Automatic Fixture Removal

AFR:CALC:LP

Sets low pass mode (Fstart = Fstep), changing Fstart:

Fstart - start frequency

Fstep - step frequency

AFR:CALC:LP:10M

Sets low pass mode (Fstart = Fstep), changing Fstep and Fstart to 10 MHz:

Fstart - start frequency

Fstep - step frequency

AFR:CALC:STEP:DUT

Performs input and output reflection measurement of the fixture with the DUT. Measurement results are used to correct the resultant S-parameters of the fixture, specifically the reflection coefficients. Other S-parameters remain unchanged from the previous measurement steps, including the entered calibration plane offset values.

AFR:CALC:STEP:REF:OFFS

1xReflect method.

Sets the offset value of the fixture calibration plane in the <Step> measurement step.

First, activate the calibration plane offset mode by the AFR:SYST:STEP<Step>:REF:OFFS 1 command.

AFR:CALC:STEP:REF:OPEN

1xReflect method.

Performs fixture reflection measurement in the Open state at the <Step> measurement step.

First, activate the measurement mode by the AFR:SYST:STEP<Step>:REF:OPEN 1 command.

AFR:CALC:STEP:REF:SHOR

1xReflect method.

Performs fixture reflection measurement in short-circuit mode (Short state) at the <Step> measurement step.

First, activate the measurement mode by the AFR:SYST:STEP<Step>:REF:SHOR 1 command.

AFR:CALC:STEP:THRU

2xThrough method.

Performs S-parameters measurement of two connected fixtures at the <Step> measurement step. The command is valid for all possible configuration sets: A-B, A-A aux, B-B aux.

AFR:CALC:STEP:THRU:OFFS

2xThrough method.

Sets the offset values of the fixture calibration plane at the <Step> measurement step.

First, activate the calibration plane offset mode by the command AFR:SYST:STEP<Step>:THRU:OFFS 1.

AFR:CALC:STEP:THRU:REFOFFS:OPEN

2xThrough → 1xReflect calibration plane offset determination by 1xReflect method.

Performs fixture reflection measurements in the Open state at the <Step> measurement step to automatically determine the offset values of the calibration plane.

First, activate the measurement mode by the AFR:SYST:STEP<Step>:THRU:REFOFFS:OPEN 1 command.

AFR:CALC:STEP:THRU:REFOFFS:SHOR

2xThrough measurement → 1xReflect calibration plane offset determination by 1xReflect method.

Performs fixture reflection measurements in the Short state at the <Step> measurement step to automatically determine the offset values of the calibration plane.

First, activate the measurement mode by the AFR:SYST:STEP<Step>:THRU:REFOFFS:SHOR 1 command.

AFR:CALC:ZCON

Sets a custom impedance value.