
I
I
Using Instrument Functions
Using Reference Tracking
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.
Press
Ref
. Use the
front panel knob, the
keys, or the numeric keypad to enter the
frequency of interest.
Press
. The reference
level is now adjusted with each sweep so that the frequency of interest
falls on the reference line. Note that the y-axis is now a relative scale,
with all amplitude values referenced to the reference line. Also note that
a small arrow appears underneath the measurement trace at the point
where the frequency of interest intersects the reference line.
4. lb 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.
4-52
Содержание 8712C
Страница 1: ...I I User s Guide HP 8712C and HP 8714C RF Network Analyzers I ...
Страница 17: ...I 1 Installing the Analyzer ...
Страница 35: ...I 2 Getting Started ...
Страница 54: ...I 3 Making Measurements ...
Страница 81: ......
Страница 119: ...4 Using Instrument Functions ...
Страница 182: ...Using Instrument Functions Customizing the Display Figure 4 24 Expanded Display 4 64 ...
Страница 223: ...5 Optimizing Measurements ...
Страница 244: ...6 Calibrating for Increased Measurement Accuracy ...
Страница 280: ...7 Automating Measurements ...
Страница 298: ......
Страница 362: ...8 Front Rear Panel ...
Страница 373: ......
Страница 381: ......
Страница 386: ... 9 w I Suftkey Reference ...
Страница 477: ...I 10 Specifications and Characteristics ...
Страница 501: ...11 Safety and Regulatory Information ...
Страница 508: ...I 12 preset State and Memory Allocation ...
Страница 527: ...Index ...
Страница 559: ...Y X 9 91 YYW m m IiH rn 9 91 Z zeroing detectors 6 15 Index 33 ...