User`s guide
Table Of Contents
- Overview
- Getting Started
- System Setting
- Making Measurements
- Measuring Multiple Signals
- Measuring a Low-Level Signal
- Improving Frequency Resolution and Accuracy
- Making Distortion Measurements
- One-button Power Measurement
- Making a Stimulus Response Transmission Measurement
- Measuring Stop Band Attenuation of a Low-pass Filter
- Making a Reflection Calibration Measurement
- Measuring Return Loss Using the Reflection Calibration Routine
- Making an Average Power Measurement
- Key Reference
- SCPI Command Reference
- Error Messages
- Menu Map
SCPI Command Reference 6
N9340A User’s Guide 155
TRIGer Subsystem
Trigger subsystem is only valid when the analyzer
is in zero span.
External Trigger Slope
:TRIGer[:SEQuence]:EXTernal:SLOPe
POSitive|NEGative
:TRIGer[:SEQuence]:EXTernal:SLOPe?
The external trigger signal must be a TTL signal at
0 V to 5 V. This function controls the trigger
polarity (for positive or negative- going signals).
Trigg er Source
:TRIGer[:SEQuence]:SOURce
IMMediate|VIDeo|EXTernal
:TRIGer[:SEQuence]:SOURce?
This command sets the source (or type) of
triggering used to start a measurement.
• Immediate is free- run triggering.
• Video triggers on the video signal level.
• External allows you to connect an external
trigger source.
Video Trigger Level Amplitude
:TRIGer[:SEQuence]:VIDeo:LEVel <ampl>
:TRIGer[:SEQuence]:VIDeo:LEVe?
This command specifies the video trigger level.
*RST state: Positive
*RST state: Immediate (free-run triggering)
Key access: [Span] > {Trigger}
*RST Value: 0.00 dBm
Key Access: [Span] > {Trigger}