Agilent Technologies 4395A - Page 243

P
erforming
Time
Gated Spectrum
Analysis
P
erforming Time
Gated Spectrum
Analysis
Time
gated spectrum
analysis
involves
the
following
steps:
1.
Determining the
Gate
Trigger
P
arameters
2.
Connecting the
Gate
Trigger
Source
3.
Setting
the
Center
and
Span
Frequency
4.
A
djusting
the
Gate
Trigger
5.
Setting
the
RBW/VBW
and
Using
the
A
veraging
Function
6.
Measuring
the
Spectrum
Note
P
erforming
this
measurement
requires Option
1D6.
Step
1:
Determining
the
Gate
Trigger
P
arameters
.
1.
Connect
the
target signal
and
the
trigger
signal
to
the
input
port
of
an
oscilloscope
(see
Figure
8-23
).
Figure 8-23. Time Domain Measurement Conguration
2. Adjust the oscilloscope to display the two signals
.
3. Using the oscilloscope
, check the
following parameters:
For the target signal:
Pulse repetition width (PRI)
Signal width (  )
Signal delay (SD)
For the trigger signal:
Pulse width (if you use the level trigger mode)
Analyzing the Measurement Results 8-41