in the single sweep mode. Data returned is: channel power.

If the measurement is not active, the instrument will indicate error -400 and return the string "nan,nan". If :INITiate command fails, or if :INITiate:CONTinuous is set to ON(continuous sweep), it returns a string "nan,nan".

Read Channel Power Density

Triggers a new channel power measurement and returns the results: channel power density. It is the equivalent of the command sequence :ABORT; :INITiate; :FETCh:CHPower:DENSity? The channel power measurement must be the active measurement (specified by the command :CONFigure:CHPower).The instrument should be in the single sweep mode. Data returned is: channel power density.

If the measurement is not active, the instrument will indicate error -400 and return the string "nan,nan". If :INITiate command fails, or if :INITiate:CONTinuous is set to ON(continuous sweep), it returns a string "nan,nan"

Adjacent CHPWR Adjacent Integration Bandwidth

Sets the adjacent channel bandwidth for adjacent channel power measurement. Integration bandwidth must be less than or equal to span

<numeric_value> {HZ | KHZ | MHZ | GHZ}

Numeric (Hz)

10350000 Hz

Hz

10 Hz to 400000000000 Hz

Adjacent CHPWR Alternate Integration Bandwidth

Sets the alternate channel bandwidth for adjacent channel power measurement. Integration bandwidth must be less than or equal to span

<numeric_value> {HZ | KHZ | MHZ | GHZ}

Numeric (Hz)

10350000 Hz

Hz

10 Hz to 400000000000 Hz

Adjacent CHPWR Main Integration Bandwidth

Sets the main channel bandwidth for adjacent channel power measurement. Integration bandwidth must be less than or equal to span

<numeric_value> {HZ | KHZ | MHZ | GHZ}

Numeric (Hz)

10350000 Hz

Hz

10 Hz to 400000000000 Hz

Adjacent Channel Power Spacing

Controls the channel spacing which is the distance from the modulated carrier signal to the

upper or lower Adjacent Channel.

<numeric_value> {HZ | KHZ | MHZ | GHZ}

Numeric (Hz)

10350000 Hz

Hz

10 Hz to 400000000000 Hz

Adjacent Channel Power State

Sets the state of the adjacent channel power ratio measurement, ON or OFF. When using :CONFigure:ACPower, the state is automatically set to ON

<0 | 1 | ON | OFF>

0 | 1

OFF

Sense Average Count

Sets the effective number of averages and the length of the rolling min and max hold. Due to memory limitations the actual length of buffers for rolling min and max hold are limited to 2,000,000 / number of trace points.

<numeric_value>

Numeric

10

2 to 1000

Sense Average Type

Specifies how successive traces are combined to produce the resulting display value. Only applies to trace 1. Setting the TYPE to NORMal will cause the displayed value for a point to be the current measured value for that point. Setting the TYPE to AVERage will cause the displayed value for a point to be the average of the last <integer> measured values where <integer> is set by [:SENSe]:AVERage:COUNt. Setting the TYPE to MAXimum will cause the displayed value for a point is the maximum measured value for that point over sweeps. Setting the TYPE to MINimum will cause the displayed value for a point is the minimum measured value for that point over sweeps.Setting the TYPE to RMAXimum will cause the displayed value for a point to be the maximum of the last <integer> measured values where <integer> is set by [:SENSe]:AVERage:COUNt.Setting the TYPE to RMINimum will cause the displayed value for a point to be the minimum of the last <integer> measured values where <integer> is set by [:SENSe]:AVERage:COUNt.

<NORMal|MINimum|MAXimum|AVERage|RMAXimum|RMINimum|RAVerage>

NORM|MIN|MAX|AVER|RMAX|RMIN|RAV

NORMal

RBW Zero Span

Sets the resolution bandwidth.

Note that using this command turns the automatic resolution bandwidth setting OFF.

In Zero Span, the range will change to allow a mininum of 5 KHz to the maximum of 20 MHz.

<numeric_value> {HZ | KHZ | MHZ | GHZ}

Numeric (Hz)

3000000 Hz

Hz

5000 Hz to 20000000 Hz

RBW

Sets the resolution bandwidth.

