User Manual
Table Of Contents
- PSA Spectrum Analyzers User's and Programmer's Reference
- Table of Contents
- List of Commands
- 1 Using This Document
- 2 Instrument Functions: A - L
- 3 Instrument Functions: M - O
- 4 Instrument Functions: P - Z
- 4.1 Peak Search
- 4.2 Preset
- 4.3 Print
- 4.4 Print Setup
- 4.5 Save
- 4.6 SPAN / X Scale
- 4.7 SWEEP
- 4.8 System
- 4.8.1 Show Errors
- 4.8.2 Power On/Preset
- 4.8.3 Time/Date
- 4.8.4 Alignments
- 4.8.5 Config I/O
- 4.8.6 Reference
- 4.8.7 Show System
- 4.8.8 Show Hdwr
- 4.8.9 Color Palette
- 4.8.10 Diagnostics
- 4.8.11 Restore Sys Defaults
- 4.8.12 Licensing
- 4.8.13 Personality
- 4.8.14 Service
- 4.8.15 Keyboard Lock (Remote Command Only)
- 4.8.16 Remote Message
- 4.8.17 Remote Message Turned Off
- 4.8.18 Power On Elapsed Time (Remote Command Only)
- 4.8.19 SCPI Version Query (Remote Command Only)
- 4.9 Trace/View
- 4.10 Trig
- 5 One-Button Measurement Functions
- 5.1 MEASURE (Spectrum Analysis Mode)
- 5.1.1 Command Interactions: MEASure, CONFigure, FETCh, INITiate and READ
- 5.1.2 Meas Off
- 5.1.3 Channel Power
- 5.1.4 Occupied BW
- 5.1.5 Adjacent Channel Power—ACP
- 5.1.6 Multi-Carrier Power
- 5.1.7 Power Stat CCDF
- 5.1.8 Harmonic Distortion
- 5.1.9 Burst Power
- 5.1.10 Intermod (TOI)
- 5.1.11 Spurious Emissions
- 5.1.12 Spectrum Emission Mask
- 5.1.13 Current Measurement Query (Remote Command Only)
- 5.2 Meas Control
- 5.3 Mode Setup
- 5.4 Restart
- 5.5 Single
- 5.6 Meas Setup (Adjacent Channel Power—ACP)
- 5.7 Trace/View (ACP Measurement)
- 5.8 Meas Setup (Burst Power)
- 5.9 Trace/View (Burst Power)
- 5.10 Meas Setup (ComplementaryCumulativeDistributionFunction—CCDF)
- 5.11 Display (ComplementaryCumulativeDistributionFunction—CCDF)
- 5.12 SPAN X Scale
- 5.13 Marker (ComplementaryCumulativeDistributionFunction—CCDF)
- 5.14 Meas Setup (Channel Power—CHP)
- 5.15 Trace/View (Channel Power Measurement)
- 5.16 Meas Setup (Harmonic Distortion)
- 5.17 Trace/View (Harmonics)
- 5.18 Meas Setup (Intermod (TOI))
- 5.19 Meas Setup (Multi-Carrier Power—MCP)
- 5.20 Trace/View (Multi-Carrier Power Measurement)
- 5.21 Meas Setup (Occupied Bandwidth—OBW)
- 5.22 Meas Setup (Spectrum Emissions Mask—SEM)
- 5.23 Trace/View (Spectrum Emissions Mask)
- 5.24 Display (Spectrum Emissions Mask—SEM)
- 5.25 SPAN X Scale
- 5.26 Marker (Spectrum Emissions Mask—SEM)
- 5.27 Meas Setup (Spurious Emissions)
- One - Button Measurement Functions
- 5.1 MEASURE (Spectrum Analysis Mode)
- 6 Programming Fundamentals
- SCPI Language Basics
- Improving Measurement Speed
- Turn off the display updates.
- Use binary data format instead of ASCII
- Minimize the number of GPIB transactions.
- Avoid unnecessary use of *RST.
- Put ADC Ranging in Bypass for FFT Measurements
- Minimize DUT/instrument setup changes.
- Consider using LAN instead of GPIB.
- Using an Option Mode: Minimize the number of GPIB transactions.
- Using an Option Mode: Avoid automatic attenuator setting.
- Using an Option Mode: Optimize your GSM output RF spectrum switching measurement.
