GW Instek GDS-3000 Series DS3-PWR Power analysis manual - Manual (Page 7)

GETTING STARTED
7
Set the Deskew
The deskew function is used to compensate for the propagation
delay between the oscilloscope and the probe. For power
measurements this is especially important as voltage and current
probes are often used in measurements and have differing
propagation delays.
Background The deskew function allows the time delay
between voltage and current probes to be
equalized.
Panel operation 1. If necessary configure a channel as
a voltage probe and another
channel as a current probe.
See the user
manual.
2. Press one of the Channel keys that
was set as the voltage or current
probe.
3. Press Probe from the bottom menu.
4. Press Deskew on the side menu and
use the variable knob to set the
deskew time.
Alternatively, press Set to 0s to
reset the deskew time.
Typically, both channels should
line up with a common edge.
Range -50ns~50ns, 10ps increments
5. If necessary, repeat the procedure for the other
channel.