Agilent Technologies 4395A - Page 276

Stabilizing
the
Trace
\
Max "
(or \
Min
")
appears
on
the
right
of
the
grid
when
the
maximum
(minimum)
hold function
is
activated.
T
oturn
o
the
maximum
or
minimum
hold,
press
4
Displa
y
5
N
NN
NN
N
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N
N
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N
N
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N
N
N
N
N
N
N
N
DATA
HOLD [
]
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
NN
NN
N
HOLD:
OFF .
Figure
9-11.
Maximum
Holding
the
Drifting
Signal
T
o
Capture
an
Unstable
Signal
Using
Signal
Track
1.
Press
4
Displa
y
5
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
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N
N
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N
N
N
N
NN
N
N
N
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N
N
N
DUAL
CHAN
on
OFF
to
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
N
ON
off
.
2.
Press
4
Chan
1
5
.
3.
Press
4
Sea
rch
5
.
4.
Press
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
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N
N
N
N
N
N
N
N
N
N
NN
SEARCH:
PEAK
to
move
the
marker
to
the peak
of the
drifting
test
signal.
5.
T
oggle
N
N
N
N
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N
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NN
NN
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N
N
N
N
NN
NN
N
N
N
N
SIGNAL
TRK
on
OFF
to
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
ON
off
.
The
signal
track
function
captures
the
peak
that is
indicated by
the marker
and
places
it
in
the
center
of
the
grid
for
each
sweep
.If
the peak
is unstable
horizontally
,
use
this
function.
The
analyzer
automatically
changes
the
center
frequency
to
keep the
peak in
the center
of the
grid.
Figure
9-12
shows
a
display
when signal
track is
ON at
channel 1.
Figure 9-13
shows a
display
after
the
analyzer
sweeps
a
few
times
.
At
channel 1,
the
center
frequency
has
been
changed
to
maintain the drifting signal at the center of the display
. Channel 2 shows that signal frequency
has drifted to a higher frequency
.
9-14 Advanced Techniques for Optimizing Measurements