Agilent Technologies ESA-E Series Programmer's Manual page 180

Language Reference
CALCulate :LLINe Subsectio n
Front Pane l
Access : Display, Limits, Properties, X Axis Units Freq Tim e
Control Limit Line Frequency Interpolatio n
CALCulate :LLINe[1]12 :CONTrol :INTerpolate :TYPE
LOGarithmicILINear
CALCulate :LLINe[1]I2 :CONTrol :INTerpolate :TYPE ?
Selects the type of interpolation done for the frequency values of th e
designated limit line when comparing to measured data . This only
applies in the frequency domain . This function does not work in zero
span (when the analyzer is in the time domain) .
Remarks : Once this function is defined, the selected type i s
persistent . Persistent means that it retains the settin g
previously selected, even through a power cycle.
Front Panel
Access : Display, Limits, Modify, Freq Interp Log Li n
Define Limit Line Values
CALCulate :LLINe[1]12 :DATA
<x-axis>,<ampl>,<connected>{,<x-axis>,<ampl>,<connected> }
:CALCulate :LLINe[1]12 :DATA ?
Defines limit line values, and destroys all existing data . Up to 200
points may be defined for each limit . No units are allowed.
• <x-axis> - can be frequency or time values as specified b y
: CALCulate : LLINe : CONTrol : DOMain. Frequencies are always i n
Hz . Time is always in seconds . No unit is allowed in this parameter .
• <ampl> - amplitude values are always in units of dBm . Up to two
amplitude values can be provided for each x-axis value, by repeatin g
<x-axis> in the data list . No unit is allowed in this parameter.
• <connected> - connected values are either 0 or 1 . A 1 means this
point should be connected to the previously defined point to define
the limit line. A 0 means that it is a point of discontinuity and is not
connected to the preceding point . The "connected" value is ignore d
for the first point.
Example :
CALC : LLIN1 : DATA
1000000000,-20,0,200000000,-30, 1
Range:
<x-axis> -30 Gs to +30 Gs for time limits
<x-axis> -30 GHz to +350 GHz for frequency limit s
<ampl> -120 dBm to +100 dBm
<connected> 0 or 1
5-20 Chapter 5