Chapter 9 System Settings

In this Chapter

See Also:

RUN/Hold

The Run/Hold key determines whether the FieldFox sweeps continuously or does NOT sweep, but holds the display results of the last sweep that was performed.

Use Hold to conserve battery power or to allow you to save or analyze the results of a specific measurement sweep.

The current sweep mode is shown on the screen as:

•  Continuous
•  Hold  
•  is displayed while a single sweep occurs.

How to perform a single sweep while in Hold

1. Press Sweep 3.
2. Then choose one of the following:

• Single Automatically sets Continuous OFF (Hold) and causes FieldFox to make ONE measurement sweep, then hold for the next Single key press.
• SA Mode ONLY – With Continuous OFF each successive Run/Hold press also causes a single sweep.
• Continuous ON OFF Makes continuous sweeps. This is the typical setting when battery power is not critical.

Preset

The Preset key restores the FieldFox measurement settings to a known condition. You can preset the entire instrument, or just the current Mode (CAT, SA, and so forth).

When Preset, the FieldFox CalReady calibration is recalled for use in CAT and NA Modes. Learn more in “CalReady”.

In addition to all Preference settings, the following settings always survive Preset and Mode Preset:

• External Reference state (see “Frequency Reference Source”)
• SA Scale and Units (see “Scale and Units”)
• SA Correction states (see “Field Strength Measurements”)
• VVM Display Resolution (see “Display Resolution” in Chapter 25 VVM (Vector Voltmeter) Mode - Option 308 chapter, in the A-Series N9927-90020 (Unabridged) User's Guide.)
• Marker Peak Excursion and Threshold (see “What Is a ‘Peak’”)

How to Preset the FieldFox

1. Press Preset.
2. Then choose one of the following:

• Preset Returns ALL Modes to the factory default settings.
• Mode Preset Returns only the current Mode to the factory default settings. The current settings for all other Modes remain.

User Preset

User Preset allows you to store custom settings for each mode, then recall the settings when the Preset key is pressed. Your custom settings are saved to a standard State file (UserPreset.sta). However, unlike State files, calibration data is NOT saved. Learn more about State files in “Set File Type and Select Device”.

How to set User Preset

1. Make your custom settings for all modes.
2. When finished, press Preset.
3. Then Save User Preset, then select Yes to confirm.
4. Then User Preset ON

How to recall User Preset

1. Press Preset.
2. Then choose from the following:

• Preset (User) The entire UserPreset.sta file is recalled. ALL modes assume the settings that were in place when the User Preset was saved. The active mode is the mode that was visible when the file was saved.
• Mode Preset (User) The settings for only the current mode are recalled from UserPreset.sta.

- Only the instrument settings are saved to UserPreset.sta. No trace data or calibration data is saved.   - User Preset ON / OFF is saved as a Preference setting. Like all preferences, this setting survives a FieldFox shut down and power ON. Therefore, when User Preset is ON during shut down, the FieldFox will load UserPreset.sta when it is powered ON.   -To return to Factory Preset, select User Preset OFF. The contents of UserPreset.sta remain stored on the FieldFox. When User Preset is OFF, you can also set the Startup Mode preference that determines which mode will be visible after powering ON. Learn more in "Startup_Mode".

Audio (Volume) Control

System volume control is a FieldFox global setting which sets speaker volume for ALL success beeps, key press clicks, and individual features that use the FieldFox speaker, such as SA Mode Tune and Listen.

The volume control setting remains through a FieldFox Preset. To cause your volume control setting to remain through a FieldFox shut down, save the setting as a Preference. Learn how in “Save and Reset Preferences”.

How to set the FieldFox Volume Control

1. Press System 7
2. Then Volume

• Use the  arrows (), the rotary knob, or numeric keypad to enter a value between 0 (lowest volume) and 100 (highest volume).
• Press Volume again and select Mute to quickly turn OFF the speaker volume.
• Press Volume again to set volume ON to the previous volume control.

Display (Settings)

You can adjust the FieldFox for optimum viewing in a wide range of lighting conditions.

Display settings are persistent after a FieldFox shut down. Save the display settings as Preferences. Learn how in “Save and Reset Preferences”.

Clean the transflective screen with gentle and minimal wiping using Isopropyl alcohol applied to a lint-free cloth.

Display Brightness

Change the brightness of the background.

How to set Display Brightness

1. Press System 7 > Display >  Brightness
2. Use the  arrows (), the rotary knob, or numeric keypad to enter a value between 0 and 100%.

Display Colors

Change Display Colors to alter the viewing scheme.

How to set Display Colors

1. Press System 7 > Display > Display Colors
2. Then choose one of the following:

Indoor
Outdoor Dusk
Outdoor Clouds
Outdoor Sun
Night Vision

Trace Width

You can set width of all displayed traces on the FieldFox. This may allow better viewing or enhance the look of screen images. This setting can be saved with Preferences.

How to set Trace Width

1. Press System 7 > Display > More > Trace Width
2. Then choose one of the following:

• Normal - Standard width.
• Wide - Enhanced width

Title

A custom title can be made to appear in the upper-left corner of the FieldFox screen. The title can contain up to approximately 65 alpha-numeric characters. To view the Title area, see the Screen Tour in "Screen_Tour".

How to add or edit a Title

1. Press System 7 > Display > Title
2. Press enter or edit a title using the FieldFox labeler. This is the same labeler function that is used to name files. Learn how to use the labeler in “How to use the FieldFox labeler”.
3. Press Title ON OFF to make the title appear and disappear from the screen.

Edit Keywords

During a file save operation, keywords can be quickly appended to other text to create unique filenames. The Edit Keywords feature allows you to create custom keywords. Learn all about Edit Keywords in “Edit Keywords”.

Full Screen Mode

Full Screen Mode maximizes the display of trace. The screen annotations and the soft keys are removed.

1. Press System 7
2. Then Full Screen

To Exit full screen Mode, press any key.

Utilities

FieldFox utilities settings will not survive a shut down. When your FieldFox is turned OFF, then back ON, these settings default to their factory settings.

For information on the Phase Array Antenna and EMF Antennas softkeys, refer to Chapter 14  5G Rapid Prototype Phased Array Antenna – Option 360 chapter, in the A-Series N9927-90020 (Unabridged) User's Guide).

