HP 8590 E & L Series Spectrum Analyzers and HP 8591C Cable TV ...

LIMIMIRROR
Mirror Limit Line
Reflects the current definition about the amplitude axis at the largest frequency (for a limit line
based on frequency) or the largest sweep time (for a limit line based on the sweep time) in the
definition.
Syntax
Related Commands: LIMILINE, LIMISEG, LIMISEGT, SENTER, SENTERT.
Example
10 OUTPUT 718 , "IP;CF300MHZ;SPlOOMHZ;"
20 OUTPUT 718 ; "LIMIDEL;"
30 OUTPUT 718;"LIMIMODE UPPER;"
35 OUTPUT 718;"LIMIFT FREQ;"
40 OUTPUT 718;"LIMISEG 250MHZ,-60DB,FLAT;"
50 OUTPUT 718;"LIMISEG 290MHZ ,-50DB,SLOPE;"
60 OUTPUT 718;"LIMISEG
!
295MHZ,-15DB,SLOPE;"
70 OUTPUT 718;"LIMISEG 300MHZ,-lODB,SLOPE;"
80 OUTPUT 718;"LIMIMIRROR;"
90 OUTPUT 718;"LIMITEST ON;"
100 END
The example results in the limit-line table shown in the following table.
-
1EG -fWART-FREQ
1 250.0 MHz
2
3
4
5
6
7
8-
290.0 MHz
295.0 MHz
300.0 MHz
305.0 MHz
310.0 MHz
310.0 MHz
350.0 MHz
Initializes spectrum an&y- changes
the frequency and span.
Deletes any limit-line tables, sets
the table type to jixed.
SpecQks the upper limit-line table
Selects a limit line boxed on frequency.
Enters a value into the upper limitline
table.
Mirrors the upper limit-line entries.
Turns on the limit-line testing and
displays the limit lines.
You may notice that the LIMIMIRROR command may create more than one table entry for a
frequency (for example, see segment 6 in the above table). The LIMIMIRROR command creates
an extra segment so that the previous segment is explicitly ended at the correct amplitude.
5-280 Programming Commands