Effect Of Extending The Output Cable; Using The Probe With Other Instruments - Tektronix P6246 Mode D'emploi

Reference

Effect of Extending the Output Cable

As the frequency of a signal increases, current flow concentrates at
the outer edges of the conductor, effectively increasing the
impedance. This effect is known as skin loss. The P6246 and P6247
probes contain circuitry to compensate for skin loss.
The compensation provides flat response with the probe cable.
Extending the length of the output cable increases the amount of skin
loss beyond the range of compensation correction. Minimizing the
length of cable extension reduces the attenuation.
In critical applications which require high amplitude accuracy, the
response of the probe with the extension should be characterized
with a leveled signals source and power meter. The characterization
results can then be factored into the measurement.

Using the Probe with Other Instruments

Besides the oscilloscope, it is possible to use the P6246 and P6247
differential probes with other types of measurement instruments.
These instruments include, but are not limited to spectrum analyzers,
time internal analyzers, and network analyzers.
When using the differential probes with these instruments you must
normalize the probe with the instrument before making a measure-
ment.
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P6246 & P6247 Instructions