How to view and change Utilities Settings

1. Press System 7
2. Then Utilities Opens the Utilities softkey menu.

Utilities Softkey Choices

Then choose one of the following:

• Mapping – (Requires Option 352) opens a menu of softkeys that enables the Indoor / Outdoor on–the–box mapping features. Refer to Chapter 16, “Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233 on N991xA), and GPS Receiver (Option 307))” in the A-Series N9927-90020 (Unabridged) User's Guide).
• Phased Array Antenna (PAA – Requires Option 360) - opens a menu of softkeys that enables the PAA measurements. Refer to Chapter 4, “5G Rapid Prototype Phased Array Antenna – Option 360” in the A-Series N9927-90020 (Unabridged) User's Guide).
• EMF Antennas – opens a menu of softkeys that enables the triaxial antenna feature, for use in EMF measurements. Refer to Chapter 15, “USB Antennas – (Full Capability Requires EMF Option 358, and SA mode (Option 233 Mixed Analyzers))” in the A-Series N9927-90020 (Unabridged) User's Guide).
• Freq Extnd – opens a menu of softkeys that enables frequency extender feature, for use with OML heads. Refer to “How to view and change the Frequency Extender (Freq Extnd) Settings”.

IMPORTANT! The Frequency Extender feature uses the Remote Server feature that requires the FieldFox to have CPU2 installed. Refer to the A-Series Configuration Guide, https://www.keysight.com/us/en/assets/7018-03329/configuration-guides/5990-9836.pdf.   The Frequency Extender (Freq Extnd) is only active (available) when one of the following modes are enabled: SA/RTSA/IQA/OTA/PAA/VSA (via the Remote Server feature – Requires CPU2).   When OML millimeterwave extenders are used, Cable and Antenna corrections, if On, are included in eCorr, or Extended Corrections.

How to view and change the Frequency Extender (Freq Extnd) Settings

The following are the only supported modes for the frequency extender feature: SA (Option 233, mixed analyzers, RTSA (Option 350), IQA (Option 351), OTA (Option 370/377/378), PAA (Option 360) modes, and VSA (via the Remote Server feature).

IMPORTANT! When using a frequency extender with the FieldFox you need to manually set the LO power:   – When using the mixer, the LO power should be reduced to –12 dBm and – Reduce frequency span to make measurements until the “unleveled power” message goes away (requires ≥A.12.40 firmware)   If you upgrade your FieldFox firmware to ≥A.12.40, but find you are unable to adjust the LO power level to –12 dBm, refer to “Erase User Data”.

IMPORTANT! Due to limitations in the OML hardware, the heads have a 6 GHz frequency span.   Examples Using a 24 to 40 GHz mixer, you can sweep: – 24 to 30 GHz and 25 to 31 GHz, but not – 24 to 31 GHz   Assuming the same 24 to 40 GHz mixer, using OTA mode, you can – Set a CC0 to 24 GHz and CC1 to 31 GHz, but not – CC0 to 4 GHz and CC1 to 32 GHz, because you have to remain within the mixer’s band

PAA and 89600 VSA (via the Remote Server feature) are compatible with the frequency converter heads, but cannot apply or edit the frequency head corrections.

For this section, refer to Figure 9-1, Figure 9-2 , Figure 9-3, Figure 9-4, Figure 9-5, and Figure 9-6.

These settings are used to set up a frequency extender head (e.g., OML head). The frequency extender feature can be used in OTA FR2 measurements. See also, Chapter 13, “Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5GTF Option 377 (CPU2 Only)” in the A-Series N9927-90020 (Unabridged) User's Guide).

The frequency extender heads are an external down converter that extends the FieldFox's range. The frequency extender head makes use of the FieldFox's source and uses USB port for power. The FieldFox support for the frequency extender head includes:

• The frequency extender heads are compatible with to SA, IQA, OTA, PAA, RTSA, and 89600 VSA (via the Remote Server feature—with VSA license).

The OML frequency extenders have approximately 4 to 10 dB of gain depending on the mixer and frequency.

• The USB ports are used to supply power to the head
• Port 1 is used to supply an LO signal to the head. The LO signal is automatically generated, using the internal source. Therefore the application disables normal Port 1 access to the internal source. But, automatic alignments of the SA Receiver still remain active using an internal path for the source.
• Port 2 is where the head delivers the downconverted signal to the SA receiver.
• High Sensitivity ON OFF selection: able to choose between showing largest span (wide) available (6 GHz) or best noise floor (narrow).

Frequency Extender Procedure

General Comment on Frequency Converter Usage:

OML heads are limited to 6 GHz span.

Example:

If you are using a 24–40 GHz OML head you can sweep:

• 24–30 GHz and 25–31 GHz, but not:
• 24–31 GHz

But, in OTA mode, because each frequency is set separately, you can set CC0 to 24 GHz and CC1 to 31 GHz.

But, you cannot set CC0 to 4 GHz and CC1 to 32 GHz. You have to stay within the band of the OML mixer (24-40 in this example), if you are enabling an external head.  

1. Press System 7 > Utilities > Freq Extnd > Select Freq Extnd Head
2. To select the frequency extender head, use the numeric keypad,  arrows (), or rotary knob to change the value.
3. Press Recall File to make the highlighted head the current selection.
4. Press Freq Extnd ON OFF to ON to enable the frequency extender head. When a compatible mode is enabled, all supported modes annotate Freq Extnd at the bottom of the display. See also, step 8.
5. Optional: Press High Sensitivity ON OFF to ON is selected for maximum span (up to 6 GHz). Narrow is selected for lowest noise floor for a given RF input (100 MHz). Default is OFF (maximum span – 6 GHz).
6. Optional: Press Setup Corr Auto Edit SA when Auto is selected the default corrections for a frequency converter head are automatically loaded ("...Default.csv"). These corrections are defaults for the specific head, to improve nominal accuracy of the amplitude readings, but this accuracy is not specified. Press Edit SA, when you want to view or edit the corrections using the SA mode corrections. This state stops all auto-loading of the default corrections. Refer to step 8.

The other non-SA supported modes do not allow viewing or editing of the corrections, but they all share the same corrections.

Therefore, any manual changes to the corrections (using SA via Edit SA) are then used by other supported modes (RTSA/IQA/OTA) as well.

7. Optional: Press Apply Corr ON OFF OFF is selected to not apply the default nominal file corrections. Press to apply corrections for the Converter, all supported modes will apply corrections and annotate "eCorr" in the left panel. The corrections applied (regardless of mode) are either default/nominal (if Auto loading was used) or custom/specific (if manual editing Edit SA was used). Default is OFF.
8. Press Mode > and then your preferred mode for testing.

IMPORTANT! The softkey menu for editing of the frequency converter correction files is only available when the FieldFox is in SA mode.

• Optional: If you pressed Edit SA in step 6 above and want to display and to edit a "*.csv" corrections file then:
• Press Scale/Amptd > More > Corrections > OML Converter then:
1. Converter to enable/disable the frequency converter corrections.
2. Edit Converter to opens a corrections table of the currently selected file (*.csv).

To select a setting/value to edit, use the numeric keypad,  arrows (), or rotary knob to change the value.

