Envelope Tracking

Applies to M9484C only.

Overview

Supported Channel Configuration and License Requirements

How to Set Up Hardware for Envelope Tracking

How to Configure and Use Envelope Tracking

SCPI and GUI Settings Descriptions for Envelope Tracking

Overview

Envelope Tracking generates an Envelope Tracking (ET) waveform from an RF waveform so you can play the RF signal from the RF output while simultaneously playing the ET waveform from the IQ output. During playback, you can apply a Shaping Table to the ET waveform to dynamically adjust the envelope characteristics in real time.

The Envelope Tracking feature supports the following capabilities:

Generate envelope waveform from RF waveform: You can also use PathWave Signal Generation embedded apps and Signal Studio waveforms (.WFM) files as RF waveform.

Apply Real-Time Shaping Table: Envelope waveform is updated in real-time based on RF output power.

Real-Time RF/Envelope timing adjustment: Adjust timing with sub-pico seconds resolution.

Envelope Tracking is available only in Group 1, Signal 1 (Independent configuration).

Supported Channel Configuration and License Requirements

Envelope Tracking supports the following channel configuration depending on the type of signal generator being used.

Configuration

Description

License Requirements

Multi-Channel Configuration

The ET waveform can be played through Channel 1, while the RF waveform is played through Channel 2.

This setup allows independent control and analysis of the ET and RF signals.

Requires Options AN1, DIQ, and PCH

How to Set Up Hardware for Envelope Tracking

For 2-Channel Setup (ET waveform through IQ ports on Channel 1 and RF waveform through Channel 2)

How to Configure and Use Envelope Tracking

Configure channels in the Independent configuration.
Configure the RF Waveform.
1. In Group 2 > Signal 1 > General tab, select the RF Waveform.
2. In Group 2 > Signal 1 > Trigger tab:
  1. Set Trigger Source to Global Trigger (Immediate as source).
  2. Perform Sync Alignment if required
  3. Set Trigger Delay to 10ms. This allows you to set negative envelope delay up to -10ms.
  4. Set RF Power.
  5. Enable the RF signal on Channel 2.
Configure and generate the envelope.
1. In Group1 > Signal 1> General tab, set the Mode to Envelope Tracking.
  
  If Envelope Tracking mode is not available:
  - Verify the required licenses are installed.
  - Ensure Envelope Tracking is configured on Group 1, Signal 1.
2. In the Envelope Waveform tab, set Envelope File to one of the following:
  - Generate from Signal - To derive the envelope from the RF waveform.
  - User Defined - To browse and select your own envelope waveform file.
3. Adjust the Oversampling Ratio (OSR), as needed.
4. In the Envelope Tracking tab, set the Envelope Output according to your Envelope Tracking channel configuration. This determines how the envelope is routed to the IQ Output ports and how it aligns with the RF path(s).
5. In the Envelope Tracking tab, click Generate to create the Intermediate File as per the option you set for the envelope File. Alternatively, you can select an existing intermediate file.
  
  Envelope Tracking requires a valid Intermediate File before the ET signal can be enabled.
Adjust Voltage Settings.
1. In Group1 > Signal 1 > ETPS Config tab, configure the PA input, ETPS Input, and ETPS Output settings. These settings control how the envelope interacts with the Envelope Tracking Power Supply and the power amplifier.
2. In the Shaping Table tab, enable and configure the shaping table settings if you want to apply a shaping table to the ET waveform. Use Import to load a shaping table file.
Enable the ET signal in Group 1> Signal 1 > General tab to output the envelope on IQ Out Q.
In Group1 > Signal 1 > Envelope Waveform tab, adjust Envelope Delay to align RF and ET timing. Example: If RF Envelope difference is 3.19 ms, set Envelope Delay to –3.19 ms.

