Keysight N9927-90001 User’s Guide 315
Interference Analyzer (SA Mode) – Option 236
Record/Playback (SA Option)
Other display settings, such as Scale and acquisition, can also be changed
during recording but are not saved with the session file. Think of these as
settings that help YOU see the recording and playback activity. They do NOT
change the data that is recorded.
During Playback
The State setting changes listed above are NOT allowed during playback.
However, all other display settings can be changed during playback to help
you analyze the recorded data.
In SA mode, when recordings are played back further trace processing is
possible. The Trace State(s) can be modified for post processing, and different
measurements such as Channel Power, Occupied BW, Spectrogram, and
Waterfall can be activated. This is because in SA all these measurements are
derived from the raw traces. If not compatible with the measurement type, a
MEAS UNCAL message will appear on the screen.
Record/Playback Exceptions
— Markers can be activated and moved to help analyze recorded data.
However, marker position control is only available when playback is Paused.
— Field Strength Corrections is saved with the session file and it is also
allowed during playback. Learn about this Field Strength Corrections in
“Field Strength Measurements” on page 156.
— Frequency Counter at Marker is NOT allowed during Recording or Playback.
Learn about this feature in “Frequency Counter at Marker” on page 191.
About State and User Tags
When any of the State settings (listed above) are changed during a recording,
a ‘state tag’ is inserted at the first trace number to be recorded with the new
setting.
In addition, you can insert a ‘User Tag’ at any time during a recording session
to indicate an external event, such as when an antenna is moved. During
playback, you can move quickly to any of these tags, or scroll through these
tags.
A symbol is used on the screen annotation to distinguish a User Tag from a
State Tag when scrolling through tags during playback.
Screen Annotation
During a record or playback session, the following is displayed in the top-left
area of the screen:
— AutoSession02: 92/95 (state 4/5)_*_
Sep.22.2018 09:15:15 AM
where:
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