User`s guide

Chapter 2 2-15

Operation

Test Set I/O Port Parameters

Table 2-4 shows the nine S-parameters that can be measured with the

analyzer.

Port 1, Port 2, and Port 3 can be switched independently depending on

the test set I/O forward (FWD) or reverse (REV) value and the analyzer’s

test state – FWD or REV. When the analyzer is in the dual-channel mode

and the channels are uncoupled, the test set I/O (FWD and REV) can be

set differently regardless of the FWD and REV I/O setting. The

S-parameters are updated on the display when either Chan 1 or Chan 2 is

pressed on the active channel front panel keys. S-parameters can also be

updated through the Meas menu. After pressing the Meas key, select an

S-parameter value (for example Reﬂ: FWD S11 A/R) to update the display.

CAUTION Before performing a full 2-port calibration, make sure that both the

TESTSET I/O FWD and the TESTSET I/O REV settings are set the

same.

Table 2-4 Test Set I/O Port Parameters

Measurements Ports and Port

Paths

S-parameters

Under Meas

Test Set

I/O Setting

Test Set

I/O Setting

FWD REV

Reﬂection 1)PORT 1S

7 ---

2) PORT 2S

3) PORT 3S

--- 7

Transmission 4) PORT

1-PORT 3

, S

5) PORT

2-PORT 3

, S

6) PORT

1-PORT 2

, S