Refer to Figure 9-4.

It is important to save any changes that are made to the Settings table. If the Setup Corr softkey is reset to Auto, it will recall the last "...Default.csv" used, and any unsaved changes will be lost.

3. New to opens a corrections table of the currently selected file (*.csv), but enables you to create a new converter corrections file. Displays "Overwrite existing Converter data?" Then choose:
• Yes to clear all of the frequency converter correction table’s values and enter your own.
• No to leave the current correction table values and edit just some of the entries.

To select a setting/value to edit, use the numeric keypad,  arrows (), or rotary knob to change the value.

Refer to Figure 9-4.

3. Save Converter opens a ’labeler’ menu where you can name and save your frequency converter corrections file (*.csv) to the default [INTERNAL]:\Converter folder.
4. Recall Converter opens a menu where you can recall a frequency converter corrections file (*.csv).
5. Storage Device opens a menu where you can change the storage location of your frequency converter correction files (*csv). (Default = Internal. Else, press SD Card or USB.)

See also, Chapter 13, “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.”

Figure 9-1 FieldFox with OML Downconverter

Figure 9-2 FieldFox Frequency Converter High Sensitivity (ON: Narrow—Lowest Noise Floor—Displayed)

Figure 9-3 FieldFox Frequency Extender Select Frequency Extender Head

Figure 9-4 FieldFox Frequency Converter Corrections Table

Figure 9-5 FieldFox Frequency Converter (Freq Extend) On And Corrections (eCorr) Enabled (SA mode shown; other compatible modes are similar.)

Figure 9-6 FieldFox Frequency Converter (Freq Extend) On And Corrections (eCorr) Enabled (RTSA mode shown; other compatible modes are similar.)

Preferences

FieldFox preferences are settings that survive a shut down. When your FieldFox is turned OFF, then back ON, these settings remain. All preference settings can be restored to their factory defaults. Learn how in “Save and Reset Preferences”.

There are two ways to make FieldFox preference settings:

• From softkey selections throughout the FieldFox menu structure. Do this to temporarily try a setting, then press Save Current Preferences. Learn how in the next section.
• From the Quick Settings table.
• Also, refer to: “Audio (Volume) Control” and “Display (Settings)”.

Quick Settings Table

All preferences can be set from the Quick Settings table. They are immediately saved as Preferences when Done is pressed.

How to view and change Preference Quick Settings

1. Press System 7 > Preferences > Preferences
2. Press Next Page and Previous Page to view all settings.
3. To change a setting:
1. Use the arrows () to highlight a setting.
2. Then press Edit. The current setting changes to yellow.
3. Some settings require you to press a softkey to change the value.
   
   Otherwise, use the numeric keypad,  arrows (), or rotary knob to change the value.
   
4. When finished changing a value, press Done Edit.

4. When finished changing ALL preferences, press Done. All changes are immediately saved as Preferences.

5. To exit the editing session without saving changes, press Esc at any time.

Learn more about these preference settings:

Save and Reset Preferences

All preference settings can be made at one time from the Quick Settings table.

All settings that can be saved as preferences (except Battery Saver and Startup Mode) can also be made from individual softkey selections throughout the FieldFox menu structure. However, they remain through a FieldFox shut down ONLY when the current settings are saved as preferences.

The table above shows a list of all of these settings and where they are discussed in this User’s Guide.

How to save current settings as Preferences

1. Using softkeys, configure the settings as you would like them to remain.
2. Press System 7 > Preferences
3. Then Save Current Settings There is a beep when your settings have been saved.
4. Press Reset Preferences to restore the factory default settings.

Language

• Press System 7 > Preferences > Language

See also, “How to select a Language”.

Global Settings (Overview)

Choose the Global Settings values (Language, Batter Saver, and Startup Mode). See also “Quick Settings Table”.

How to select Global Settings:

1. Press System 7 > Preferences > Preferences
2. Then use arrow () softkeys or the knob to select Global Settings
3. Then Edit for each of the following:
• Language (see)
• Battery Save Mode (see)
• On
• Off (default)
• Startup Mode (see)
4. Then Done Edit (for each change in setting)

How to select a Language

1. Press System 7 > Preferences > Language OR

This setting is available under Global Settings by:

Press System 7 > Preferences > Preferences

1. Then choose from the following:
• English
• Espanol – Spanish
• Deutsch – German
• Italiano – Italian
• Francais – French
• Russian
• Japanese
• Chinese
• Turkish

Battery Saver

When the battery saver is OFF, the RF source power is left ON at the end of the sweep which consumes more battery power. This feature is used in CAT, NA, VVM modes, and SA mode when the internal source is turned ON.

Battery Saver is the ONLY FieldFox setting that must be made as a Preference from the Quick Settings table. This setting remains until you change it again.

The FieldFox internal temps will run 2°C – 5°C cooler with the Battery Saver on (the temperature range is dependent on the ambient temp).

How to set Battery Saver

1. Press System 7 > Preferences   Preferences
2. Then scroll to Global Settings > Battery Saver
• ON – To conserve battery power, the RF source power is turned OFF at the end of each CAT, NA, and VVM mode sweep.  This behavior does not impact FieldFox measurements.
• OFF – Source power is kept ON at all times, including during trigger Hold mode and between single sweep acquisitions. The RF source stays at the stop frequency until another sweep begins. This provides a constant, uninterrupted RF output from the RF OUT port. This behavior also provides the highest trace stability sweep-to-sweep which may only be evident while using either single sweep or Run/Hold.  With Battery Saver OFF, the use of a full battery charge is reduced by approximately 45 minutes.

Startup Mode

The Startup Mode setting determines the mode that becomes active (visible) when User Preset is set to OFF (Factory Preset) and the FieldFox is powered ON. See “User Preset”.

How to setup Startup Mode

1. Press System 7 > Preferences > Preferences
2. Then scroll to Global Settings > Startup Mode > Edit.
3. Then repeatedly press the Startup Mode to scroll through the available choices or use the arrow () softkeys.

• <Default> is the factory default mode for your FieldFox model.
• Built-in Power Meter Mode is NOT allowed as a Startup Mode.

Startup Option

The Startup Option setting determines the behavior of the FieldFox after a restart.

An instrument can never power up for the first time in LAST.   If line power to the instrument is interrupted, by any of the following, Last Power Off State may not work properly: – If there is no battery and the line cord plug is removed – If the test rack/bench power is switched off power.   For proper operation, Last Power Off State depends on your shutting down the instrument via softkeys Mode > More. . . (Varies with number of Options loaded) > “Shut down” | “Restart”.