Note that using this command turns the automatic resolution bandwidth setting OFF.

<numeric_value> {HZ | KHZ | MHZ | GHZ}

Numeric (Hz)

3000000 Hz

Hz

10 Hz to 3000000 Hz

RBW Span Ratio

Sets the ratio of the resolution bandwidth to the span for use when the resolution bandwidth to span coupling is enabled. Note that the front panel interface sets the inverse ratio: the span to the resolution bandwidth.

<numeric_value>

Numeric

0.01

1e-05 to 1

RBW Filter Type

This command sets the RBW filter type, Flat Top window or Nutall.

<FLATtop|NUTall>

FLAT|NUT

FLATtop

VBW Zero Span

Sets the video bandwidth.

Note that using this command turns the automatic video bandwidth setting OFF.

In Zero Span, the range will change to allow a mininum of 5 KHz to the maximum of 20 MHz.

The Default value will also change to 3 MHz.

<numeric_value> {HZ | KHZ | MHZ | GHZ}

Numeric (Hz)

3000000 Hz

Hz

5000 Hz to 20000000 Hz

VBW

Sets the video bandwidth.

Note that using this command turns the automatic video bandwidth setting OFF.

<numeric_value> {HZ | KHZ | MHZ | GHZ}

Numeric (Hz)

1000000 Hz

Hz

1 Hz to 3000000 Hz

VBW RBW Ratio

Sets the ratio of the video bandwidth to the resolution bandwidth for use when the video to resolution bandwidth coupling is enabled. Note that the front panel interface sets the inverse ratio: the resolution bandwidth to the video bandwidth which is an integer, in other words, if you send 0.35, the display will show 2 not 2.857

<numeric_value>

Numeric

0.333333333333333

1e-05 to 1

VBW Averaging

Changes the VBW/Average type.

<LINear|LOGarithmic>

LIN|LOG

LINear

RBW Auto

Sets the state of the coupling of the resolution bandwidth to the frequency span. Setting the value to ON or 1 will result in the resolution bandwidth being coupled to the span. That is, when the span changes, the resolution bandwidth changes. Setting the value to OFF or 0 will result in the resolution bandwidth being decoupled from the span. That is, changing the span will not change the resolution bandwidth. When this command is issued, the resolution bandwidth setting itself will not change

<0 | 1 | ON | OFF>

0 | 1

ON

VBW Auto

Sets the state of the coupling of the video bandwidth to the resolution bandwidth. Setting the value to ON or 1 will result in the video bandwidth being coupled to the resolution bandwidth. That is, when the resolution bandwidth changes, the video bandwidth changes. Setting the value to OFF or 0 will result in the video bandwidth being decoupled from the resolution bandwidth. That is, changing the resolution bandwidth will not change the video bandwidth

<0 | 1 | ON | OFF>

0 | 1

ON

Capture Time

Determines how much time to spend taking samples for each portion of the spectrum.

Increasing the capture time is useful for detecting modulated signals (frequency or amplitude modulation). The query version of this command reports the setting value in milliseconds.

<numeric_value> {PS | NS | US | MS | S | MIN | HR}

Numeric (ms)

0 ms

ms

0 ms to 10000 ms

Actual Capture Time

Returns actual time spent taking samples for each portion of the spectrum. The query version of this command reports the setting value in milliseconds.

Numeric (ms)

0 ms

ms

0 ms to 11000 ms

CHPWR Integration Bandwidth

Sets the integration bandwidth for channel power measurement. Integration bandwidth must be less than or equal to span

<numeric_value> {HZ | KHZ | MHZ | GHZ}

Numeric (Hz)

10350000 Hz

Hz

10 Hz to 400000000000 Hz

Channel Power State

Sets the state of the channel power measurement, ON or OFF. When

using :CONFigure:CHPower,the state is automatically set to ON

<0 | 1 | ON | OFF>

0 | 1

OFF

Center Frequency

Sets the center frequency. Note that changing the value of the center frequency will change the value of the coupled parameters Start Frequency and Stop Frequency. It may also change the value of the span.

