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Using Instrument Functions

Using Reference Tracking

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

(-1

IW~MWLCEI

PesitfoiEt and

then use the front panel knob, the

ch)

(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.

Figure

4-I

9. Reference Positions

Press (SCALE) E&ez~n~e

Tretc3fing

TX%&

PO&

. 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.

turn reference tracking off, press

(=J

I’W~~WBXI

TracHng

DfP

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.

4-51

I-

HP 8712C User Manual

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