• If the Startup Option is set to Last Power Off State the mode that the FieldFox was set to before a reboot is displayed on power up.
• When the Startup Option is set to User (See Startup Mode), (Default) the Startup Mode selected is the first mode visible on startup and is Option dependent. If User Preset is set to ON, it is loaded on power up.

See “User Preset”.

How to setup Startup Option

1. Press System 7 > Preferences > Preferences
2. Then scroll to Global Settings > Startup Option and press Edit.
3. Then repeatedly press the Startup Option to toggle through the available choices.

• User (See Startup Mode) or

• Last Power Off State

Display

Choose the Display values (Display Colors, Trace Width, Brightness, Title Enabled, Title). See “Display (Settings)” on page 721.

How to select Display values:

1. Press System 7 > Preferences > Preferences
2. Then Preferences
3. Then Preferences
4. Then use arrow () softkeys or the knob to select Display
5. Then Edit for each of the following:

• Display Colors
• Indoor (default)
• Night Vision
• Outdoor Sun
• Outdoor Dusk
• Outdoor Clouds

4. Trace Width

• Normal (default)
• Wide

Setting trace width to Wide, will result in slower trace refresh rates.

5. Brightness
• 0 to 100% (80% default)

6. Title Enabled

• On
• Off (default)

6. Title
• User Title (default)
7. Then Done Edit (for each change in setting)

Audio

Choose the Audio values (Mute, Volume). See also “Audio (Volume) Control”.

How to select Audio values:

1. Press System 7> Preferences > Preferences
2. Then use arrow () softkeys or the knob to select Audio.
3. Then Edit for each of the following:

• Mute
• On
• Off (default)

4. Volume
• 0 to 100 (default is 50)
5. Then Done Edit (for each change in setting)

Date and Time

Choose the Date and Time values (Date and Time, Time Format, Date Format, and Time Zone). See also “Date and Time, Format, and Time Zone Settings”.

How to select Distance and Time units:

1. Press System 7> Preferences > Preferences
2. Then use arrow () softkeys or the knob to select Date and Time.
3. Then Edit for each of the following:

• Date and Time
• Edit as needed (Refer to “Date and Time, Format, and Time Zone Settings”):
• Time Format
• Date Format
• Time Zone

4. Then Done Edit (for each change in setting)

GPS – Distance Settings

Choose the GPS values (GPS State, Elevation Unit, GPS Sync Clock, Display, Lat/Lon Format). See also “GNSS (GPS+) and GPS”.

How to select GPS distance units:

1. Press System 7> Preferences > Preferences
2. Then use arrow () softkeys or the knob to select GPS.
3. Then Edit for each of the following:

• GPS State
• Off (default)
• Internal
• External
• Elevation Unit
• Meters (default)
• Feet
• Inches
• GPS Sync Lock
• Off (default)
• Internal
• External
• Display
• On
• Off
• Lat/Lon Format
• dddº mm’ ss.sss”
• ddd.dddddddº
• dddº mm.mmmmm’
• Brit. Nat'l. Grid
• Then Done Edit (for each change in setting)

Frequency Reference

When Internal or External is selected, a search is made for satellites overhead. GPS (default) works best when outdoors and in full view of the open sky.  

See also, “GNSS (GPS+) and GPS”.

How to set the frequency reference settings:

This procedure saves your frequency reference settings using the Quick Settings Table in Preferences. Learn more in the “Quick Settings Table”.

1. Press System 7> Preferences > Preferences then
2. Press Next Page until Frequency Reference is displayed.
3. Use arrow () keys  or knob to scroll down to until Frequency Ref Source is highlighted.
4. Press Edit > Frequency Ref Sou [GPS] then
5. Choose from the following:

• GPS - (default setting).
• External - Enable GPS using an external, customer-supplied, USB dongle device. A check is made to detect a USB GPS device at the USB connectors.
• Internal - Enable GPS using Option 307 – Built-in GPS. Connect a GPS antenna to the top-panel GPS connector. Learn more about additional GPS antenna accessories at http://www.keysight.com/find/fieldfox. Internal is set automatically when Frequency Reference Source is set to GPS. Learn more in “Frequency Reference Source”.

File folders

When enabled, FieldFox uses the last selected Device and Folder location as the default device location after instrument power cycle.

Before setting the preferences for the File Folders, you must select the Device and Folder locations. Refer to Chapter 10, “File Management”.

How to set File Folders

1. Press System 7> Preferences > Preferences then
2. Then scroll to User Folder Persist:

• User Folder Persist (On/Off) – Defaults to the current Device and folder location at power up. Toggle User Folder Persist On/Off when a new Device location is selected location.
• User Folder – displays the default folder location.
• User Device – displays the default device location.

See also: “Alpha Numeric Editing” and “File Saving Naming Options”.

Alpha Numeric Editing

• Keyboard Style – Toggles through Qwerty/ABC style keyboards that the Labeler displays. Refer to “How to use the FieldFox labeler ”.

File Saving Naming Options

Prefix – Displays the current choice for Prefix. Choices are User, Last File (default), or Off. Refer to Prefixes and Suffixes for Filenames in “Prefixes and Suffixes for Filenames”.

Auto Append – Displays the current choice for Auto Append to a filename (Suffix). Choices are Off (default), Number, Date. Refer to “Prefixes and Suffixes for Filenames”.

Quick Save Editing

Enables/disables the Quick Save feature. Quick Save saves any files you have set to On in the Group Save File Types preferences. Refer to “Group Save File Types Editing”.

To save the User Device storage location, refer to Chapter 10, “File Management”.

IMPORTANT! To avoid losing data, before using the Quick Save feature, verify that you have all of the correct data file types enabled for saving.

1. Press System 7> Preferences > Preferences then
2. Press Next Page until Quick Save is displayed.
3. Use arrow keys () keys or knob to scroll down to until your choice is highlighted then choose one or more of the following:

• Save/Recall Long Press  – Enables/Disables the Quick Save feature. When enabled (default == On) and when the Save/Recall 9 hardkey is held down for >600 ms, the specified files are saved to a file with the FFoxData prefix. Refer to “Prefixes and Suffixes for Filenames”.

• Quick Save Prefix – Chooses the name of the Quick Save data file’s prefix. Press the Edit softkey to edit the prefix name in the "Quick Save Prefix" menu (default = FFoxData). Refer to “Prefixes and Suffixes for Filenames”.
• Quick Save Suffix – Chooses the name of the Quick Save data file’s suffix. Press the Edit softkey to edit the suffix type Number or Data (default = Number). Refer to “Prefixes and Suffixes for Filenames”.

• Quick Save Show File Dialog – When the Quick Save Show File Dialog is set to On (default == Off), pressing Save /Recall 9 for >600 ms causes the FieldFox Labeler to open and displays the current filename that is going to be used or can be edited to save your data. Learn more, see “Prefixes and Suffixes for Filenames” and to “Group Save File Types Editing”.

