Keysight N9915-90020 User’s Guide 551
Interference Analyzer (SA Mode) – Option 236
Record/Playback (SA Option)
— To record only those traces that exceed the limit, set Segment Count to 1
— To record ALL traces after a limit is exceeded, set Segment Count OFF.
When used with Record Time, the timer counts down even when traces are not
being recorded (limits are not being exceeded). Recording starts when a limit is
exceeded and stops when the timer reaches 0.
When used with Record Interval, a trace is recorded when a limit is exceeded,
then no recordings during the specified ‘wait’ interval, then the next trace is
recorded, followed by another time delay, and so forth. This pattern repeats
indefinitely if Segment Count is OFF, or (if ON) until Segment Count is reached.
Frequency Mask Trigger Configuration (SA Mode Only)
Create or recall a Frequency Mask to be used with the FreqMaskTrigger
feature.
A mask that is in use during a recording is NOT saved with the recording and
does NOT automatically appear during playback. Like Limits Lines, it is saved
and recalled with a state file.
Although they are created in the same manner, Limit Line files and FreqMask
files can NOT be used interchangeably.
—Press Trace 6
—Then Record Playback
—Then New Session or Recall an existing session. The current mask appears
as soon as a session is opened.
—Then
FreqMaskTrigger Configuration
— Then choose from the following
— Edit Mask Create or modify the current mask. Learn how to edit the
Mask / Limit Line table in
“All about Limit Lines” on page 749.
—
Save Mask Saves the current mask to a file.
—
Recall Mask Loads a mask file.
Frequency Mask Trigger only applies to SA mode.
The Mask file is saved to, and recalled from, the Save /Recall Storage
Device location – NOT from the Record Playback Storage Device location.
These are two different settings. Learn how to set the Save /Recall Storage
Device in
“Set File Type and Select Device” on page 823.
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