<numeric_value> {HZ | KHZ | MHZ | GHZ}

Numeric (Hz)

3000000000 Hz

Hz

-99999999995 Hz to 299999999995 Hz

Frequency Offset

Set a frequency offset, which will be added to the start, stop, and center frequencies. This offset is for display purposes only and does not affect the frequency range being measured.

<numeric_value> {HZ | KHZ | MHZ | GHZ}

Numeric (Hz)

0 Hz

Hz

-10000000000 Hz to 10000000000 Hz

Span

Sets the frequency span. Setting the value of <freq> to 0 Hz is the equivalent of setting the span mode to zero span. Note that changing the value of the frequency span will change the value of the coupled parameters Start Frequency and Stop Frequency and may change the Center Frequency.

<numeric_value> {HZ | KHZ | MHZ | GHZ}

Numeric (Hz)

400000000000 Hz

Hz

10 Hz to 400000000000 Hz

Set to Full Span

Sets the frequency span to full span. Note that changing the value of the frequency span will change the value of the coupled parameters, Start Frequency and Stop Frequency and may change the Center Frequency.

Set to Last Span

Sets the frequency span to the previous span value. Note that changing the value of the frequency span will change the value of the coupled parameters, Start Frequency and Stop Frequency and may change the Center Frequency.

Start Frequency

Sets the start frequency. Note that in the spectrum analyzer, changing the value of the start frequency will change the value of the coupled parameters, Center Frequency and Span.

<numeric_value> {HZ | KHZ | MHZ | GHZ}

Numeric (Hz)

0 Hz

Hz

-100000000000 Hz to 299999999990 Hz

Frequency Step

Set or query the step size to gradually increase or decrease frequency value. This command doesn't change any behavior in the backend but will be included in save/recall operations.

<numeric_value> {HZ | KHZ | MHZ | GHZ}

Numeric (Hz)

1000000 Hz

Hz

1000 Hz to 1000000000 Hz

Stop Frequency

Sets the stop frequency. Note that in the spectrum analyzer, changing the value of the stop frequency will change the value of the coupled parameters, Center Frequency and Span.

<numeric_value> {HZ | KHZ | MHZ | GHZ}

Numeric (Hz)

6000000000 Hz

Hz

-99999999990 Hz to 300000000000 Hz

Image Rejection

This command sets/queries image rejection mode. NLOW sets local oscillator(LO) to lowside only. NHIGh sets LO to highside only. Default is NORMal which engages both high and low and applies the image rejection algorithm.

<NLOW|NHIGh|NORMal>

NLOW|NHIG|NORM

NORMal

Occupied Bandwidth Method

Sets the method for calculating occupied bandwidth. XDB calculates the occupied bandwidth based on points a specified number of dB below the carrier. Issue command [:SENSe]:OBWidth:XDB to set the number of dB to be used. PERCent calculates the occupied bandwidth based on points a specified percentage of the carrier power below the carrier. Issue command [:SENSe]:OBWidth:PERCent to set the percentage to be used.

The measurement always gives a result, even if there is no signal. For example, the 100 dBc Occupied Bandwidth is the current full span.

<XDB|PERCent>

XDB|PERC

PERCent

Occupied Bandwidth Percent

This command sets the percentage of carrier power used to measure the occupied bandwidth. This value is used in the measurement if :SENSe:OBWidth:METHod is set to PERCent.

<numeric_value>

Numeric

99

1e-06 to 99.999999

Occupied Bandwidth State

Sets the state of the occupied bandwidth measurement, ON or OFF. When using :CONFigure:OBWidth, the state is automaticaly set to ON

<0 | 1 | ON | OFF>

0 | 1

OFF

Occupied Bandwidth XDB

This command sets the number of dB below the carrier used to measure the occupied bandwidth. This value is used in the measurement if :SENSe:OBWidth:METHod is set to XDB.

<numeric_value> {DB}

Numeric (dB)

3 dB

dB

0.001 dB to 100 dB

IF Gain State

Sets the state of the IF Gain. Note that the reference level must be set less than or equal to ?10 dBm in order to turn on the IF gain.

<0 | 1 | ON | OFF>

0 | 1

OFF

External Reference State

Enable or disable the use of an external 10 MHz reference as a reference source.

