10 | Keysight | E4991B Impedance Analyzer - Data Sheet
Measurement Support Functions (continued)
Open/short compensation:
When a device is connected to a terminal that is extended from the calibration
reference plane, make open and/or short states at the device contact and measure
each kind of compensation data.
Calibration/compensation data measurement point
Fixed frequency mode:
Obtain calibration/compensation data at fixed frequency covering the entire frequency
range of the E4991B. In device measurement, calibration or compensation is applied
to each measurement point by using interpolation. Even if the measurement points
are changed by altering the sweep setups, you don’t need to retake the calibration/
compensation data.
User-defined frequency mode:
Obtain calibration/compensation data at the same frequency as used in actual device
measurement, which are determined by the sweep setups. Each set of calibration/
compensation data is applied to each measurement at the same frequency point. If the
measurement points are changed by altering the sweep setups, calibration/compensa-
tion data become invalid and retaking calibration/compensation data is recommended.
Trigger
Trigger mode:
Internal, external (external trigger input connector), bus (GPIB/LAN/USB), manual
(front key)
Averaging
Types:
Sweep-to-sweep averaging, point averaging
Setting range:
Sweep-to-sweep averaging: 1 to 999 (integer)
Point averaging: 1 to 999 (integer)
Display
LCD display :
Type/size: 10.4 inch TFT color LCD
Resolution: XGA (1024 x 768)1
Number of traces:
Data trace: 4 data traces per channel (maximum)
Memory trace: 4 memory traces per channel (maximum)
Trace data math:
Data + Memory, Data - Memory, Data x Memory, Data/ Memory, Offset, Equation
Editor
Format:
For scalar parameters: linear Y-axis, log Y-axis
For complex parameters: Z, Y, [r, µr: polar, complex; G:
polar, complex, Smith, admittance
1. Valid pixels are 99.99% and more. Below 0.01% of fixed points of black, green, or red are not
regarded as failure.
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