To Use Tdr - Tektronix DSA8300 Quick Start User Manual

To Use TDR

To take TDR measurements, you must have a TDR-capable sampling module installed and your DUT must be attached to
the TDR sampling module.
1. Select TDR from the Setup menu.
2. Click the channel button to automatically
display the incident and reflected steps
of the selected channel by automating
the following tasks:
Turns on the channel.
Turns on a step.
Sets trigger source to TDR.
Sets acquisition to Averaging.
Changes display style to Show
Vectors.
3. Select a channel pair on which to
perform a differential TDR measurement.
Click Diff to automatically set up the
differential measurement for the channel
pair.
All the tasks listed in step 2 are performed
for both channels and the pulse polarity
of the second channel is set to negative.
4. Click the polarity button to toggle the
step edge.
5. Set the vertical scale Units to V (volts), Ω
(ohms), or ρ (rho).
6. If performing differential TDR, select the
channel (TDR module with dual channel
adjustment) or the even-numbered
channel of the channel pair (TDR module
with single channel adjustment) for
deskew adjustment.
7. Set the Deskew percent value.
8. Click Advanced TDR Setup to set the
TDR step rate, reference source, and
enable or disable incident waveform
display.
DSA8300 Quick Start User Manual
Waveform Measurements
59