<0 | 1 | ON | OFF>

0 | 1

OFF

Sweep Time

Sets the value of the minimum sweep time parameter. The sweep will complete in the shortest time possible greater than the specified time. To sweep as fast as possible, enter the minimum value allowed for the sweep time. Applies to zero span sweeps only.

<numeric_value> {PS | NS | US | MS | S | MIN | HR}

Numeric (ms)

30000 ms

ms

0.02 ms to 60000 ms

Get Operation Status

This command requests information about the current status of the instrument. Each bit of the return value represents some operation. Only a subset of the bits are implemented for each application. The number returned is the decimal representation of the bit-wise OR of the enabled bits:

Bit Decimal Value_Description

0 1 Not implemented

1 2 Not implemented

2 4 Not implemented

3 8 Not implemented

4 16 Not implemented

5 32 Not implemented

6 64 Not implemented

7 128 Not implemented

8 256 Sweep Complete

This bit is set to 0 when the command :INITiate[:IMMediate] is sent to trigger a sweep. It will have a value of 1 when the sweep has completed.

9 512 I/Q Capture

This bit indicates whether the instrument is currently capturing I/Q data. It is set to 1 when the MEAS:IQ:CAPT command is issued. This bit will be set to 0 when the capture is completed normally (in block mode), or is aborted, either due to the ABORt command or some other command which invalidates the capture.

10 1024 Not implemented

11 2048 Not implemented

12 4096 Not implemented

13 8192 Not implemented

14 16384 Not implemented

15 0 Will always be 0

Trace Detector Type

Sets the detection method for the specific trace. The detection type determines how the display point is derived from its associated measurements. POSitive Peak detection displays the maximum value of the associated measurements. RMS detection displays the average power of the associated measurements. NEGative Peak detection displays the minimum value of the associated measurements. SAMPle detection selects one of the associated measurement points to display. This command will be ignored when spectrogram is enabled by DISPlay:VIEW. In zero span and RTSA mode the SAMPle detection replaces RMS detection.

<POSitive|RMS|NEGative|SAMPle>

POS|RMS|NEG|SAMP

1-6, Default = 1

POSitive

Trace Display State

The trace visibility state. If it is OFF, the :TRAC:DATA? command will return nan.

<0 | 1 | ON | OFF>

0 | 1

1-6, Default = 1

ON

Spectrogram Elapsed

Provides the index and time values for the specified trace based on which trace from the spectrogram history it represents.

1-6, Default = 1

Spectrogram Trace Position

The command sets the spectrogram history index that specific trace referencing to.

<numeric_value>

Numeric

1-6, Default = 1

0

0 to 600

Spectrogram Trace Time

The command select the spectrogram history trace base on elapsed time from the newest trace.

<numeric_value>

Numeric (ms)

1-6, Default = 1

0 ms

ms

0 ms to 100000000 ms

Trace Sweep Count

The trace sweep count returns current sweep count which can be useful for multiple-sweep measurements like average and min/max hold.

Numeric

1-6, Default = 1

0

0 to 4000000000

Trace Type

Specifies how successive sweeps are combined to produce the resulting display value. Setting the TYPE to NORMal will cause the displayed value for a point to be the current measured value for that point. Setting the TYPE to AVERage will cause the displayed value for a point to be the average of the last <integer> measured values where <integer> is set by [:SENSe]:AVERage:COUNt. Setting the TYPE to MAXimum will cause the displayed value for a point is the maximum measured value for that point over sweeps. Setting the TYPE to MINimum will cause the displayed value for a point is the minimum measured value for that point over sweeps.Setting the TYPE to RMAXimum will cause the displayed value for a point to be the maximum of the last <integer> measured values where <integer> is set by [:SENSe]:AVERage:COUNt.Setting the TYPE to RMINimum will cause the displayed value for a point to be the minimum of the last <integer> measured values where <integer> is set by [:SENSe]:AVERage:COUNt. This command will be ignored when spectrogram is enabled by DISPlay:VIEW.

