408 Keysight N9915-90020 User’s Guide
Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF
Option 377, 5G NR / 5G NR EVM Conducted Option 378
How to Use Data Logging (OTA Options 370, 372, 377, and 378)
When GPS is enabled, GPS R is indicated at the bottom of the FieldFox
display. Learn more in
“GNSS (GPS+) and GPS” on page 795.
How to Record a Data Log Procedure
—Press Trace 6 > More > Data Logging >
— Then for Outdoor Logging, press
Record
is displayed in the left of screen graticules.
During recording, choose from the following:
—
Pause Resume Temporarily halts recording until pressed again. The
incoming trace continues to sweep. Press again to continue recording. See
also
“How to Play a Data Log” on page 410.
—
Stop Immediately stops recording and opens a menu to name/rename and
save your data log. For more, refer to
“How to use the FieldFox labeler ” on
page 820
.
—
Record Settings (Outdoor Mapping only) opens a softkey menu to enable
you change your record related settings. For more, refer to
“To change Data
Logging Configuration settings:” on page 409
.
—
Recall Save/Recall opens a softkey menu to enable you to save and recall
your data log and related file settings. For more, refer to
“To change Data
Logging Configuration settings:” on page 409
.
Learn more, refer to
Chapter 16 Mapping and “Setting up Data Logging” on
page 503
If Data Logging or Playback is not occurring when you think it should,
check the following:
— Is the sweep in HOLD? (upper-left annotation), or check the Sweep
menu for Continuous set to OFF.
— Is Recording or Playback Paused? (mid-left annotation)
— Is the Data Logging or Playback Interval set too long? (Configuration
settings.)
Data Log-Play files are saved to:
— If File Folder is set to Default then Data Log-Play files are save-recalled
to: "[CurrentDevice]\RecordPlayback\OTA"
— If File Folders are set to System, then Data Log-Play files are
save-recalled to: "CurrentDevice\<UserSelectedFolder>\
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