Reference
P6330 3.5 GHz Differential Probe Instruction Manual 23
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 P6330 probe
contains 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
lengthofcable extensionreducesthe attenuation.
Incriticalapplications whichrequirehigh amplitudeaccuracy,you
should first characterize the response of the probe with the extension
using a leveled sinewave generator and power meter. Then, you can
factorthecharacterization resultsintothe measurement.
Using the Probe with Other Instruments
Youcan use the P6330 differential probe wit hot her types of
measurementinstruments,suchas spectrumanalyzers,time internal
analyzers,andnetwork analyzers.
When using the differential probes with these instruments, you must
use the 1103 TEKPROBE powersupply, and normalize the probe
withtheinstrument beforemakinga measurement.