62                                             Keysight N9927-90001 User’s Guide
DTF (Distance to Fault) Measurements
DTF Measurement Settings
DTF Measurement Settings
DTF Settings Table
You can set and view all of the DTF settings, including some calculated values, 
on the DTF Settings table. Learn about the calculated values in “Calculated 
DTF values” on page 69.
How to make settings on the DTF settings table
—Press Meas Setup 4.
—Then Settings
.
—Press Next Page
 and Previous Page to view all settings. 
— To change a setting:
— Use the   arrows or rotary knob to highlight a setting.
— Numeric settings can be changed by pressing numbers using the 
numeric keypad. Then press Enter or select a suffix if available.
— Other settings require you to press Edit
, then press a softkey to 
change the value.
— When finished changing a value, press Done Edit
.
—Press Dock Window
 to relocate the Settings table to a position relative to 
the trace window. The setting persists through a Preset. Choose from the 
following:
— Full (Default setting) Only the Settings table is shown on the screen. 
The trace window is temporarily not shown.
— Left The Settings table is shown to the left of the trace window.
— Bottom The Settings table is shown below the trace window.
— When finished changing ALL settings, press Done
 to save your settings.
DTF Measurement (Format)
You can select from 3 different DTF Formats.
—Press Measure 1
 
— Then choose from:
— Distance to Fault (dB) 
Faults are displayed on the Y-axis in return 
loss format, expressed as a positive number in dB.
— DTF (VSWR)
 Faults are displayed on the Y-axis in SWR. Learn more 
about SWR at the FieldFox Supplemental Online Help: 
http://na.support.keysight.com/fieldfox/help/SupHelp/FieldFox.ht
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