Fixed/ Relative - Keysight x-series User Reference Manual

The Interpolation modes determine how limit values are computed between points in the limit table. The
appearance of a limit trace is also affected by the amplitude scale, which may be linear or logarithmic.
Key Path
Remote Command
Example
Dependencies
Preset
State Saved
Range
Initial S/W Revision
Amplitude Interpolation
Sets the interpolation to linear or logarithmic for the specified limiting points set, allowing you to determine
how limit trace values are computed between points in a limit table. See
792 for the equations used to calculate limit values between points.
Key Path
Remote Command
Example
Preset
State Saved
Range
Initial S/W Revision

Fixed/ Relative

Accesses a menu that lets you specify that the selected limit is relative to either the Center Frequency or
the Reference level.
Key Path
Readback
EMI Receiver Mode Reference
Meas Setup, Limits, Properties, Interpolation
:CALCulate:LLINe[1]|2|...|6:CONTrol:INTerpolate:TYPE LOGarithmic |
LINear
:CALCulate:LLINe[1]|2|...|6:CONTrol:INTerpolate:TYPE?
CALC:LLIN4:CONT:INT:TYPE LIN Sets limit line 4 frequency interpolation to linear.
This key is grayed out if Time is the selected X Axis Units.
Linear, not affected by Mode Preset, preset by Restore Mode Defaults.
Saved in instrument state
Log|Lin
A.13.00
Meas Setup, Limits, Properties, Interpolation
:CALCulate:LLINe[1]|2|...|6:AMPLitude:INTerpolate:TYPE LOGarithmic |
LINear
:CALCulate:LLINe[1]|2|...|6:AMPLitude:INTerpolate:TYPE?
CALC:LLIN:AMPL:INT:TYPE LIN Sets limit line 1 amplitude interpolation to linear.
Linear, not affected by Mode Preset, preset by Restore Mode Defaults.
Saved in instrument state
Log|Lin
A.13.00
Meas Setup, Limits, Properties
[Fixed] – if both Relative to CF and RL set to OFF.
[Rel to RL] – if only RL set to ON.
[Rel to CF] – if only CF set to ON.
10 Monitor Spectrum Measurement
"Frequency Interpolation" on page
Meas Setup
793