- Using an Option Mode: Avoid using RFBurst trigger for single burst signals.
- Using an Option Mode: When making power measurements on multiple bursts or slots, use CALCulate:D...
- Programming Command Compatibility Across Model Numbers and Across Modes
- Using the LAN to Control the Instrument
- Programming in C Using the VTL
- Overview of the GPIB Bus
- 7 Using the STATus System
- 8 Menu Maps: Spectrum Analysis
- Alpha Editor Keys, 1 of 2
- AMPLITUDE Y Scale Key, 1 of 2 (
- Auto Couple Key, 1 of 3 (
- BW/Avg Key (
- Det/Demod Key (
- Display Key, 1 of 2 (
- File Key, 1 of 6 (
- FREQUENCY Channel Key (
- Input/Output Key (
- Marker Key (
- menu map:marker to;marker to:menu map
- Marker Fctn Key (
- MODE Key (
- Peak Search Key (
- Preset Key (
- Print Setup Key (
- SPAN X Scale Key (
- SPAN X Scale Key for CCDF Measurement (
- Sweep Key (
- System Key, 1 of 4 (
- Trace/View Key (
- Trig Key (
- 9 Menu Maps: One-Button Measurement Functions
- One-Button Measurement Menu Maps
- MEASURE Key
- Meas Control Key
- Mode Setup Key
- Mode Setup Key (2 of 2)
- ACP Measurement: Meas Setup Key
- ACP Measurement: Trace/View Key
- Burst Power Measurement: Meas Setup Key
- Burst Power Measurement: Trace/View Key
- CCDF (Power Stat) Measurement: Meas Setup Key
- CCDF (Power Stat) Measurement: Trace/View Key
- CCDF (Power Stat) Measurement: Display Key
- CCDF (Power Stat) Measurement: Span X Scale Key
- CCDF (Power Stat) Measurement: Marker Key
- Channel Power Measurement: Meas Setup Key
- Channel Power Measurement: Trace/View Key
- Harmonic Distortion Measurement: Meas Setup Key
- Harmonic Distortion Measurement: Trace/View Key
- Intermod (TOI): Meas Setup Key
- Multi-Carrier Power Measurement: Meas Setup Key
- Multi-Carrier Power Measurement: Trace/View Key
- Occupied Bandwidth Measurement: Meas Setup Key
- Spectrum Emission Mask Measurement: Meas Setup Key
- Spectrum Emission Mask Measurement: Trace/View Key
- Spectrum Emission Mask Measurement: Display Key
- Spectrum Emission Mask Measurement: Span X Scale Key
- Spectrum Emission Mask Measurement: Marker Key
- Spurious Emissions Measurement: Meas Setup Key
- One-Button Measurement Menu Maps
- Index

Chapter 4 291
Instrument Functions: P - Z
Trig
Instrument Functions: P - Z
Example: TRIG:DEL:STAT ON
TRIG:DEL 100 ms
4.10.9 Trig Offset (Remote Command Only)
This command sets the trigger offset. Trigger offset refers to the specified time interval
before or after the trigger event from which data is to be written to the trace, and then
displayed. Ordinarily, the trigger offset value is zero, and trace data is displayed beginning
at the trigger event. A negative trigger offset value results in the display of trace data prior
to the trigger event. A positive trigger offset value results in an effective delay in the
display of trace data after the trigger event.
The trigger offset value used when the feature is enabled will depend on the following
parameters:
• Nominal trigger offset value originally entered
• Specific instrument hardware in use
• Sweep time
• Number of sweep points
The effective trigger offset value will be re-calculated whenever any of these parameters
change.
State Saved: Saved in instrument state.
Factory Preset: 0 s
Range: Hardware specific; dependent upon the ADC being used, current state and
the number of sweep points.
History: Added with firmware revision A.02.00
Remote Command:
:TRIGger[:SEQuence]:OFFSet <time>
:TRIGger[:SEQuence]:OFFSet?
:TRIGger[:SEQuence]:OFFSet:STATe OFF|ON|0|1
:TRIGger[:SEQuence]:OFFSet:STATe?
Remote Command Notes: Trigger offset can only be turned on when in zero span and the
resolution bandwidth is 1 kHz or greater (non-digital bandwidths). Trigger
offset is available for all trigger modes.
Example: TRIG:OFFS 100 ms
TRIG:OFFS:STAT ON turns on the trigger offset.