Probe Dialog - Teledyne HDO9000 Operator's Manual

measurements and zooming with high vertical gain, for example. See
disabled when in HD Mode.
Invert inverts the trace.
Cable De-Embedding (available as an option) allows you to remove the effects of cables used in the
test setup. Select the checkbox, then enter the attenuation constants or cable characteristics
(provided by the cable manufacturer) on the Cable De-Embedding dialog that appears. See
Embedding.

Probe Dialog

The Probe Dialog immediately to the right of the Cx dialog displays the probe attributes and
(depending on the probe type) allows you to AutoZero, DeGauss and make tip selection for probes
from the touch screen. Other settings may appear, as well, depending on the probe model.
Caution: Remove probes from the circuit under test before initializing Auto Zero or DeGauss.
Auto Zero Probe
Auto Zero corrects for DC offset drifts that naturally occur from thermal effects in the amplifier of
active probes. Teledyne LeCroy probes incorporate Auto Zero capability to remove the DC offset from
the probe's amplifier output to improve the measurement accuracy.
DeGauss Probe
The Degauss control is activated for some types of probes (e.g., current probes). Degaussing
eliminates residual magnetization from the probe core caused by external magnetic fields or by
excessive input. It is recommended to always Degauss probes prior to taking a measurement.
Tip Select
If using one of the modular WaveLink probes, specify the type of tip/lead you're using by touching the
Tip Select control and making the appropriate selection.
Note: It's crucial to make the tip selection on this field as it results in the amplifier and tip
combination having the response calibrated for at the factory. Failure to do so may result in
inaccurate measurements.
Enhanced Resolution. ERes is
Acquisition
Cable De-
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