SCPI and GUI Settings Descriptions for Envelope Tracking

Envelope Tracking

Envelope Output

Sets the envelope tracking output.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > Envelope Tracking tab > Envelope Output
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope:OUTPut Q2 [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope:OUTPut?
SCPI Example	:GRO:SIGN:ENV:OUTP Q2 :GRO:SIGN:ENV:OUTP?
Preset	Multi-channel: Q (RF 2)
State Saved	Yes
Range	Q (RF2)
Notes	Q (RF 2) is used for multi-channel ET. In this mode, the ET signal is provided from the IQ Output port on Channel 1, while the RF signal is provided from Channel 2.
Initial S/W Revision	A.19.01

Intermediate File

Sets the intermediate envelope waveform file. This file is in the .WFM format.

The intermediate file must be loaded or generated before enabling the Envelope Tracking mode.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > Envelope Tracking tab > Intermediate File
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope:FILE <string> [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope:FILE?
SCPI Example	:GRO:SIGN:ENV:FILE "ETSNVWFM:myWaveform_ET" :GRO:SIGN:ENV:FILE?
Preset	""
State Saved	Yes
Notes	The product of the number of envelope samples and envelope sample rate must be equal to that of the RF waveform samples and RF waveform sample rate.
Initial S/W Revision	A.19.01

Generate

Generates an intermediate envelope waveform file from the envelope waveform specified in the Envelope Waveform tab. The generated waveform file is in .WFM file format which requires N7655APPC license to playback, and is stored in the <document>\Keysight\PathWave\SignalGenerator\EnvelopeTracking\Waveforms directory. There is no query form for the command.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > Envelope Tracking tab > Generate
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope:GENerate
SCPI Example	:GRO:SIGN:ENV:GEN
StateSaved	No
Initial S/W Revision	A.19.01

Sample Rate

Query only. Returns the sample rate of the intermediate file.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > Envelope Tracking tab > Sample Rate
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope:FILE:SCLock:RATE?
SCPI Example	:GRO:SIGN:ENV:FILE:SCL:RATE?
state Saved	No
Initial S/W Revision	A.19.01

Scale

Sets the scale factor of the intermediate file, in percent.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > Envelope Tracking tab > Scale
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope:SCALe <real> [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope:SCALe?
SCPI Example	GRO:SIGN:ENV:SCAL 85 GRO:SIGN:ENV:SCAL?
Preset	90
Min	1
Max	100
Resolution	0.01
State Saved	Yes
Initial S/W Revision	A.19.01

Envelope Waveform

Envelope File

Sets the envelope tracking file option.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > Envelope Waveform tab > Envelope File
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:FILE:SOURce SIGNal\|USER [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:FILE:SOURce?
SCPI Example	:GRO:SIGN:ENV:FILE:SOUR SIGN :GRO:SIGN:ENV:FILE:SOUR?
Preset	Generate from Signal
Range	Generate from Signal \|User Defined
State Saved	Yes
Initial S/W Revision	A.19.01

User Defined Envelope File

Sets the envelope file. Waveform files can be of type .wfm, .csv, .txt, .wiq, .bin, or .mat. The envelope data must be in complex format. All I values are applied to the envelope, while all Q values are expected to be zero.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > Envelope Waveform tab > Envelope File set to User Defined > Click the > button
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:FILE:USER <string> [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:FILE:USER?
SCPI Example	:GRO:SIGN:ENV:FILE:USER "ETNVCSVWFM :myWaveform_ET" :GRO:SIGN:ENV:FILE:USER?
Preset	""
State Saved	Yes
Initial S/W Revision	A.19.01

Base Sample Rate

Query only.

Returns the sample rate of signal in the channel for RF waveform.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > Envelope Waveform tab > Base Sample Rate
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:SCLock:RATE:BASE?
SCPI Example	:GRO:SIGN:ENV:SCL:RATE:BASE?
State Saved	No
Initial S/W Revision	A.19.01

Oversampling Ratio (OSR)

Sets the oversampling ratio for the envelope signal.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > Envelope Waveform tab > OSR
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:OSRatio <value> [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:OSRatio?
SCPI Example	:GRO:SIGN:ENV:OSR 7 :GRO:SIGN:ENV:OSR?
Coupling	When Base Sample Rate is changed, the value becomes 1.
Preset	1
Min	1
Max	floor (Max Sample Rate / Base Sample Rate)
Resolution	1
State Saved	Yes
Initial S/W Revision	A.19.01

Target Sample Rate

Query only.