<NORMal|MINimum|MAXimum|AVERage|RMAXimum|RMINimum|RAVerage>

NORM|MIN|MAX|AVER|RMAX|RMIN|RAV

1-6, Default = 1

NORMal

Trace Update State

The trace update state detemine whether the trace is update in every sweep.

<0 | 1 | ON | OFF>

0 | 1

1-6, Default = 1

ON

Trace Clear

This command clears the trace's history and current sweep data. Trace history refers to the previous trace data used to calculate trace types such as min/max hold and averaging.

<numeric_value>

All Traces Clear

This command clears the trace history and current sweep data for all traces. Trace history refers to the previous data used to calculate trace types such as min/max hold and averaging.

Trace Data

This command transfers trace data from the instrument to the controller. Data is transferred from the instrument as an IEEE definite length arbitrary block response, which has the form <header><block>.

This command takes a single integer parameter specifying the trace number to transfer. If the parameter value is out of the range of valid trace numbers, the first trace (1) will be transferred. The binary block header specifies the number of data bytes. It looks like #AX, where A is the number of digits in X and X is the number of bytes in the <block>.

The first character is the literal ascii hash '#' 043.

The second character (A) is a single ascii digit '1' to '9' describing the number of bytes in the length section (X). This number is called nlength.

The next nlength bytes make up an ascii string of digits '1' to '9' describing the length of the <block> data.

For example, if the first 6 bytes are #49999, then the nlength is 4. The 4 bytes of length are 9999. After that follows the <block>, which would be 9999 bytes in size.

The format of the block data depends on the current data format setting (FORMat[:TRACe][:DATA]). The number of amplitudes returned is equal to the current number of display points (DISPlay:POINtcount).

The query command will return a #0 if data is invalid for the active trace.

<numeric_value>

Trace Data All

This command transfers trace data from the instrument to the controller for all traces with display state ON (see Trace Display State commands). The traces are returned back to back with no delimiter between traces using the same IEEE definite length arbitrary block response of the Trace Data command. However, after the usual header this command includes additional header information to support parsing the following data. This additional header consists of a two byte integer indicating the number of display points per trace as well as a two byte trace flags value. The bits in the two byte trace flags value are mapped to a trace number and indicate whether that trace is included in the following data. Bit 0 is the least significant bit and is unused. Bits 1 through N are mapped to traces 1 through N. If the bit value is 1, the trace data for that trace is included in the following data. If the bit value is 0, the trace data for that trace is not included in the following data. For example, a trace flags value of 0x4C indicates that trace data for traces 2, 3, and 6 are included in the following data. The traces are returned in increasing order. The format of the data follows the Trace Data Format setting.

Preset All Trace

This command preset all traces which turn Traces 2-6 off and set Trace 1 to Clear/Write, Active, Peak Detector.

Select Trace

The selected trace will be used by operations that use a single trace. The max number of traces available to select is model specific.

To display the trace, see TRACe<n>:DISPlay[:STATe]

To update the trace state, see TRACe<n>:UPDate[:STATe]

<numeric_value>

Numeric

1

1 to 6

Spectrogram Detector Type

Sets the detection method for the spectrogram trace. The detection type determines how the display point is derived from its associated measurements. POSitive Peak detection displays the maximum value of the associated measurements. RMS detection displays the average power of the associated measurements. NEGative Peak detection displays the minimum value of the associated measurements. SAMPle detection selects one of the associated measurement points to display. This command will be ignored when spectrogram is disabled by DISPlay:VIEW. In RTSA mode the SAMPle detection replaces RMS detection.

<POSitive|RMS|NEGative|SAMPle>

POS|RMS|NEG|SAMP

POSitive

Spectrogram Trace Type

Specifies how successive sweeps are combined to produce the resulting display value. Setting the TYPE to NORMal will cause the displayed value for a point to be the current measured value for that point. Setting the TYPE to AVERage will cause the displayed value for a point to be the average of the last <integer> measured values where <integer> is set by [:SENSe]:AVERage:COUNt. Setting the TYPE to MAXimum will cause the displayed value for a point is the maximum measured value for that point over sweeps. Setting the TYPE to MINimum will cause the displayed value for a point is the minimum measured value for that point over sweeps.Setting the TYPE to RMAXimum will cause the displayed value for a point to be the maximum of the last <integer> measured values where <integer> is set by [:SENSe]:AVERage:COUNt.Setting the TYPE to RMINimum will cause the displayed value for a point to be the minimum of the last <integer> measured values where <integer> is set by [:SENSe]:AVERage:COUNt. This command will be ignored when spectrogram is disabled by DISPlay:VIEW.

