Rf burst – Agilent Technologies Signal Analyzer N9030a User Manual

Page 1412

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6  RLC Swept SA Measurement Front-Panel & SCPI Reference
Trigger

Notes

Video trigger delay may be set to negative values, in time domain, FFT and even swept. It makes
intuitive sense in time domain and works well in FFT mode where the bandwidth of the filter
before the video trigger is about 1.25 span. In swept spans, negative settings of Trig Delay are
treated as a zero setting within the internal hardware and the advisory message "Neg. Trig Delay
unavailable in Swept Mode, zero delay used." is generated when such a delay is set.

Preset

Off, 1.000 us

State Saved

Saved in instrument state

Min

–150 ms

Max

500 ms

Default Unit

s

Backwards Compatibility
Notes

The legacy :TRIGger[:SEQuence]:DELay command affects the delay for the VID, LINE, EXT1,
EXT2, and RFB triggers.

The legacy :TRIGger[:SEQuence]:OFFSet command is supported for the VIDeo, LINE, EXT1, and
EXT2 triggers.

Initial S/W Revision

Prior to A.02.00

RF Burst

Pressing this key, when it is not selected, selects the RF Burst as the trigger. A new
sweep/measurement will start when an RF burst envelope signal is identified from the signal at
the RF Input connector. Pressing this key, when it is already selected, accesses the RF Burst
trigger setup menu.

In some models, a variety of burst trigger circuitry is available, resulting in various available
burst trigger bandwidths.  The analyzer automatically chooses the appropriate trigger path based
on the hardware configuration and other settings of the analyzer.

Key Path

Trigger

Example

TRIG:SOUR RFB                 Swept SA measurement

TRIG:<meas>:SOUR RFB   Measurements other than Swept SA

State Saved

Saved in instrument state

Status Bits/OPC
dependencies

The Status Operation Register bit 5 "Waiting for Trigger" is set at the same time as the Sweeping
or Measuring bit is set. It is cleared when the trigger actually occurs (that is, after the trigger
event occurs and all the applicable trigger criteria have been met). A corresponding pop-up
message ("Waiting for trigger") is generated if no trigger signal appears after approximately 2
sec. This message goes away when a trigger signal appears.

1412

Remote Language Compatibility Measurement Application Reference

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