Chapter 4
121
Performance Tests
3. Multiple Response Rejection Test
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19.On the spectrum analyzer, press
CENTER FREQUENCY
and tune to a multiple response
by entering the frequency value for the corresponding band listed below:
for an 11974A: 35.226200 GHz (n
′
= 6+)
for an 11974Q: 41.169650 GHz (n
′
= 8+)
for an 11974U: 49.919650 GHz (n
′
= 8+)
for an 11974V: 58.279767 GHz (n
′
= 12+)
20.Record the above frequency in
on page 144 as Multiple Response Frequency
#1. Press
PEAK SEARCH
to place the delta marker at the top of the multiple response.
The absolute value of the delta marker amplitude is the multiple response rejection.
NOTE
If the signal is buried in the noise floor, reduce the video bandwidth to 100 Hz
to help identify the signal. At some frequencies, however, instrument
performance is so good that an image response may not be visible.
21.Record the multiple response rejection in
on page 144 as Multiple Response
Rejection #1.
22.On the spectrum analyzer, press
CENTER FREQUENCY
and tune to the next multiple
response by entering the frequency value for the corresponding band listed below:
for an 11974A: 36.083269 GHz (n
′
= 6
−
)
for an 11974Q: 41.973150 GHz (n
′
= 8
−
)
for an 11974U: 50.723150 GHz (n
′
= 8
−
)
for an 11974V: 59.029700 GHz (n
′
= 12
−
)
23.Record the above frequency in
on page 144 as Multiple Response Frequency
#2. Press
PEAK SEARCH
to place the delta marker at the top of the multiple response.
The absolute value of the delta marker amplitude is the multiple response rejection.
24.Record the multiple response rejection in
on page 144 as Multiple Response
Rejection #2.
25.Set the synthesized sweeper for a CW signal at the frequency listed below for the
corresponding band:
for an 11974A: 33.25 GHz
for an 11974Q: 41.50 GHz
for an 11974U: 50.00 GHz
for an 11974V: 62.50 GHz
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 ...