Acquire the Sign
al
12. Push Height on t
he lower menu repeatedly
to set the signal height. You only need to do
this once to set the height for all of the digital
channels.
Quick Tip
Use the zoom feature to see multiple cycles of the signal in the upper part, and a single cycle in the lower part of the
display. (See page 127, Using Wave Inspector to Manage Long Record Length Waveforms.)
When setting up the logic probe, the first set of eight leads (pins 7 to 0) on the logic probe are marked GROUP 1 on the
lead box. The second set (pins 15 to 8) is marked GROUP 2.
Theleadforthefirst channel in each group is colored blue for easy identification while you connect the logic probe to the
device under test. The other leads are gray.
Digital channels store a high or low state for each sample. The threshold that separates high from low can be set
separately for each channel.
When and Why to Turn On MagniVu
For MSO4000B Series only, MagniVu allows you to have higher resolution to accurately determine edge placement. This
helps you to make precise timing measurements on digital edges. You can see up to 32 times more detail than with
normal d
igital channel sampling.
The Magn
iVu record is acquired in parallel to the main digital acquisition and is available at any time, running or stopped.
MagniVu provides an ultra high resolution view of your data sampled at a maximum resolution of 60.6 ps for 10,000 points
centered around the trigger.
NOTE. M
agniVu centers itself around the trigger point. If you turn MagniVu on while using a large record length and you are
looking somewhere other than the trigger point, then the digital signal may be off screen. In most of these cases, you can find
the digital record by looking for the digital signal in the upper overview and panning accordingly.
NOTE.
You should turn on M agniVu when light gray shading is displa yed to indicate the uncertainty of the edge position. If
the shading is not displayed, you do not need to use MagniVu. (See page 102, Viewing Digital Channels.)
Using MagniVu
1. Push D15 – D0.
74 MSO4000B and DPO 4000B Series Oscilloscopes User Manual
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