Agilent Technologies 87075C manual Performing the Test Set Cal with an ECal Module

Test Set Cal and SelfCal

Test Set Cal: An Overview

Calibrating: Insertable Port Pairs versus Noninsertable Port Pairs

During the through portion of the calibration, if an adjacent port pair (for example, 1-to-2, 3-to-4, 5-to-6, etc.) can be connected directly without using a cable or an adapter, the port pair is insertable. If an adjacent port pair can only be connected by using a through cable or an adapter, the port pair is noninsertable. If the port pair is noninsertable, the through cable or adapter is not used when the DUT is measured, so its electrical delay must be subtracted out. This is done by modifying the definition of the through-standard in the calibration kit for each port.

Most test fixtures have fixed-location connectors, so their port pairs can only be connected by using a through cable. During the calibration you will be prompted to connect a through cable between specific port pairs. If you can connect your cables to the test set so that the cables’ adjacent port pairs are male-to-female, all of your port pairs will be insertable. Configuring your test setup this way saves calibration time and improves your measurement throughput.

Performing the Test Set Cal with an ECal Module

This section describes how to perform the Test Set Cal with an ECal module.

Step 1.

Step 2.

Step 3.

Step 4.

NOTE

Step 5.

NOTE

Press [Channel Next] or [Channel Prev] to select the channel for which you want to execute multi-port test set calibration.

Press [Cal].

Press Test Set Cal.

Press Calibration.

If Calibration is disabled, the status of the multi-port test set of this channel may be off. See "Procedure of setting ports for the multi-port test set" in the previous section.

Press Port x-y(a port pair for which you want to execute calibration).

The multi-port test set calibration is performed for each port pair. If you want to use, for example, ports 1 and 3 for measurement, calibration must be performed for ports 1-2 and 3-4.

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