Agilent Technologies ESA Series User's/Programmer's Reference page 246

Remote Command Reference
CALCulate:LLINe Subsection
Time is always in seconds. No unit is allowed in this parameter.
• <ampl> – amplitude values are in the current Y-axis units. Up to two amplitude
values can be provided for each x-axis value, by repeating <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 ignored 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 limits
<ampl> –120 dBm to +100 dBm
<connected> 0 or 1
Remarks: If two amplitude values are entered for the same frequency, a
single vertical line is the result. In this case, if an upper line is
chosen, the amplitude of lesser frequency (amplitude 1) is
tested. If a lower line is chosen, the amplitude of greater
frequency (amplitude 2) is tested.
For linear amplitude interpolation and linear frequency
interpolation, the interpolation is computed as:
y
--------------------- - f f
y =
f
For linear amplitude interpolation and log frequency
interpolation, the interpolation is computed as:
-------------------------------------- - log f log f
y =
log f
For log amplitude interpolation and linear frequency
interpolation, the interpolation is computed as:
log y
For log amplitude interpolation and log frequency interpolation,
the interpolation is computed as:
log y
Front Panel
Access: Display, Limits, X Axis Units Freq Time
Display, Limits, Limit 1|2, Edit
246
– y
i + 1 i ( )
– + y
i i
– f
i + 1 i
y – y
i + 1 i (
–
– log f
i + 1 i
log y – log y
i + 1 i
(
---------------------------------------- - f f
= –
f – f
i + 1 i
log y – log y
i + 1 i (
---------------------------------------- - log f log f
=
log f – log f
i + 1 i
)
+ y
i i
)
+ log y
i i
)
– + log y
i i
Chapter 5