Port extension compensation is used to compensate an error caused by the electrical delay when the 7-mm port of the 42942A Terminal Adapter or 3.5-mm port of the 42941A Impedance Probe is extended with a one-port configuration.
Port extension compensation can be performed when 42942A Extension or 42941A Extension is chosen in adapter selection.
Perform the port extension compensation as follows:
Press Cal > Port Extension and input the desired port extension value.
You can set the port extension value in either electrical length or delay time. When the port extension value is set by one of 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.
Press Extension > toggle between ON|OFF to turn ON/OFF the port extension compensation.