Agilent Technologies E7401A, Руководство программиста

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212 Chapter 5
Language Reference
CALCulate:LLINe Subsection
<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:
For linear amplitude interpolation and log frequency
interpolation, the interpolation is computed as:
For log amplitude interpolation and linear frequency
interpolation, the interpolation is computed as:
For log amplitude interpolation and log frequency interpolation,
the interpolation is computed as:
Front Panel
Access:
Display, Limits, X Axis Units Freq Time
Display, Limits, Limit 1|2, Edit
Display, Limits, Limit 1|2, Edit, Point
Display, Limits, Limit 1|2, Edit, Frequency
Display, Limits, Limit 1|2, Edit, Amplitude
Display, Limits, Limit 1|2, Edit, Connected
Display, Limits, Limit 1|2, Edit, Delete Point
y
y
i 1 +
y
i
–
f
i 1 +
f
i
–
---------------------- f
f
i
–
( )
y
i
+ =
y
y
i 1 +
y
i
–
log f
i 1 +
log f
i
–
--------------------------------------- log f log f
i
–
( )
y
i
+ =
log y
log y
i 1 +
log y
i
–
f
i 1 +
f
i
–
----------------------------------------- f
f
i
–
( )
log y
i
+ =
log y
log y
i 1 +
log y
i
–
log f
i 1 +
log f
i
–
----------------------------------------- log f
log f
i
–
( )
y log
i
+ =