Group Save File Types Editing

Enables/disables the selected file types to be saved as part of the Group Save File Types feature. (Default for all group save file types = Off.) Refer to “Quick Save Editing”.

Group Save File Types Procedure

1. Press System 7> Preferences > Preferences OR

Press Save/Recall 9 > More > Preferences then

2. Press Next Page until Group Save File Types is displayed.
3. Use arrow keys () or knob to scroll down to until your choice is highlighted then:
4. Press Edit then
5. Press ’file type’ Data (.xxx) to enable/disable the data file type (default = Off). (e.g., Image (.png) ON OFF, CSV Data (.csv) ON OFF, etcetera).
6. Repeat steps 3 through 5 as required.
7. Press Done Edit to exit the current data type softkey menu.
8. Press Done to exit the Preferences menu and save your Preferences.

Group Save File Types

• State+Trace (.sta)  – Enables/Disables .sta as a group. file to be saved when the Quick Save (Save/Recall 9) hardkey is pressed for ~3 seconds.
• State (.sta) – Enables/disables .sta files as a group file to be saved when the Quick Save (Save/Recall 9) hardkey is pressed for ~3 seconds.
• Image (.png) – Enables/disables .png files as a group file to be saved when the Quick Save (Save/Recall 9) hardkey is pressed for ~3 seconds.
• CSV Data (.png) – Enables/disables .csv data files as a part of the group files to be saved when the Quick Save (Save/Recall 9) hardkey is pressed for ~3 seconds.
• S1P Data (.s1p) – Enables/disables .s1p data files as a part of the group files to be saved when the Quick Save (Save/Recall 9) hardkey is pressed for ~3 seconds.
• S2P Data (.s2p) – Enables/disables .s2p data files as a part of the group files to be saved when the Quick Save (Save/Recall 9) hardkey is pressed for ~3 seconds.
• Matalab Data (.mat) – Enables/disables .mat data files as a part of the group files to be saved when the Quick Save (Save/Recall 9) hardkey is pressed for ~3 seconds.
• SDF Data (.sdf) – Enables/disables .sdf data files as a part of the group files to be saved when the Quick Save (Save/Recall 9) hardkey is pressed for ~3 seconds.

CAT (Distance Units)

Choose the CAT distance units (i.e., Meters (default), Feet, Inches). See “DTF Units”.

How to select CAT distance units:

1. Press  System 7> Preferences > Preferences
2. Then Edit for each of the following:

• Distance Units:
• Meters (default)
• Feet
• Inches
• TDR Sweep:
• Cable (default and the most accurate)
• Auto

3. Then Done Edit (after each change in setting)

CAT/NA

Choose the CAT/NA settings for SnP file save, default factory error corrections, extended cal default. See also “> What Data Processing functions are included in saved SNP Data:” on page 775.

How to select CAT/NA defaults:

1. Press  System 7> Preferences > Preferences
2. Then use arrow () softkeys or the knob to select CAT/NA
3. Then Edit for each of the following:

• SnP File Save
• Default
• Advanced
• Default Factory Error Corr. (N995xA/6xA Only)
• Enhanced Response
• Full 2 Port
• Extended Cal Default (N995xA/6xA Only)
• On
• Off (default on models >6 GHz)

4. Then Done Edit (after each change in setting)

SA

Choose the SA setting for Individual measurement Control default. See also “Alignments”.

How to select SA defaults:

1. Press  System 7 >  Preferenes > Preferences
2. Then use arrow () softkeys or the knob to select SA
3. Then Edit for each of the following:

• Individual measurement Control
• On (Default - recommended)
• Off
• ADC Over Range Large Warning
• None (Default) no added emphasis to the ADC Over Range warning on the screen.

• Big Font + Beep – this option makes the ADC Over Range warning have a larger text which is accompanied by a Beeping sound to alert you of the ADC Over Range.

• Beep – this option keeps the default text size, but alerts you of an ADC Over Range with a Beeping sound.

• Big Font – this option makes the ADC Over Range warning have a larger text, no sound with this option.

• Beep Length (RTSA and SA Modes Only)

When ADC Over Range Warn Emphasis is set to either, Big Font + Beep or Beep, the FieldFox audible beep sounds whenever an ADC Over Range error occurs.

You can adjust the Beep Length from 500 ms (default /minimum) up to 2 seconds. There is always a gap of at least 1s between audible beeps.

To set the Beep Length: Highlight the Beep Length setting then, press Edit > 2s (i.e., in this example, to set the audible beep to be on for 2 seconds).

4. Then Done Edit (after changing setting)

Discrete Colors Softkey Menu

The discrete colors softkey menu can be used to increase the choice of colors displayed from two to up to six colors, for easier measurement readings. Refer to Figure 9-7.

Figure 9-7 Display Example: Color Coded Bar Scale (x6 Colors)

Using the Discrete Colors Softkey Menu

1. Press System 7> Preferences > Discrete Colors
2. Choose from the following:

• Discrete Colors ON OFF – to enable/disable the discrete colors greater than 2.
• Number of Colors – choose up to 6 discrete colors (Minimum (default) = 2, red and blue).
• High Power Red Blue – choose red or blue to choose the color to indicate the highest power levels (default = Red).

System Configuration

Options (Licensing)

You can view and install options on your FieldFox. To see a comprehensive list of the options that are available, view the FieldFox Configuration Guide at: https://www.keysight.com/us/en/assets/7018-03329/configuration-guides/5990-9836.pdf.

How to view the Installed Options

1. Press System 7 > System Configuration > Options (Licensing)  
2. Then Show Options

The currently installed options are listed.

How to Install Options (License File)

A license file (*.lic file) must already be on a USB Flash Drive. To learn how to obtain a license file (*.lic file), visit: https://www.keysight.com/us/en/lib/resources/service-manuals/keysight-fieldfox-library-help-and-manuals-2153870.html.

1. Insert the USB Flash Drive in the FieldFox.
2. Press System 7 > System Configuration > Options (Licensing)
3. Then Install Options The FieldFox reads, validates, then installs the options.
4. Press and hold the power button to shut down, then restart the FieldFox.

How to Delete ALL Options

Deleting individual options is NOT supported.

1. Press System 7 > System Configuration > Options (Licensing) > Advanced
2. Then Delete All Options

After a warning message, all options on the FieldFox are deleted.

IMPORTANT!   Delete All CFG Options is to be used by Service Personnel ONLY.

For more information about Licensing, see the FieldFox Service Manual at: FieldFox Manuals, Firmware, Software and Product Support - Technical Support Knowledge Center Open (keysight.com) .

