7.
To
create a
limit line
that tests
the high
side
of
the
bandpass
lter
,
press:
N
N
NN
NN
NN
NN
N
ADD
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
STIMULUS VALUE
4
146
54
M/
5
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
UPPER LIMIT
4
0
65
54
x1
5
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
LOWER
LIMIT
4
0
200
5
4
x1
5
N
N
N
N
N
N
N
NN
NN
NN
N
DONE
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
LIMIT
TYPE
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
FLAT
LINE
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
RETURN
N
N
N
N
N
N
N
N
N
N
N
ADD
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
N
STIMULUS
VALUE
4
160
5
4
M/
5
N
N
N
N
N
N
NN
NN
NN
NN
DONE
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
LIMIT TYPE
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
SINGLE POINT
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
RETURN
Figure
2-37.
Example
Flat
Limit Lines
Creating
a
Sloping
Limit
Line
This
example
procedure
shows
you
how
to
make
limits
that
test the
shape factor
of a
SA
W
lter
.
The
following
limits
are
set:
Frequency
Range
:
:
:
:
:
:
:
::
::
::
::
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
::
::
::
::
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
:
::
::
::
::
P
ower
Range
123
MHz to
125 MHz
::
::
::
::
:
:
:
:
:
:
:
:
:
:
:
::
::
::
::
::
::
::
:
:
:
:
:
:
:
:
:
:
:
::
::
::
::
::
::
::
0
65
dB
to
0
26
dB
144
MHz
to
146
MHz
:
:
:
:
:
:
::
:
:
:
:
:
:
:
:
:
:
::
:
:
:
:
:
:
:
:
:
:
:
::
:
:
:
:
:
:
:
:
:
:
::
:
:
:
:
:
:
:
:
:
:
:
::
0
26
dB
to
0
65
dB
1. T
o access the limits menu and activate the limit lines
, press:
4
SYSTEM
5
NNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNN
LIMIT MENU
NNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN
NNN
LIMIT LINE ON
NNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN
NNNNNNNNN
EDIT LIMIT LINE
NNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNN
CLEAR LIST
NNNNNNNNNNN
YES
2. T
o establish the start frequency and
limits for a sloping limit line that tests the low side of
the lter,press:
NNNNN
NNNNNN
ADD
NNNNNNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN
STIMULUS VALUE
4
123
54
M/
5
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
UPPER LIMIT
4
0
65
54
x1
5
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
LOWER LIMIT
4
0
200
54
x1
5
NNNNNNNNNNNNNN
DONE
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
LIMIT TYPE
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
SLOPING LINE
NNNNNNNNNNNNNNNNNNNN
RETURN
Making Measurements 2-39