
4-44
ET User’s Guide
Using Instrument Functions
Using Reference Tracking
To Track a Frequency
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
.
2. Press
.
Use the front panel knob, the
keys, or the numeric
keypad to enter the frequency of interest.
3. 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. 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.
SCALE
Reference Position
SCALE
Reference Tracking Set Track Frequency
SCALE
Reference Tracking Track Frequency
SCALE
Reference Tracking OFF
Summary of Contents for HP 8712ET
Page 8: ...viii ET User s Guide ...
Page 17: ...ET User s Guide 1 1 1 Installing the Analyzer ...
Page 34: ...1 18 ET User s Guide Installing the Analyzer Preventive Maintenance ...
Page 35: ...ET User s Guide 2 1 2 Getting Started ...
Page 52: ...2 18 ET User s Guide Getting Started Performing the Operator s Check ...
Page 53: ...ET User s Guide 3 1 3 Making Measurements ...
Page 118: ...3 66 ET User s Guide Making Measurements Measuring Impedance Magnitude ...
Page 119: ...ET User s Guide 4 1 4 Using Instrument Functions ...
Page 143: ...ET User s Guide 4 25 Using Instrument Functions Using Markers Figure 4 15 Delta Marker Mode ...
Page 149: ...ET User s Guide 4 31 Using Instrument Functions Using Limit Testing Figure 4 16 Limit Lines ...
Page 207: ...ET User s Guide 5 1 5 Optimizing Measurements ...
Page 226: ...5 20 ET User s Guide Optimizing Measurements Measuring Devices with Long Electrical Delay ...
Page 227: ...ET User s Guide 6 1 6 Calibrating for Increased Measurement Accuracy ...
Page 266: ...6 40 ET User s Guide Calibrating for Increased Measurement Accuracy Checking the Calibration ...
Page 267: ...ET User s Guide 7 1 7 Front Rear Panel ...
Page 292: ...7 26 ET User s Guide Front Rear Panel Line Module ...
Page 293: ...ET User s Guide 8 1 8 Hardkey Softkey Reference ...
Page 395: ...ET User s Guide 9 1 9 Specifications ...
Page 397: ...ET User s Guide 9 3 Specifications System Performance ...
Page 443: ...ET User s Guide 10 1 10 Safety and Regulatory Information ...
Page 449: ...ET User s Guide 10 7 Safety and Regulatory Information Regulatory Information ...
Page 450: ...10 8 ET User s Guide Safety and Regulatory Information Regulatory Information ...
Page 451: ...ET User s Guide 11 1 11 Factory Preset State and Memory Allocation ...