Chapter 4
133
Performance Tests
5. 3 dB Bandwidth
P
e
rf
orm
a
nce
T
est
s
22.Calculate the 3 dB bandwidth at this frequency using the following equation:
where n represents the harmonic number listed below:
11974A: 8
11974Q: 10
11974U: 10
11974V: 14
NOTE
The above equation applies only when the spectrum analyzer is an 8566B.
When using an 8563A or 71000C spectrum analyzer, use the following
equation:
23.Set the synthesized sweeper for a CW signal at the frequency listed below:
for an 11974A: 33.25 GHz
for an 11974Q: 41.5 GHz
for an 11974U: 50 GHz
for an 11974V: 62.5 GHz
24.Set the center frequency of the spectrum analyzer by pressing
CENTER FREQUENCY
,
then entering the corresponding value for the band listed below:
for an 11974A: 33.25 GHz
for an 11974Q: 41.5 GHz
for an 11974U: 50 GHz
for an 11974V: 62.5 GHz
25.Repeat
through
for this center frequency and record the results in
26.Set the synthesized sweeper for a CW signal at the frequency listed below:
for an 11974A: 40 GHz
for an 11974Q: 50 GHz
for an 11974U: 60 GHz
for an 11974V: 75 GHz
High DAC number
Low DAC number
–
1
–
63
----------------------------------------------------------------------------------------------------------
46
n
×
×
MHz
(
)
High DAC number
Low DAC number
–
1
–
255
----------------------------------------------------------------------------------------------------------
65
n
×
×
MHz
(
)
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 ...