Fixture Compensation - Keysight E4990A Help Manual

these keys, the value is converted to the other unit and displayed on
the bottom line of the setting parameter area in small letters. You
can also see the converted value in the setting parameter area by
pressing the other key.
2. Press Extension > toggle between ON|OFF to turn ON/OFF the port
extension compensation.
Other topics about Calibration

Fixture Compensation

Fixture Compensation Procedure
•
Turning the Fixture Compensation On or Off
•
Defining the Standard Values for Fixture Compensation
•
Other topics about Calibration
Fixture Compensation Procedure
Perform the fixture compensation as follows:
REDUCE OSC LEVEL or BRIDGE UNBALANCED may occur during
the Short correction and measurement may not be correct. When
you set the oscillator level for measurement to 500 mV or even
greater, set it to 500 mV for the fixture correction.
acquisition processes: OPEN, SHORT, and LOAD, but you do not need
to obtain all three types of compensation data when you perform
fixture compensation. Each type of compensation data can be turned
on or off independently for measurement. For normal measurement,
it is recommended that you perform fixture OPEN compensation and
fixture SHORT compensation.
a measurement path are terminated with the characteristic
impedance of 50 Ω at a measurement frequency of 15 MHz or higher
frequency for no cable extension (direct connection type test fixture)
or a measurement frequency of 5.2083 MHz or higher for 1 m/2 m
cable extension, the trace may contain a gap at 15 MHz (or 5.2083
MHz). You can remove this gap by executing the Load correction.
1. Press the
2. Select the calibration (compensation) data acquisition points in
accordance with
If the oscillator level is greater than 500 mV, an error,
Fixture compensation consists of three compensation data
For the E4990A, because the sending and receiving ends of
key to display the Calibration Menu.
Cal
Selecting Calibration/Compensation Data
Measurement
Points.
119