Chapter 8
319
Frequency-Offset Measurement (Option 008)
Measurement of Mixers
8. Fre
q
uency
Of
fset
Me
asur
eme
nt
(Option 0
08)
NOTE
The basic frequency is a frequency range set by the
and
keys in the
STIMULUS block.
Follow the steps below to set the external signal source frequency.
Step 1.
Press
-
Frequency Offset
to display the “Frequency Offset Menu.”
Step 2.
Press
External Source
.
Step 3.
Set a frequency for the external signal source by using the following softkeys:
Softkey
Function
Multiplier
Sets a multiplier for the basic frequency
Divisor
Sets a divisor for the basic frequency
Offset
Sets an offset frequency for the basic frequency
Start
Sets a start frequency of the sweep range for the external
signal source
Stop
Sets a stop frequency of the sweep range for the external
signal source
NOTE
You can use both the
Multiplier
/
Divisor
/
Offset
key and the
Start
/
Stop
key to set the
external signal source frequency. The use of the
Multiplier
/
Divisor
/
Offset
key is
recommended as a rule. This allows you to automatically retain the offset value even if you
have changed the setting range of the basic frequency, since the external signal source
frequency is defined as a formula. Using the
Start
/
Stop
key will set M and O, which can be
determined from the specified frequency and the normal frequency, while maintaining the
preset D.
Procedures for setting external signal source power level
Follow the steps below to set the external signal source power level.
Step 1.
Press
-
Frequency Offset
to display the “Frequency Offset Menu.”
Step 2.
Press
External Source
to display the “External Source Menu.”
Step 3.
Press
Power
.
Step 4.
Set the power level.
NOTE
The mixer’s conversion loss and reflection coefficients are significantly affected by the
power level variation of the external signal source (LO signal). The
Slope
provided in the
“External Source Menu” allows you to set a correction in dB/GHz for the power level
variation that may occur when you change the external signal source frequency.
Summary of Contents for E5070B
Page 6: ......
Page 30: ...24 Contents ...
Page 34: ...28 Chapter1 Precautions Before contacting us ...
Page 286: ...280 Chapter6 Data Analysis Using the Equation Editor ...
Page 430: ...424 Chapter12 Optimizing Measurements Performing a Segment by Segment Sweep segment sweep ...
Page 538: ...532 Chapter15 Measurement Examples Executing Power Calibration ...
Page 634: ...628 AppendixB Troubleshooting Warning Message ...
Page 732: ...726 AppendixD Softkey Functions Trigger Menu ...
Page 740: ...734 AppendixE General Principles of Operation Data Processing ...
Page 760: ...754 AppendixF Replacing the 8753ES with the E5070B E5071B Comparing Functions ...