I
-
I
-
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 (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.
10
9
8
7
8
5
4
3
2
1
0
po652b-c
Figure
4-l
9. Reference Positions
2.
Press
CSCALE)
Refezert~e Tr&&ing
Track
Peti.
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
[SCALE)
R&ZWLC~
Tracking
Off .
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.
4-48
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深圳市盛腾仪器仪表有限公司 Tel:0755-83589391 Fax:0755-83539691 Website: www.Sengt.com
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