User`s guide

6-40

Calibrating for Increased Measurement Accuracy

Calibrating for Noninsertable Devices

A test device having the same sex connector on both the input and output cannot be

connected directly into a transmission test conﬁguration. Therefore, the device is

considered to be noninsertable, and one of the following calibration methods must be

performed:

• adapter removal (ES Analyzers Only)

• matched adapters

• modify the cal kit thru deﬁnition

Figure 6-12 Noninsertable Device

Adapter Removal (ES Analyzers Only)

The adapter removal technique provides a means to accurately measure noninsertable

devices. The following adapters are needed:

• Adapter A1, which mates with port 1 of the device, must be installed on test set port 1.

• Adapter A2, which mates with port 2 of the device, must be installed on test set port 2.

• Adapter A3 must match the connectors on the test device. The effects of this adapter

will be completely removed with this calibration technique.

NOTE Adapters A1 and A2 become part of the test setup to allow connection to the

DUT.

Adapter A3 is used during the calibration only. Its effects will be removed.