6. Adjust the vertical Scale and Position controls for each channel so that the signals overlap and are centered on the display.
7. Adjust the horizontal Scale so that the differences in the channel delays are clearly visible.
8. Determine the channel you want to use as your reference.
9. Double-tap the Channel badge of a channel other than the reference channel and tap the Other panel.
10. Tap the Deskew field and use the multipurpose knob to align this channel with the reference channel waveform such that
the waveforms cross the trigger point at the same time. For fine adjust, double-tap the Deskew field to open a number pad.
11. Repeat steps 9 and 10 for each additional channel you want to deskew.
12. To deskew additional channels:
a. Disconnect all probe tips except the reference probe from the Probe Compensation connections.
b. Connect up to three probe tips and ground leads to the Probe Compensation connector (maximum of four channels at
a time).
c. Repeat steps 3 through 12 for the additional channels to deskew.
Deskew analog input channels - measurement method
Use the following procedure to more accurately minimize timing differences between probes.
To access the user interface on the MSO58LP, connect a monitor to a video port on the rear of the instrument, and connect a
mouse to any USB Host port. You do not need to connect a mouse if your remote monitor is touch-capable. You can also
remotely access the user interface of a network-connected instrument by entering the instrument's IP address in a web browser.
To remotely set this control or run this task on an MSO58LP, see the oscilloscope Programmer Manual (Tektronix part number
077-1305-xx) for the correct command or commands to use.
Critical timing measurements on multiple channels require that all probes be adjusted, or deskewed, to compensate for signal
timing differences between probes. This procedure uses a Delay measurement to adjust a probe's deskew setting.
NOTE. Once probes have been deskewed for a particular channel, you should only use the probes on the channels for which
they were deskewed, when taking critical timing measurements.
1. Connect all probes that you want to deskew to the oscilloscope.
2. Connect up to four probe tips and ground leads to the Probe Compensation connector (maximum of four channels at a
time).
3. Turn on all the channels of the first four channels that you want to deskew.
4. Push the Autoset button.
5. Change the vertical Scale of all active channels to 500 mV/div and adjust the vertical Position so that the waveforms are
centered in their respective slices.
6. Determine the channel you want to use as your reference.
7. Tap the Add New...Measure button and tap the Timing Measurements panel.
8. Select the Delay measurement and set your chosen reference channel as Source 1 and your channel being deskewed as
Source 2, then tap the Add button.
9. Double-tap the Channel badge of the channel being deskewed (Source 2) and tap the Other panel
10. Tap the Deskew field and use the multipurpose knob to align this channel with the reference waveform such that the
measured delay between channels becomes a minimum. For fine adjust, double-tap the Deskew field to open a number
pad.
11. Double-tap the Delay measurement badge and set the Source 2 channel to the next channel to deskew.
Configure the instrument
MSO54, MSO56, MSO58, MSO58LP, MSO64 Help 79
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