Returns the target sample rate which is calculated as: Base Sample Rate x Oversampling Ratio.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > Envelope Waveform tab > Target Sample Rate
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:SCLock:RATE?
SCPI Example	:GRO:SIGN:ENV:SCL:RATE?
State Saved	Yes
Initial S/W Revision	A.19.01

Envelope Delay

Sets the delay from the envelope signal to RF signal.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > Envelope Waveform tab > Envelope Delay
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:DELay <value> [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:DELay?
SCPI Example	:GRO:SIGN:ENV:DEL 500 ms :GRO:SIGN:ENV:DEL?
Preset	0
Min	-41 s
Max	41 s
State Saved	Yes
Initial S/W Revision	A.19.01

ETPS Config

ETPS (Envelope Tracking Power Supply) modulates the PA supply voltage to track the instantaneous RF envelope. This tab allows you to configure the ETPS settings categorized in the following three sections.

PA Input
ETPS Input
ETPS Output

PA Input > Shaping Table Normalization

Shaping table normalization defines whether the shaping table values are normalized or expressed in absolute voltage.

Vin

Indicates whether or not the Vin is normalized.

When Vin is enabled, the Vin values in the shaping table are assumed to be normalized using the Max Peak Envelope Power (converted to Peak voltage).

GUI Location	Signals > General tab > Mode set to Envelope Tracking > ETPS Config tab > PA Input > Vin
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:ETPS:VIN:NORMalization[:STATe] ON\|OFF\|1\|0 [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:ETPS:VIN:NORMalization[:STATe]?
SCPI Example	:GRO:SIGN:ENV:ETPS:VIN:NORM ON :GRO:SIGN:ENV:ETPS:VIN:NORM?
Preset	ON
State Saved	Yes
Initial S/W Revision	A.19.01

Vout

Indicates whether or not the Vout is normalized.

When Vout is enabled, the Vout values in the shaping table are assumed to be normalized using Vcc Max, with Vcc Min considered the minimum voltage of Vout.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > ETPS Config tab > PA Input > Vout
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:ETPS:VOUT:NORMalization:[STATe] ON\|OFF\|1\|0 [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:ETPS:VOUT:NORMalization[:STATe]?
SCPI Example	:GRO:SIGN:ENV:ETPS:VOUT:NORM ON :GRO:SIGN:ENV:ETPS:VOUT:NORM?
Preset	ON
State Saved	Yes
Initial S/W Revision	A.19.01

PA Input > Max Peak Envelope Power

Sets the Max Peak Envelope Power.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > ETPS Config tab > PA Input >Max Peak Envelope Power
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:PEPower:MAXimum <value> [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:PEPower:MAXimum?
SCPI Example	:GRO:SIGN:ENV:PEP:MAX 10 dBm :GRO:SIGN:ENV:PEP:MAX?
Preset	0 dBm
Min	-200 dBm
Max	100 dBm
Resolution	0.01 dBm
State Saved	Yes
Initial S/W Revision	A.19.01

ETPS Input

ETPS Voltage Diagram

Vcm

Sets the common‑mode voltage (Vcm).

GUI Location	Signals > General tab > Mode set to Envelope Tracking > ETPS Config tab > ETPS Input >Vcm
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:ETPS:VCM <voltage> [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:ETPS:VCM?
SCPI Example	:GRO:SIGN:ENV:ETPS:VCM 1.5 V :GRO:SIGN:ENV:ETPS:VCM?
Preset	0 V
Min	-1.5 V
Max	1.5 V
Resolution	0.05 mV
State Saved	Yes
Initial S/W Revision	A.19.01

ETPS Gain

Sets the ETPS Gain.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > ETPS Config tab > ETPS Input >ETPS Gain
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:ETPS:GAIN <rel_ampl> [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:ETPS:GAIN?
SCPI Example	:GRO:SIGN:ENV:ETPS:GAIN 7 dB :GRO:SIGN:ENV:ETPS:GAIN?
Preset	7 dB
Min	-20 dB
Max	20 dB
Resolution	0.01 dB
State Saved	Yes
Initial S/W Revision	A.19.01

