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LIMISEG Enter Limit-Line Segment for Frequency
Example
10
OUTPUT
718;"IP;SNGLS;CF300MHZ;SPlOOMHZ;RB
3MHZ;"
20
OUTPUT
718;"LIMIDEL;"
30
OUTPUT
718;"LIMIMODE
UPPER;"
35
OUTPUT
718;"LIMIFT
FRED;"
40
OUTPUT
718;"LIMISEG
250MHZ
,-GODB,FLAT;"
50
OUTPUT
718;"LIMISEG
290MHZ,-60DB,SLOPE;"
60
OUTPUT
718;"LIMISEG
295MHZ,-15DB,FLAT;"
70
OUTPUT
718;"LIMISEG
305MHZ,-15DB,SLOPE;"
80
OUTPUT
718;"LIMISEG
3lOMHZ,-GODB,FLAT;"
90
OUTPUT
718;"LIMISEG
910MHZ,-60DB,FLAT;"
100
OUTPUT
718;"LIMIMODE
LOWER;"
110
OUTPUT 718;"LIMISEG
250MHZ,-75DB,FLAT;"
120
OUTPUT
718;"LIMISEG
SlOMHZ,-75DB,FLAT;"
130
OUTPUT 718;"LIMITEST
0N;TS;"
140
OUTPUT
718;"LIMIFAIL?;"
150
ENTER 718;A
160
DISP A
170
END
Initializes spectrum
an-
alyq
changes the fre-
quency,
span, and bandwidth.
Deletes the current limit-
line table, sets the table
type to
$xed.
Spec@es
the upper limit-
line table.
Selects a limit line based
on
frequent
y.
Adds segment to the up-
per limit-line table
Specifies the lower limit-
line table.
Adds
segment to the lower
limit-line table.
Enables limit-line testing.
Returns
the result of limit-
line testing.
Displays
the result.
Description
If the current limit line table contains lines based on sweep time (as opposed to a limit line
based on the frequency), executing LIMISEG will clear the current sweep time limit line table,
and set LIMIREL to OFF.
Each limit-line segment is specified with a starting frequency, an amplitude, and a segment
type. The segment type defines how the line segment is to extend from its starting point to the
next segment. The segment types are FLAT, SLOPE, and POINT.
n FLAT draws a zero-slope line between the coordinate point of the current segment and the
coordinate point of the next segment, producing limit-line values equal in amplitude for all
frequencies between the two points. If the amplitude values of the two segments differ, the
limit line will “step” to the value of the second segment.
w
SLOPE draws a straight line between the coordinate point of the current segment and the
coordinate point of the next segment, producing limit-line values for all frequencies between
the two points.
5-286 Programming Commands