Chapter 3
87
Operation
Using a PSA Series Spectrum Analyzer
O
p
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ati
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n
9. Repeat steps 7 and 8 until the green LEDs are lit at both frequencies without additional
adjustments.
Band Selection
1. If necessary, configure the analyzer for preselected external mixing by pressing the
following keys:
Input/Output
,
Input Mixer
(Ext),
Mixer Config
,
Mixer Type
(Presel)
2. If necessary, adjust the tracking of the Agilent 11974 to the analyzer being used for
preselected external mixing, by using the Frequency Tracking Calibration procedure
above.
3. Press the following keys to select the desired mixing band: (In this example, we will use
an Agilent 11974Q (33.0 to 50.0 GHz) to view a 40 GHz, -15 dBm signal.)
Input/Output
,
Input Mixer
,
Ext Mix Band
,
33-50 GHz
(Q)
Amplitude Calibration
1. Enter the conversion loss versus frequency data from one of three sources.
• From a Conversion Loss Data Disk, supplied with your mixer. See
Conversion-Loss Data Disk with the ESA or PSA Series Analyzers”
• Data from the calibration sheet supplied with your mixer.
• From conversion-loss data located on the mixer body label. See
2. To correct for the conversion-loss of the harmonic mixer in use, the analyzer amplitude
correction feature is used. Access this feature by pressing,
Amplitude Y Scale
,
More
,
Corrections
. Select a correction set for use with external mixing. The recommended set
to use is
Other
although any available set could be used. Press
Correction
until On is
underlined.
Summary of Contents for 11974 Series
Page 5: ...4 ...
Page 8: ...7 General Information 1 General Information ...
Page 28: ...27 Installation 2 Installation ...
Page 47: ...46 Chapter2 Installation Returning Equipment for Service Installation ...
Page 48: ...47 Operation 3 Operation ...
Page 97: ...96 Chapter3 Operation Using 8561A 62A 62B Spectrum Analyzers Operation ...
Page 98: ...97 Performance Tests 4 Performance Tests ...
Page 148: ...147 Safety and Regulatory Information 5 Safety and Regulatory Information ...