GNSS (GPS+) and GPS

IMPORTANT! The FieldFox may display "Ant OPEN", even when a GPS antenna is connected to the FieldFox. If the GPS antenna is powered by another power supply and has a DC blocking capacitor where the feed is connected to FieldFox, then minimal amounts of current will be drawn from the FieldFox, so the instrument will display "Ant OPEN". The threshold to detect the presence of an antenna is approximately 1.6 mA.

GPS (Global Positioning System) allows you to ‘stamp’ each data trace with your physical position in latitude/longitude/elevation format. This can be useful when making measurements on cell towers or other antennas at remote locations.

• With Option 307, GPS is available with the built-in receiver accessed through the top-panel SMA (f) connector. This connector has a 3.3 VDC bias voltage which is switched ON when GPS is set to Internal. This system is designed for use with an active antenna such as the Keysight N9910X-825.
• Without Option 307, GPS is usable ONLY with an external GPS receiver that is shipped with Microsoft “Streets and Trips” and “AutoRoute”. The GPS receiver is NOT available from Keysight. Only the GPS USB receiver is used with the FieldFox. Therefore, it is NOT necessary to purchase the very latest version of the map software.

How to make GPS settings

GPS settings are the same with, or without, Option 307.

Your GPS settings can be saved with Preferences. Learn more in “Quick Settings Table”.

1. Press System 7 > System Configuration > GPS
2. Then choose from the following:
3. Display ON OFF Enable and disable the GPS display on the FieldFox main window.
4. GPS then choose from:

• OFF - Disable GPS (default setting).
• External - Enable GPS using an external, customer-supplied, USB dongle device. A check is made to detect a USB GPS device at the USB connectors.
• Internal - Enable GPS using Option 307 – Built-in GPS. Connect a GPS antenna to the top-panel GPS connector. Learn more about additional GPS antenna accessories at http://www.keysight.com/find/fieldfox. Internal is set automatically when Frequency Reference Source is set to GPS. Learn more in “Frequency Reference Source”.

When Internal or External is selected, a search is made for satellites overhead. GPS works best when outdoors and in full view of the open sky. When several satellites are found, the following screen appears (when Display is set to ON) and is updated frequently:

As the bar graph count exceeds 9 bars, the “dB” text is dropped from the number displayed on the bar. Units for C/No are dBHz.

Figure 9-8 GPS Display

• The left portion of the screen displays satellites and the corresponding number on the adjacent Satellite Power chart.
• The right portion of the screen displays Satellite Power Carrier to Noise (C/No) dBHz values on the tops of the satellite power chart.

The C/No values returned are not calibrated at the factory or warranted for accuracy. The numbers retrieved are passed unprocessed directly from the GPS receiver in use.

GPS Status

With GPS enabled the following is displayed at the top of the FieldFox screen:

The following icons (located in RED circle above) indicate the GPS lock status:

 - GPS ON and locked on satellites.

 - GPS ON, but NOT locked on satellites.

 - GPS ON, but no GPS receiver is present or detected.

The following annotation (BLUE circle in above image) indicates the INTERNAL, top-panel antenna status:

Ant: INIT – antenna status initializing.

Ant: OK – antenna present and working.

Ant: OPEN – antenna is not drawing DC bias current. This could occur when an active antenna is not connected properly or the antenna does not require DC bias current. Antennas that do not require bias current can still provide an accurate GPS reading.

Ant: SHORT – antenna center pin has been shorted to ground. The internal bias circuitry is disabled for about one minute, then re-enabled. You can also press GPS OFF, then GPS Internal to quickly re-enable the antenna bias.

More GNSS and GPS settings

See also, “GNSS and GPS Freq Ref Source Settings”.

1. Press System 7 > System Configuration
2. Then System Configuration
3. Then GNSS (GPS+) or GPS (depending on options) > GNSS Settings
4. Then choose from the following:

• Enable and disable the synchronization of the FieldFox internal clock to the GPS UTC time standard.

• ON  The FieldFox clock is synchronized and updated approximately once every hour to the time of the GPS clock.
• OFF  The FieldFox clock is NOT synchronized with GPS. When set to OFF after Sync was ON, the date and time does NOT revert back to the settings before the clock was synchronized.
• Display ON OFF Enables or disables displaying Lat/Lon Format and Elevation Units.
• Lat/Lon Format Change the format of the GPS display on the FieldFox screen. Choose from:
• ddd°mm’ ss.sss”   degrees, minutes, seconds (default setting)
• ddd°mm.mmmmm’  degrees, minutes, fractional minutes
• ddd.ddddddd° decimal degrees
• None  Lat/Lon is not displayed.
• Elevation Unit   Choose from:
• m  (Meters)
• Feet
• Inches
• Antenna Voltage   Choose from:
• 3.3V 5V  – Settable to: 3.5 VDC or 5 VDC. When the bias voltage is set to ON and when the GPS is set to Internal. This system was designed for an active antenna such as the Keysight N9910X-825

Saving Data with GPS Enabled

GPS position and clock data are included when data is saved with the following files types: *.csv, *.SnP, State, State+Trace data save.

A warning is shown if the GPS is ON but unlocked at time of save, or if the GPS feature is ON but no GPS is physically present at time of save.

The following is a sample S1P file with GPS information:

!GPS Latitude: 38 28.87717 N

!GPS Longitude: 122 42.66625 W

!GPS TimeStamp: 06/25/2010 16:24:48

!GPS Seconds Since Last Read: 2s

Saving GPS Display Data

To save the current GPS data displayed:

1. Press Save/Recall 9
2. Then Save File Picture (PNG)

A menu opens to enable naming the file you are saving (*.png).

More GNSS Settings

These GNSS settings require that the A-Series FieldFox has been upgraded with a new system board N9927-63074. Verify your system board by pressing System > Service Diagnostics > System Information then verify in the Setting column the SB Part Number is N9927-63074.   FieldFoxes with serial number prefixes >MY60511001 / US60510101 / SG60517001 /SG60518501 already have this new system board installed.

1. Press System 7 > System Configuration > GNSS Selection
2. Then choose from the following:

• GPS - Refer to “How to make GPS settings”.
• GLONASS - Global navigation system, operating as part of a radio navigation-satellite system. Learn more “More GNSS and GPS settings”.
• BDS - China’s BeiDou navigation system. Learn more “More GNSS and GPS settings”.
• GALILEO - European navigation system. Learn more “More GNSS and GPS settings”.

GNSS and GPS Freq Ref Source Settings

For convenience, the GNSS Settings menu includes the Freq Ref Source softkey.

1. Press System 7 > System Configuration > GNSS (GPS+) > Freq Ref Source [GPS] then
2. Choose one of the following:
• Int, Ext, or GPS

For more, on the Freq Ref Source softkey choices, refer to “Frequency Reference Source”.

