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Operation
Using an E4407B Spectrum Analyzer or 7405A EMC Analyzer
Band Selection
1. If necessary, configure the analyzer for preselected external mixing by pressing the
following keys:
,
Input/Output
Input Mixer
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
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
Conversion-Loss Data"
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,
. Select a correction set for use with external mixing. The recommended set
Corrections
to use is
although any available set could be used. Press
Other
underlined.
82
(Ext),
,
Mixer Config
Mixer Type
,
,
Ext Mix Band
33-50 GHz
on page 84
(Presel)
(Q)
"Using a
"Manually Entering
Amplitude Y Scale
Correction
on page 38.
,
,
More
until On is
Chapter 3
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