User`s guide

1-50

Making Measurements

Characterizing a Duplexer (ES Analyzers Only)

This measurement example demonstrates how to characterize a 3-port device, in this case

a duplexer, using four-parameter display mode. You must use a test adapter or a special

3-port test adapter to route the signals from the analyzer (a two-port instrument) to the

duplexer (a three-port device). This example procedure is performed using one of the

following test adapters:

❏ 8753D Option K36 Duplexer Test Adapter

❏ 8753D Option K39 3-Port Test Adapter

❏ 8753ES Option H39 3-Port Test Adapter (use the same instructions as those for K39

mode)

Definitions

The following abbreviations are used in reference to a duplexer:

Tx Transmitter port

Ant Antenna port

Rx Receiver port

Procedure

1. Press .

2. Connect the test adapter to the analyzer according to the instructions for your

particular model. Connect any test fixture or cables to the duplexer test adapter. Refer

to Figure 1-40.

Preset