Frequency Reference Source

The FieldFox internal frequency reference source is used to make accurate and stable measurements. To improve measurement accuracy and stability, you can use a highly-stable external 10 MHz reference source or a precision timing signal provided with Built-in GPS (Opt. 307).

The Frequency Reference setting will survive a Factory Preset or Mode Preset and is saved as part of the Instrument State. When resuming after Standby, the FieldFox will display an Unlock message while it acquires a lock to an external or GPS source.

How to select Frequency Reference Source

1. Press System 7 > System Configuration  > Frequency Ref > Freq Ref Source then
2. Choose from the following:

• Int Internal frequency reference
• Ext External frequency reference. Connect the 10 MHz External Reference to the Ref In/Trig In SMA (f) connector on the FieldFox top panel. The FieldFox may take up to 10 seconds to lock to a valid External Reference source
• GPS Available ONLY with Built-in GPS (Opt. 307). When selected, the internal GPS is immediately enabled and a search for satellites begins. When satellites are found, the precision timing signal is NOT used directly, but is used to correct the absolute frequency of the internal reference many times per second.

Hold-over mode

When the GPS signal is lost, the last GPS reading is used as a hold-over correction value for the internal reference. The hold-over correction value is no longer used, but instead the factory-set correction value is used, when any of the following occur:

• when GPS is disabled.
• when Reference Source is set to Internal.
• when the FieldFox resumes from Standby mode or shut down.

Frequency Reference Status

When switched to Ext or GPS, one of the following annotations appears in the lower-left corner of the screen:

EXT R – External reference is selected.

GPS R – GPS reference is selected.

GPS H – Internal Reference is used with last ‘hold-over’ correction reading.

If the FieldFox does NOT find an appropriate Ext or GPS reference signal, then Ext Ref UNLOCKED is displayed in the lower-left corner of the graticule area. This can occur when any of the following conditions exist:

• NO reference signal is present.
• A low or very high-level external reference signal is present. For best results, the signal should be between –5 dBm and +5 dBm.
• The external reference is off-frequency.

To learn the expected measurement accuracy when connected to a frequency reference source, see the FieldFox specifications in “Appendix B: Specifications/Data Sheet,” in the A-Series N9927-90020 (Unabridged) User's Guide).

Reference OUT

The internal 10 MHz frequency reference is available from the Ref/Trig output connector on the right-side panel. Use this signal as a common frequency reference when making measurements using external equipment. See this connector in “Top Panel”.

Variable Voltage Source (Opt. 309)

IMPORTANT! Noise Figure mode uses DC variable voltage source (VVS) – (Option 309) during the measurements. The voltage might be as high as 28V during the measurement. During the noise figure measurement, always make sure there are no voltage sensitive devices connected to the DC SMB output port. Refer to Chapter 28, “Noise Figure Mode (Option 356 – CPU2 Only),”  in the A-Series N9927-90020 (Unabridged) User's Guide).   When you initially change the FieldFox mode to Noise Figure, the FieldFox displays the following message for ten seconds: "Ensure your Noise Source is connected to the VVS DC Output It (VVS) will be driven up to +28V during the measurement".

An internal DC source, available with Opt. 309, may be used to provide power for external devices. The maximum power available is 8 watts.

The voltage is output through an SMB (m) output connector located on the left-side panel. See the connector in “Left Side Panel”.

An optional SMB (f) to BNC (m) bias-tee power cable is available with Keysight part number: N9910X-713.

The following status line is provided near the top of the FieldFox screen.

Figure 9-9

How to make Voltage Source settings

1. Press System 7 > System Configuration > Voltage Source
2. Then Source ON OFF to enable and disable the voltage source output.
3. Then choose:

• Then Voltage x.xx V Using  arrows (), the rotary knob, or numeric keypad, enter a value between 0.001 and 32 volts.
• Clear Overload If the voltage source becomes ‘TRIPPED’ press to re-enable the voltage source output. Then set Source ON.
• Status Line ON OFF Turn ON and OFF the voltage source status line that appears near the top of the screen. The status line is always ON while making Voltage Source settings.
• Hi Impd. Load ON OFF Enables/Disables low current use (Step) and high current use (Ramp). Default = OFF (Low current (Step)).

Security Level

For security reasons, you can prevent frequency information from appearing on the FieldFox while in SA, NA, or CAT modes.

How to set Security Level

1. Press System 7 > System Configuration > Security Level
2. Then choose from the following:

• None All frequency settings are visible.
• High Frequency information is blanked from the following:
• Display annotation
• Softkeys
• Marker display and marker table
• Calibration properties
• All settings tables
• Limit line tables
• All saved .png files
• Any of the following will re-display frequency information:
• Set to None, Preset, Mode Preset, or FieldFox restart.

Date and Time, Format, and Time Zone Settings

Set the local date and time, Date and Time format, and Time Zone that is shown on the FieldFox screen. The Date and Time is also used to identify files that are saved.

The Date and Time can also be set by synchronizing with GPS satellites. Learn more in “GPS – Distance Settings”.

How to Update Date and Time using Internet

This method of setting the Date and Time does NOT have the security restrictions of the other methods (listed below).

This method will NOT set the correct Time Zone. You must do that using the manual method. See below.

1. Press System 7 > System Configuration > More > Update Time using Internet
2. Connect a LAN cable that is also connected to the Internet.
3. Then press Update Time using Internet. When successful, a message is displayed indicating the amount of time correction that occurred.

• Optional: Set the following when a Proxy server is used to connect to the internet:
• Proxy Host – Enter the name of the proxy host.
• Proxy Port – Enter the port number of the proxy host.

How to MANUALLY set Date and Time, Format, and Time Zone

Because of licensing security, the manual and GPS Sync methods to set Date and Time are restricted as follows: - Can be set backward no more than 5 hours at a time. - Can be set forward any amount of time. - Can be set backward or forward no more than once in a day. A new day begins at midnight. - There is no restriction for setting the Time Zone. - To change the Date and Time backward a significant amount, send an email to csg.servicedesk@keysight.com.

BEFORE manually setting the Date and Time, be absolutely certain that the Time Zone setting is correct.

1. Press System 7 > System Configuration > More > Date and Time.
2. Press the  arrows () to highlight the row to be edited.
3. Then press Edit.
4. Use the arrows () or rotary knob to select and to edit a field.
5. Press Cancel or Done when the edits are complete.
6. Press Done to exit the Date and Time settings. The readout in the upper-right corner of the FieldFox screen will update accordingly.

LAN Settings

Configure the LAN settings to be used to communicate with the Data Link Software and connect to the FieldFox for remote SCPI operation. Learn more about Data Link at: www.keysight.com/find/fieldfoxsupport.

