
ES User’s Guide
4-39
Using Instrument Functions
Using Limit Testing
Additional Notes on Limit Testing
Stimulus and
Amplitude Values
In frequency sweep mode, the stimulus values are interpreted as
frequencies; in power sweep mode, the stimulus values are interpreted
as output power levels.
CAUTION
The values entered for stimulus and amplitude are unitless. If the
measurement format is changed after limit lines are set, the amplitude
values do not automatically change. Therefore, you should select the
format you want to use before entering your limits.
Calculating the
Frequency of a
Data Point
The frequency of each data point is calculated using the following
formula:
where pt number ranges from 1 (for the leftmost display point) to
number of points (the rightmost display point).
Limit Testing and
Measurement
Points
Limit testing is only performed on actual data points, not interpolated
values between them. The limit lines or points that you enter are
converted to values at each measurement point. Most of the time this has
little or no effect on the validity of the limit testing. However, note the
following examples of problems that could arise when using limit lines.
Freq
pt number
(
)
pt number
1
–
(
)
stop freq
start freq
–
×
number of points
1
–
-----------------------------------------------------------------------------------------------------------------------------
start freq
+
=
Summary of Contents for HP 8712ES
Page 8: ...viii ES User s Guide ...
Page 17: ...ES User s Guide 1 1 1 Installing the Analyzer ...
Page 34: ...1 18 ES User s Guide Installing the Analyzer Preventive Maintenance ...
Page 35: ...ES User s Guide 2 1 2 Getting Started ...
Page 52: ...2 18 ES User s Guide Getting Started Performing the Operator s Check ...
Page 53: ...ES User s Guide 3 1 3 Making Measurements ...
Page 135: ...ES User s Guide 4 1 4 Using Instrument Functions ...
Page 159: ...ES User s Guide 4 25 Using Instrument Functions Using Markers Figure 4 15 Delta Marker Mode ...
Page 165: ...ES User s Guide 4 31 Using Instrument Functions Using Limit Testing Figure 4 16 Limit Lines ...
Page 224: ...4 90 ES User s Guide Using Instrument Functions Using an External VGA Monitor ...
Page 225: ...ES User s Guide 5 1 5 Optimizing Measurements ...
Page 246: ...5 22 ES User s Guide Optimizing Measurements Measuring Devices with Long Electrical Delay ...
Page 247: ...ES User s Guide 6 1 6 Calibrating for Increased Measurement Accuracy ...
Page 281: ...ES User s Guide 7 1 7 Front Rear Panel ...
Page 306: ...7 26 ES User s Guide Front Rear Panel Line Module ...
Page 307: ...ES User s Guide 8 1 8 Hardkey Softkey Reference ...
Page 410: ...8 104 ES User s Guide Hardkey Softkey Reference Z ...
Page 411: ...ES User s Guide 9 1 9 Specifications ...
Page 469: ...ES User s Guide 10 1 10 Safety and Regulatory Information ...
Page 475: ...ES User s Guide 10 7 Safety and Regulatory Information Regulatory Information ...
Page 476: ...10 8 ES User s Guide Safety and Regulatory Information Regulatory Information ...
Page 477: ...ES User s Guide 11 1 11 Factory Preset State and Memory Allocation ...