TiePie Handyscope HS4, User Manual

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When using an oscilloscope probe in 1:1 the setting, the bandwidth of the
probe is only 6 MHz. The full bandwidth of the probe is only obtained in
the 1:10 setting
The x10 attenuation is achieved by means of an attenuation network. This atten-
uation network has to be adjusted to the oscilloscope input circuitry, to guaran-
tee frequency independency. This is called the low frequency compensation. Each
time a probe is used on an other channel or an other oscilloscope, the probe must
be adjusted.
Therefore the probe is equiped with a setscrew, with which the parallel capacity
of the attenuation network can be altered. To adjust the probe, switch the probe
to the x10 and attach the probe to a 1 kHz square wave signal.
Then adjust
the probe for a square front corner on the square wave displayed. See also the
following illustrations.
Figure 3.6: correct
Figure 3.7: under compensated
Figure 3.8: over compensated
10
Chapter 3