ES User’s Guide 4-43
Using Instrument Functions
Using Reference Tracking
To Track the Peak Point
1. If you want to move the reference position (indicated by the symbol
on the left side of the display), press
and then use the front panel knob, the keys, or the
numeric keypad to enter a new reference position. A number is
assigned to each possible reference position. See Figure 4-19.
Figure 4-19 Reference Positions
2.
Press . The
reference level is now adjusted with each sweep so that the peak
point on the measurement trace falls on the reference line. Note that
the y-axis is now a relative scale, with all amplitude values
referenced to the reference line.
3. To turn reference tracking off, press
. The y-axis reverts to its previous
scale format, and the reference level is readjusted so that the
measurement trace is placed correctly on the display for absolute
measurements.
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