Agilent Technologies 8753ET User Manual page 65

Making Measurements
Characterizing a Duplexer (ES Analyzers Only)
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
Save/Recall SAVE STATE
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 Display DUAL|QUAD SETUP 4-PARAM DISPLAYS
Trans: REV S12 (A/R)
Chan 4 Refl: REV S22 (B/R)
Refl: FWD S11 (A/R)
The display will be similar to
1-52
SELECT [RX-ANT]
Meas
SELECT PORTS [2-3]
Meas
.
Chan 1 Trans:FWD S21 (B/R)
, then set DUAL CHAN on OFF
Figure 1-41.
.
.
SETUP B
Chan 3
to ON .
Meas