Table 7-1 LAN LEDs (N995xA, N996xA, and applies to: N991xA/2xA/3xA units with serial number prefixes ≥5607)

How to configure LAN settings

The first three ‘Current...’ settings can NOT be edited.

1. Press System 7 > System Configuration > More > LAN.
2. Then choose from the following:

• Use the  arrows () to select one of the following, then press Edit.
• Hostname Change the name that can be used to address the FieldFox if your server supports this feature. The default hostname is generated automatically.
• Obtain IP Choose from:

• DHCP - IP Address is assigned dynamically. If your server supports this feature, the IP Address for the FieldFox is assigned each time it is started.

• Static - Set the IP Address manually. The Address remains until you change it.

• Static IP Address - Enter the IP Address – including periods - in the format nnn.nnn.nnn.nnn

For all FieldFoxes with firmware ≤A.08.18 and ≤A.09.50 FW, when using Static IP addresses: - Either a valid Static Gateway is required or 0.0.0.0. - Either a valid Static DNS is required or 0.0.0.0. (If entry is available.)

• Static Subnet Mask - Enter the Subnet Mask – including periods - in the format nnn.nnn.nnn.nnn
• Static Gateway - Enter the Static Gateway – including periods - in the format nnn.nnn.nnn.nnn
• Static DNS - Enter the Static DNS – including periods - in the format nnn.nnn.nnn.nnn
• Apply Settings Choose from:
• Power Up The above settings take effect when the FieldFox is started.
• Now The above settings take effect immediately.

To make the LAN settings persist after power up, toggle Apply Settings to Now then back to Power Up. You should see a message indicating that the LAN config file was saved.

3. Press Done Edit when finished.

Power ON

When the FieldFox is without a power source, this setting allows the FieldFox to power ON when the DC Adapter is inserted without pressing the power button.

How to set Power ON

1. Press > System Configuration > More > Power ON.
2. Then choose from the following:

• Auto The FieldFox will power ON when the DC Adapter is inserted.
• Manual The FieldFox will power ON only when the power button is pressed.

FieldFox Package Installer (N995xA, N996xA, and applies to: N991xA/2xA/3xA units with serial number prefixes ≥5607)

The FieldFox Package Installer enables you to download new versions of firmware from either a USB memory or SD Card. Additionally, the Utility softkey enables you to backup user files or restore user files.

How to run the Installer

Before running the Installer to update your firmware, you might want to back up your user data. Refer to “How to restore files”.

1. Press System 7 > System Configuration > More > Firmware Update >  Start Installer.

The Installer software opens after a couple of seconds.

2. Then choose from the following:

• Then the  arrows () or the knob to scroll to the firmware you want to install.

3. Press Start Install and the following occur:

“Current Step Progress:” bar and a “Total Progress:” bar are displayed along with this message: “Copying package. Do not remove install media.”

When the installation is completed, the FieldFox reboots.

How to backup files

This procedure backs up your user data to a USB or SD card. See also “How to restore files”.

If you backup multiple versions of the user files, the FieldFox appends a “_#” to each subsequently stored file. During restore, the file with the highest appended number is loaded into the FieldFox.

From the initial Installer menu:

1. Press Utility > Backup Data

A message is displayed: “Choose backup file location.”

2. Then choose either SD Card or USB

A progress bar and a message is displayed: “Saving user data…”

3. Optional: Press Cancel to exit without backing up your files and returning to the initial Installer menu.

How to restore files

This procedure restores user files from a USB or SD card. See also “How to backup files”.

Restoring files overwrites the existing user data on the FieldFox.

If you backup multiple versions of the user files, the FieldFox appends a “_#” to each subsequently stored file. During restore, the file with the highest appended number is loaded into the FieldFox.

If your stored any user files to a USB or SD card, this procedure restores those files.

From the initial Installer menu:

• Press Utility
• Then Cancel to exit without restoring your files and returning to the initial Installer menu.

Or

Press Restore Data

• A message is displayed: “This option will COMPLETELY ERASE existing user data. ARE YOU SURE?”
• Then No to return to the previous menu without restoring files.

Or

• Press Yes
• Then choose either SD Card or USB

A progress bar and a message is displayed: “Restoring user data…”

Service Diagnostics

The Service diagnostics menu is generally used to display service-related information. To access these menu items, press System   7 then Service Diagnostics.

System Information

The System information table shows important information about your FieldFox. The following is the most useful information:

• Model Number – FieldFox model
• Serial Number – Identification number of your FieldFox
• Firmware Release – The currently installed version of software. Check to see if you have the latest firmware at: www.keysight.com/find/fieldfoxsupport.
• Network Identity – The network name and current IP address of your FieldFox.
• Reflectometer Factory Cal - The Factory (CalReady) Calibration shows the date and time that the factory cal was performed for each test port and the Thru connection. The format is P1 <date time>, P2 <date time>, P1-P2 <date time>. The factory calibration is updated when you send your FieldFox to Keysight for Instrument Calibration. Learn more in Appendix C: “Instrument Calibration,” in the A-Series N9927-90020 (Unabridged) User's Guide).

Event Log

The Event Log shows the information that has appeared on the FieldFox screen. The most recent information is at the top of the table.

Press Clear Events to erase this information.

Battery

Learn more in Chapter 33, “Working with the Lithium-Ion Battery,”  in the A-Series N9927-90020 (Unabridged) User's Guide).

Internal Temperatures

Learn about the importance of the internal FieldFox temperatures in “FieldFox High Temperature Protection”.

Erase User Data

IMPORTANT! The process in this section erases all User Data from the FieldFox. Before proceeding, Keysight strongly recommends that you back up all of your User Data to an external storage device. refer to “How to backup files”.

All data that you have written to the FieldFox can be erased with the press of a button. You would do this if your FieldFox is located in a secure environment and must be routinely erased of sensitive data.

All data is removed from the FieldFox internal “UserData” partition. This includes all State files and Trace + State files (*.sta), all Data files (*.csv, *.snp), all Picture files (*.png), all Cal Kit files, and all Cable files.

External media that is inserted (mini-SD card or USB flash drive) is NOT erased.

The “Lost Clusters“ folder and files are NOT erased because they are part of the file system housekeeping.

How to Erase User Data

1. Press System 7 > Service Diagnostics > Advanced > Erase User Data.
2. Then Confirm Erase.

• Then the following occurs:
• All data files and folders are deleted from the “UserData” partition.
• The FieldFox is rebooted, which manages the newly-freed data and re-writes the factory cal kits and cable files.

Rebooting is not required on the N995xA, N996xA, and applies to: N991xA/2xA/3xA units with serial number prefixes ≥5607.