3M
™
Advanced Systems Tester 900AST Series
40
Dual Trace
Connect the TDR test leads (Red and Black jacks)
to the circuit under test. Connect the second TDR
test lead set (Blue and Yellow jacks) to the reference
circuit.
The circuit under test is displayed at the top of the
screen. The reference circuit is displayed at the
bottom of the screen. Any changes in the control
parameters affect both traces. It is not possible to
control each trace independently.
Dual Trace is used to compare two circuits at the
same time (usually a faulted and a good circuit).
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