Input Impedance

Sets the input impedance.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > ETPS Config tab > ETPS Input >Input Impedance
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:ETPS:IMPedance <value> [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:ETPS:IMPedance?
SCPI Example	:GRO:SIGN:ENV:ETPS:IMP 10000000 :GRO:SIGN:ENV:ETPS:IMP?
Preset	50 Ohm
Min	50 Ohm
Max	10 000 000 Ohm
Resolution	1 Ohm
State Saved	Yes
Initial S/W Revision	A.19.01

ETPS Output

Vcc Offset

Sets the Vcc offset.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > ETPS Config tab > ETPS Output > Vcc Offset
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:ETPS:VCC:OFFSet <voltage> [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:ETPS:VCC:OFFSet?
SCPI Example	:GRO:SIGN:ENV:ETPS:VCC:OFFS 2.275 V :GRO:SIGN:ENV:ETPS:VCC:OFFS?
Preset	2.75 V
Min	0 V
Max	30 V
Resolution	0.001 V
State Saved	Yes
Initial S/W Revision	A.19.01

Vcc Clipping

Selects whether or not the Vcc is clipped using the Vcc Max and Vcc Min values.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > ETPS Config tab > ETPS Output > Vcc Clipping
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:ETPS:VCC:CLIPping[:STATe] ON\|OFF\|1\|0 [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:ETPS:VCC:CLIPping[:STATe]?
SCPI Example	:GRO:SIGN:ENV:ETPS:VCC:CLIP ON :GRO:SIGN:ENV:ETPS:VCC:CLIP?
Preset	OFF
State Saved	Yes
Initial S/W Revision	A.19.01

Vcc Max

Sets the maximum value of Vcc when Vcc Clipping is On.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > ETPS Config tab > ETPS Output > Vcc Max
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:ETPS:VCC:CLIPping:MAXimum <voltage> [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:ETPS:VCC:CLIPping:MAXimum?
SCPI Example	:GRO:SIGN:ENV:ETPS:VCC:CLIP:MAX 2.7 :GRO:SIGN:ENV:ETPS:VCC:CLIP:MAX?
Preset	3.8 V
Coupling	When Vcc Min is changed and [Vcc Max] < [Vcc Min] + 0.1 V, Vcc Max is changed to [Vcc Max] = [Vcc Min] + 0.1 V.
Min	0.1 V
Max	8.0 V
Resolution	0.001 V
State Saved	Yes
Initial S/W Revision	A.19.01

Vcc Min

Sets the minimum value of Vcc when Vcc Clipping is On.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > ETPS Config tab > ETPS Output > Vcc Min
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:ETPS:VCC:CLIPping:MINimum <voltage> [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:ETPS:VCC:CLIPping:MINimum?
SCPI Example	:GRO:SIGN:ENV:ETPS:VCC:CLIP:MIN 1.8 :GRO:SIGN:ENV:ETPS:VCC:CLIP:MIN?
Preset	0.6 V
Coupling	When Vcc Max is changed and [Vcc Min] > [Vcc Max] – 0.1 V, Vcc Min (this setting) is changed to [Vcc Min] = [Vcc Max] – 0.1 V.
Min	0 V
Max	7.9 V
Resolution	0.001 V
State Saved	Yes
Initial S/W Revision	A.19.01

Shaping Table

Enable

Turn Shaping Table on and off.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > Shaping Table tab > Enable
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:STABle[:STATe] ON\|OFF\|1\|0 [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:STABle[:STATe]?
SCPI Example	:GRO:SIGN:ENV:STAB ON :GRO:SIGN:ENV:STAB?
Preset	OFF
State Saved	Yes
Initial S/W Revision	A.19.01

Shaping Table Data

Sets Shaping Table Data.

