86
Chapter 3
Operation
Using a PSA Series Spectrum Analyzer
O
p
er
ati
o
n
Frequency Tracking Calibration This procedure is used to align the frequency of the
preselector filter of the Agilent 11974 to the tuned frequency of the analyzer. This
procedure should be followed any time that the Agilent 11974 is connected to a different
analyzer. The calibration should be periodically checked.
1. Set the Agilent 11974 rear-panel switches “ESA/PSA/70907B” and “LEDS” to the ON
position, and the other two switches to the OFF position, in order for the Agilent 11974
to properly scale to the tune signal of the analyzer.
2. Configure the analyzer for a preselected external mixer by pressing the following keys:
Preset
,
Factory Preset
(if present),
Input/Output
,
Input Mixer
,
Input Mixer
(Ext)
3. Set the desired band of operation. Press
Ext Mix Band
,
A
,
Q
,
U
, or
V
. (Note that only
A,Q,U, and V bands are available.)
4. Press,
Mixer Config
,
Mixer Type
(Presel).
5. Set the Presel Adjust to 0 MHz by pressing
AMPLITUDE
,
Presel Adjust
, 0,
MHz
.
6. Set the analyzer to zero span by pressing
SPAN
,
Zero Span
.
7. Set the analyzer center frequency by pressing
FREQUENCY
,
Center Freq
, and enter the
corresponding value for the appropriate mixer. (Refer to
) On the rear panel of
the Agilent 11974, adjust the corresponding potentiometer until one or both of the green
LEDs are lit.
8. Change the analyzer center frequency to the value indicated in
and again
adjust the corresponding potentiometer on the rear panel of the 11974 until one or both
of the green LEDs are lit.
Table 3-6.
Mixer
Agilent P/N
Analyzer Center
Frequency
Potentiometer
11974A
26.5 GHz
“26.5 GHz Adjust”
11974Q
33.0 GHz
“33.0 GHz Adjust”
11974U
40.0 GHz
“40.0 GHz Adjust”
11974V
50.0 GHz
“50.0 GHz Adjust”
Table 3-7.
Mixer
Agilent P/N
Analyzer Center
Frequency
Potentiometer
11974A
40.0 GHz
“40.0 GHz Adjust”
11974Q
50.0 GHz
“50.0 GHz Adjust”
11974U
60.0 GHz
“60.0 GHz Adjust”
11974V
75.0 GHz
“75.0 GHz Adjust”
Содержание 11974 Series
Страница 5: ...4 ...
Страница 8: ...7 General Information 1 General Information ...
Страница 28: ...27 Installation 2 Installation ...
Страница 47: ...46 Chapter2 Installation Returning Equipment for Service Installation ...
Страница 48: ...47 Operation 3 Operation ...
Страница 57: ...56 Chapter3 Operation Operating Hints Operation Figure 3 4 Setup Configuration for Remote Location of an 11974 ...
Страница 97: ...96 Chapter3 Operation Using 8561A 62A 62B Spectrum Analyzers Operation ...
Страница 98: ...97 Performance Tests 4 Performance Tests ...
Страница 107: ...106 Chapter4 Performance Tests Performance Test Procedures Performance Tests Figure 4 1 Performance Tests Setup ...
Страница 148: ...147 Safety and Regulatory Information 5 Safety and Regulatory Information ...