HP 8753D - Page 93

Osetting
Limit
Lines
The
limit
oset
functions
allow
you
to
adjust
the
limit
lines to
the frequency
and output
level
of
your
device
.
F
or
example
,
you
could
apply the
stimulus oset
feature for
testing tunable
lters
.
Or
,
you
could
apply the
amplitude oset
feature for
testing variable
attenuators,
or
passband
ripple
in
lters
with
variable
loss
.
This
example
shows
you
the
oset
feature
and
the
limit
test failure
indications that
can appear
on
the
analyzer
display
.
1.
T
o
oset
all
of
the segments
in the
limit table
by
a
xed
frequency
,
(for
example
,
3
MHz),
press:
4
SYSTEM
5
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
LIMIT MENU
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
LIMIT LINE
OFFSETS
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
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N
N
N
N
N
N
N
N
N
N
N
N
STIMULUS
OFFSET 4
3
5
4
M/

5
The
analyzer
beeps
and
a
FAIL
notation
appears on
the analyzer
display
,
as
shown
in
Figure
2-40
.
Figure
2-40.
Example
Stimulus
Oset
of
Limit
Lines
2.
To
return to
0Hz
oset, press:
N
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
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N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
STIMULUS OFFSET
4
0
54
x1
5
3. T
o oset all of the segments in the limit
table by a xed amplitude
, press:
NNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNN
AMPLITUDE OFFSET
4
5
54
x1
5
The analyzer beeps and a
FAIL notation
appears on the analyzer display
.
4. T
o return to 0 dB oset,
press:
NNNN
NNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNN
AMPLITUDE OFFSET 4
0
54
x1
5
2-44 Making Measurements