HP 8753D - Page 118

2. T
o choose
the measurement
parameters,
press:
4
PRESET
5
4
MEAS
5
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Trans:FWD
S21
(B/R)
4
ST
ART
5
4
119
5
4
M/

5
4
STOP
5
4
149
5
4
M/

5
4
SCALE
REF
5
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AUTO
SCALE
3. Substitute
athru
for the
device
under
test
and
perform
a
frequency
response
correction.
Refer to
\Calibrating the
Analyzer,"
located
at
the
beginning
of
this
Chapter
,
for
a
detailed
procedure.
4. Reconnect
your device
under
test.
5. T
o transform
the
data
from
the
frequency
domain
to
the
time
domain
and
set
the
sweep
from 0
sto
6

s
,
press:
4
SYSTEM
5
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TRANSFORM
MENU
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BANDPASS
N
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NN
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N
TRANSFORM
ON
4
ST
ART
54
0
54
G/n
5
4
STOP
5
4
6
5
4
M/

5
The
other
time
domain
modes
,
low
pass
step and
low pass
impulse,
are
described
in
Chapter
6,
\Application
and
Operation
Concepts
."
6.
T
o
better
view
the
measurement
trace
, press:
4
SCALE
REF
5
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NN
REFERENCE
VALUE
and
turn
the
front
panel
knob
or
enter
a
value
from
the
front
panel
keypad.
7.
T
o
measure
the
peak
response
from
the
main path,
press:
4
MARKER
F
CTN
5
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MKR
SEARCH
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NN
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SEARCH:
MAX
The
three
responses
shown
in
Figure
2-50
are
the
RF
leakage
near
zero
seconds
,
the
main
travel
path
through
the
lter
,
and
the
triple
travel
path
through
the
lter
.
Only the
combination
of
these
responses
was
evident
to
you
in the
frequency domain.
Figure 2-50. Time Domain Transmission Example Measurement
Making Measurements 2-69