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3
Operating the E5404A-Pro Series Probes
Time Domain Transmission (TDT)
48
All probes have a loading effect on the circuit when they come in contact
with the circuit. Time domain transmission (TDT) measurements are useful
for understanding the probe loading effects as seen at the target receiver.
The following TDT measurements were made mid-bus on a 50Ω
transmission line load terminated at the receiver. These measurements
show how the soft touch probes affect an ideal step seen by the receiver
for various rise times.
Figure 23 TDT measurement schematic (E5404A)
The following plots were made on a Keysight 54750A oscilloscope using
TDT.
Keysight Technologies E5400-Pro Series Soft Touch Connectorless Probes User's Guide
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