LTE FDD/TDD Signal Analyzer Measurement Guide : LTE Analyzer (Option 883) : Presetting the Analyzer
 
Presetting the Analyzer
The PRESET menu sets certain settings to the default state. Preset only affects the current analyzer settings, such as those for the spectrum analyzer or for the LTE analyzer. Preset does not affect user files or system settings such as networking settings. For other reset options, such as a complete factory reset of the instrument, refer to “Reset Settings” the Instrument Overview chapter of the user guide. To recover from system software faults, refer to Appendix A, “Instrument Messages and Troubleshooting” chapter of the instrument user guide.
PRESET Menu
 
PRESET Menu
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PRESET MARKERS
Presets all values on the MARKER menu to default values. Not available in LTE Demod Summary measurement.
PRESET SETUP
Presets all values on the SETUP menu to default values.
PRESET MODE
Presets all of the current analyzer settings to default values.
Saving and Recalling Measurements
The instrument can save measurement setups, native trace and CSV trace data, limit line setups, and screenshots. You can recall setup, native trace, and limit line files. For other file operations such as copy, move, and directory management, refer to “File Management” section in Instrument Overview chapter of the instrument user guide.
Saving a Measurement
To save a measurement or setup, refer to Figure: File Save Dialog:
1. Press FILE > SAVE AS...
2. If desired, press the save location to change the destination.
3. Enter the desired file name using the touchscreen keyboard.
4. Select the type of file to save from the selection list.
5. Press SAVE to save the file.
File Save Dialog
Once a file has been saved, the QUICK SAVE feature can be used to quickly save the same type of file with an incrementing number appended to the end of the original file name.
Recalling a Measurement
You can recall a saved setup, native trace measurement, and a limit line. When recalling a setup, the instrument setup and operating state will be restored as it was when the setup was saved. When recalling a trace measurement, the instrument setup and on-screen measurement data will be restored as it was when the trace data was saved.
To recall a measurement or setup, refer to Figure: File Open Dialog:
1. Press FILE > RECALL...
2. Select the file location.
3. Use the file type filter to shorten the list if needed.
4. Select the desired file from the displayed list.
5. Press OPEN to recall the file.
File Open Dialog
When a measurement is recalled, the trace or sweep state will be set to hold. To restore active measurements, disable SWEEP > HOLD and/or set TRACE > MODE > Active.
FILE Menu
 
FILE Menu
 
QUICK SAVE
saves a setup file immediately with the name shown in the button. The number in the name is incremented automatically so that the new name is ready for the next setup file to be saved.
SAVE AS
Opens the Save dialog to manually enter a file location, enter a file name, and to set the file type to be saved. Depending on the selected measurement, you can save the following:
• Setup: Saves the current instrument setup (stp file type).
• Trace: Saves the measurement point (trace) data and the current instrument setup (fmlte and fmspa file type).
• Trace CSV: Saves the visible trace point data in comma separated value format (csv file type). This format is useful for further analysis using other software tools.
• Screenshot: Saves a screenshot of the current measurement (png file type).
• Trace + Screenshot: Saves both the current measurement and screenshot files (both fmlte and png file types).
• KML: Saves measurement data in Keyhole Markup Language format, including the instrument model number, installed options, sample data with GNSS (GPS) coordinates, if GNSS (GPS) Option 31 is installed. (Option 431, Coverage Mapping only (Outdoor Map)). Note that the saved data is cumulative of all data points on the map or measurements since the map points were last cleared.
RECALL
Opens the Recall File dialog to retrieve a file from a desired location.
LTE CSV LOGGING
LTE CAPTURE
Initiates a digitized LTE data capture at the selected bandwidth. LTE captures are saved to the internal storage space in the captures folder (bin file type). This feature is meant to help identify LTE signal characteristics during early development.
CAPTURE SYNC FAIL
Automatically initiates a digitized LTE data capture when synchronization fails. The setting can be configured to capture just a single event or repeat events. LTE captures are saved to the internal storage space.
BROWSE FILES
Refer to “File Management” section of Instrument Overview chapter of the user guide.
LTE CSV LOGGING Menu
LTE CSV Logging Menu
 
RECORD
Records the LTE measurement data and saves it as a CSV file.
STOP
Stops recording of the CSV logging of the LTE measurement data.
STORAGE DEVICE
Selects the storage device to store the LTE CSV file.