<NORMal|MINimum|MAXimum|AVERage|RMAXimum|RMINimum|RAVerage>

NORM|MIN|MAX|AVER|RMAX|RMIN|RAV

NORMal

Trace Status

This command returns a response of the same format as a valid TRACe[:DATA] response, except that instead of amplitude, each comma-delimited value is a decimal integer representing the bitwise-OR of one or more status bits. Each bit of the integer is set according to the table below to indicate that the corresponding trace point has the indicated status:

OkStatus = 0x0

ADCOverrange = 0x1

Saturation = 0x2

SLOLockFailure = 0x4

LO1LockFailure = 0x8

LO2LockFailure = 0x10

TGLOLockFailure = 0x20

LimitFailure = 0x40

OverpowerFailure = 0x1000

DeviceAccessFailure = 0x10000 Failed to communicate with the device.

EPROMFailure = 0x20000 Failed to access device EEPROM.

DataTransIrregular = 0x40000 Data transfer irregular.

NoCalibration = 0x80000 Data is not calibrated.

<numeric_value>

Trigger Auto Period

The trigger auto period is the amount of time that must pass without an trigger event before a measurement is triggered automatically.

<numeric_value> {PS | NS | US | MS | S | MIN | HR}

Numeric (ms)

1000 ms

ms

0.001 ms to 5000 ms

Trigger Auto State

The trigger auto state indicates whether or not a measurement should be triggered automatically after the Trigger Auto Period elapses.

<0 | 1 | ON | OFF>

0 | 1

OFF

Trigger Delay

The trigger delay is the amount of time between when an external trigger event happens and when the measurement starts.

<numeric_value> {PS | NS | US | MS | S | MIN | HR}

Numeric (ms)

0 ms

ms

-1000 ms to 1670 ms

Trigger Delay State

The trigger delay state turns trigger delay on/off.

<0 | 1 | ON | OFF>

0 | 1

OFF

Trigger Holdoff

The trigger holdoff is the amount of time between when a measurement ends and when to start looking for the next external trigger event.

<numeric_value> {PS | NS | US | MS | S | MIN | HR}

Numeric (ms)

0 ms

ms

0 ms to 5000 ms

Trigger Holdoff State

The trigger holdoff state turns trigger holdoff on/off.

<0 | 1 | ON | OFF>

0 | 1

OFF

Trigger Slope

The trigger slope indicates whether the trigger point is on the rising or the falling edge of the external trigger signal.

<POSitive|NEGative|ANY>

POS|NEG|ANY

POSitive

Trigger Source

The trigger source indicates whether or not to look for a trigger condition before making measurements. VIDeo trigger is only valid for zero span operation. Values with a number in them are only available on instruments with more than one trigger port.

<EXT|EXT1|EXT2|IMMediate|VIDeo>

EXT|EXT1|EXT2|IMM|VID

IMMediate

Trigger Video Hysteresis

A relative amplitude value in dBm centered around the video trigger level which the input signal must cross for a trigger event to occur when trigger source is set to video (TRIG:SOUR VID).

<numeric_value> {DB}

Numeric (dB)

0 dB

dB

0 dB to 200 dB

Trigger Video Level

The amplitude value in dBm which the input signal must cross for a trigger event to occur when trigger source is video (TRIG:SOUR VID).

<numeric_value> {DBM}

Numeric (dBm)

0 dBm

dBm

-150 dBm to 30 dBm

Power Spectral Density Units

Sets the power spectral density units to be either dbm/Hz or dbm/MHz

<DBMHz|DBMMhz>

DBMH|DBMM

DBMHz

Measurement Units

Sets the default amplitude units for input, output and display.

<DBM>

DBM

DBM