270 Keysight N9927-90001 User’s Guide
IQ Analyzer (IQA) – Option 351 (CPU2 Only)
I/Q Analyzer (IQA) Mode Settings
——Then depending on the trigger type selected, choose from the
following:
Trig Level
– Sets the trigger level. This softkey is only active for
Video or RF Burst (default: –25 dBm, minimum: –210 dBm,
maximum: 30 dBm).
Trig Slope
– Sets the negative/positive trigger slope. This
softkey is only active for External, Video, or RF Burst (default:
Pos).
Trig Delay
– Sets the trigger delay. This softkey is only active
for External, Video, or RF Burst (default: 0s, minimum:
–150 ms, maximum: 500 ms).
Glitch Mask
– Enables the glitch mask to reduce incorrect
triggering due to fast changes/glitches in the signal level that
can be mistaken to be the edge of the RF burst. This softkey is
only active for RF Burst (default: 0 ms, minimum: 0s,
maximum: 5 ms).
Auto Trigger
– While waiting for a valid trigger signal, Wait is
annotated in the top left corner of the FieldFox screen.
If a valid trigger signal is not received before the specified Auto
Trig Time, a acquisition will occur automatically.
Enter 0 to set Auto Trigger OFF. When Auto Trigger is OFF, the
FieldFox does NOT perform an acquisition unless a valid
trigger signal is received.
(Default: 100 ms, minimum: 1 ms, maximum: 100s)
Adjusting the Measurement Setup Settings
—Press Meas Setup 4.
— Then choose from the following:
— Average Type
Opens a menu of averaging softkeys.
Then select one of the following:
——Power
(Linear) Averaging – Best for measuring true power
levels. Used in Noise Marker Average. Mathematically, trace
noise is 2.5 dB higher than when using Log Average. PAvg
annotation is displayed.
Periodic
Trigger
Periodic sets a trigger that repeats at the period rate
entered. Periodic trigger's phase can be altered by the
Offset value.
Softkey Description
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