This setting takes the array of real values interleaved by the first and second column values.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > Shaping Table tab > Edit Table
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:STABle:DATA <value>,<value>,… [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:STABle:DATA?
SCPI Example	:GRO:SIGN:ENV:STAB:DATA 0.0, 0.7, 1.0, 3.8 :GRO:SIGN:ENV:STAB:DATA?
Preset	0,0,1,1
Notes	An error is generated when the number of Shaping Data is not a multiple of 2 and the data is not set. Minimum number of elements: 4 Maximum number of elements: 1500
State Saved	Yes
Initial S/W Revision	A.19.01

Import Shaping Table

Imports the shaping table file which is a.csv file containing two columns: Vin and Vout. The first line is a header that labels each column. There is no query form for the command.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > Shaping Table tab > Edit Table > Import
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:STABle:IMPort <string>
SCPI Example	:GRO:SIGN:ENV:STAB:IMP "ETTBL:myShapingTable"
State Saved	Yes
Initial S/W Revision	A.19.01

Export Shaping Table

Exports the shaping table file to a .csv file. There is no query form for the command.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > Shaping Table tab > Edit Table > Export
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:STABle:EXPort <string>
SCPI Example	:GRO:SIGN:ENV:STAB:EXP "ETTBL:myShapingTable"
State Saved	Yes
Initial S/W Revision	A.19.01

Conversion Input Type

Sets the data type for the input of the shaping table.

Absolute RF Output Voltage (AVOLtage): The Peak Envelope Power (dBm converted to Vpk), derived from RF power and waveform PAPR, is used to determine the Vin range for the shaping table.
Override RF Amplitude (OARF): A user-specified RF amplitude (and waveform PAPR) is used to determine the Vin range for the shaping table.
Normalized I/Q Amplitude (NORMalized): Regardless of the RF power setting, the full Vin range of the shaping table is used.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > Shaping Table tab > Conversion Input Type
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:CONVersion:TYPE AVOLtage\|OARF\|NORMalized [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:CONVersion:TYPE?
SCPI Example	:GRO:SIGN:ENV:CONV:TYPE NORM :GRO:SIGN:ENV:CONV:TYPE?
Preset	AVOLtage
State Saved	Yes
Range	Absolute RF Output Voltage\|Override RF Amplitude\|Normalized
Initial S/W Revision	A.19.01

Override RF Amplitude

Sets the RF Power value used to scale the input of the shaping table when Conversion Input Type is Override Absolute RF.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > Shaping Table tab > Conversion Input Type set to Override Absolute RF > Override RF Amplitude
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:CONVersion:AMPLitude <value> [:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:CONVersion:AMPLitude
SCPI Example	:GRO:SIGN:ENV:CONV:AMPL 10 dBm :GRO:SIGN:ENV:CONV:AMPL?
Preset	-100 dBm
Min	-200 dBm
Max	100 dBm
Resolution	0.01 dBm
State Saved	Yes
Initial S/W Revision	A.19.01

RF Waveform PAPR

Query only.

Returns PAPR of the RF waveform.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > Shaping Table tab > RF Waveform PAPR
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:RF:PAPR?
SCPI Example	:GRO:SIGN:ENV:RF:PAPR?
Coupling	The value can be calculated using 20log(Peak / RMS) where both Peak and RMS values are derived from the RF waveform.
State Saved	Yes
Initial S/W Revision	A.19.01

Peak Envelope Power (dBm)

Query only.

Returns Peak Envelope Power.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > Shaping Table tab > Peak Envelope Power (dBm)
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:RF:PEPower?
SCPI Example	:GRO:SIGN:ENV:RF:PEPower?
Coupling	The value can be calculated using: Power (Total RMS) + Waveform PAPR in the case of Absolute RF Output Voltage. Override RF Amplitude + Waveform PAPR in the case of Override Absolute RF.
State Saved	Yes
Initial S/W Revision	A.19.01

Vpk from Peak Envelope Power

Query only.

Returns Peak Voltage calculated from Peak Envelope Power.

GUI Location	Signals > General tab > Mode set to Envelope Tracking > Shaping Table tab >Peak Envelope Power (Vpk)
SCPI Command	[:SOURce]:GROup<group>:SIGNal<signal>:ENVelope<channel>:RF:PVOLtage?
SCPI Example	:GRO:SIGN:ENV:RF:PVOLtage?
Coupling	The value is calculated using √2PR where: P is Peak Envelope Power, expressed in linear scale (Watts) R is Signal Generator Output Impedance — typically 50 Ω
State Saved	Yes
Initial S/W Revision	A.19.01