To Track The Peak Point; Reference Positions - HP 8711C User Manual

Rf network analyzers
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Using Instrument Functions
Using Reference Tracking
1. If you want to move the reference position (indicated by the ) symbol on
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the left side of the display), press (SCALE] Befererzce Positioz~ and
then use the front panel knob, the @) (IJJ keys, or the numeric keypad to
enter a new reference position. A number is assigned to each possible
reference position. See Figure 4-19.
9
8
7
8
5
4
3
2
1
0
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.
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.
Tel:0755-83589391
Figure 4-l 9. Reference Positions
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