66 Keysight N9915-90015 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 72
.
How to make settings on the DTF settings table
1. Press Meas Setup 4
> Settings.
2. Press
Next Page and Previous Page to view all settings.
3. 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
.
4. 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.
5. When finished changing ALL settings, press
Done to save your settings.
DTF Measurement (Format)
You can select from 3 different DTF Formats.
1. Press Measure 1
2. 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 at:
https://rfmw.em.keysight.com/wireless/helpfiles/FieldFoxOnlineSupplement
alHelp/Home.htm
.
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