1-50
Making Measurements
Characterizing a Duplexer (ES Analyzers Only)
this example, a wide frequency range that covers both the Tx-Ant and Ant-Rx parameters has been
chosen.
4. Uncouple the primary channels from each other and then press and toggle
to .
5. Press .
6. Set up the desired mode.
• For K36 mode, toggle to ON. Then, press .
• For K39 mode, toggle to ON. Then, press
.
7. Perform a full two-port calibration on channel 1 (refer to Chapter 6 , “Calibrating for Increased
Measurement Accuracy,” if necessary).
NOTE Make sure you connect the standards to the Tx port of the test adapter (or a cable attached
to it) for FORWARD calibrations, and to the Ant port for REVERSE calibrations.
8. Save the instrument state by pressing .
9. Press .
10. Set up channel 2 for the Ant-Rx stimulus parameters. In this example, a wide frequency range that
covers both the Tx-Ant and Ant-Rx parameters has been chosen.
11. Set up control of the test adapter so that channels 2 and 4 are Rx:
• For K36 mode, press .
• For K39 mode, press .
12. Perform a full two-port calibration on channel 2.
NOTE Make sure you connect the standards to the Rx port of the test adapter (or a cable attached
to it) for FORWARD calibrations, and to the Ant port for REVERSE calibrations.
13. Save this state in the analyzer:
Press .
14. Connect the duplexer to the test adapter.
15. Set up a 2-graticule, 4-parameter display with transmission measurements on the top graticule and
reflection measurements on the bottom graticule:
Press
, then set to .
The display will be similar to Figure 1-41.