74 Keysight N9927-90001 User’s Guide
TDR (Time Domain Reflectometry) - Option 215
TDR Measurement Settings
— Press
Sweep 3
— Then
TDR Sweep
— Choose one of the following:
—
Auto
Low pass frequency settings are calculated based on the
current number of points. The Stop Frequency and Resolution
settings can be changed to any value.
——To set Stop Frequency, press
Meas 4
, then
Settings
, then
scroll to Auto: Max Freq.
——To set Resolution, press
Sweep 3
, then
Resolution
.
—
Cable
Provides a higher resolution measurement. Use when
under-sampling is suspected. The Stop Frequency is limited to 500
MHz maximum. The Resolution is fixed to 1601.
Frequency Mode
All TDR measurements are made with frequency settings and, using Inverse
Fourier Transform (IFT), the time and distance to faults are calculated.
How to set Frequency Mode
With a TDR measurement present,
— Press
Meas Setup 4
— Then
Freq Mode
— Choose one of the following:
—
Lowpass
The frequency range of a TDR measurement is set
automatically based on the Start and Stop Distances. Use Lowpass
mode when the DUT is a cable ONLY.
—
Bandpass
This setting changes the measurement to DTF. Bandpass
is NOT ALLOWED with TDR because the DC component is required
for TDR measurements.
Because of its greater measurement accuracy,
Cable
is the default setting
in CPU1 units with firmware A.08.18 and greater and CPU2 units with
firmware A.09.57 and greater. Refer to
The start and stop frequencies for the measurement are always annotated
on the screen below the start and stop distances.
Summary of Contents for N9913A
Page 6: ...6 ...
Page 106: ...106 Keysight N9927 90001 User s Guide NA Network Analyzer Mode NA Mode Settings ...
Page 202: ...202 Keysight N9927 90001 User s Guide SA Spectrum Analyzer Mode Channel Measurements ...
Page 444: ...444 Keysight N9927 90001 User s Guide Noise Figure Mode Option 356 CPU2 Only Troubleshooting ...
Page 470: ...Data Analysis Features All about Scale Settings 470 Keysight N9927 90001 User s Guide ...
Page 546: ...546 Keysight N9927 90001 User s Guide Connector Care Review ...
Page 548: ...548 Keysight N9927 90001 User s Guide Connector Care Review ...
Page 550: ...550 Keysight N9927 90001 User s Guide Specifications Data Sheet ...
Page 553: ...553 Keysight Handheld Analyzers N99xxA User s Guide D Korean Battery Safety Translation ...
Page 554: ...554 Keysight N9927 90001 User s Guide Korean Battery Safety Translation ...
Page 556: ...556 Keysight N9927 90001 User s Guide Keysight Software End User Licensing Agreement EULA ...
Page 557: ...Keysight N9927 90001 User s Guide 557 Keysight Software End User Licensing Agreement EULA ...
Page 558: ...558 Keysight N9927 90001 User s Guide Keysight Software End User Licensing Agreement EULA ...
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