Agilent Technologies 8719ES User Manual page 64

Making Measurements
Characterizing a Duplexer (ES Analyzers Only)
3. Set up channel 1 for the Tx-Ant stimulus parameters (start/stop frequency, power level,
IF bandwidth). In 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
toggle COUPLED CH on OFF
5. Press
CONFIGURE MENU USER SETTINGS
System
6. Set up the desired mode.
• For K36 mode, toggle
SELECT [TX-ANT]
• For K39 mode, toggle
SELECT PORTS [1-3]
7. Perform a full two-port calibration on channel 1 (refer to
Increased Measurement Accuracy,"
Make sure you connect the standards to the Tx port of the test adapter (or a
NOTE
cable attached to it) for FORWARD calibrations, and to the Ant port for
REVERSE calibrations.
8. Save the instrument state by pressing
9. Press .
Chan 2
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.
Make sure you connect the standards to the Rx port of the test adapter (or a
NOTE
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.
1-50
to OFF .
K36 MODE on OFF
.
K39 MODE on OFF
.
if necessary).
Save/Recall SAVE STATE
SELECT [RX-ANT]
Meas
SELECT PORTS [2-3]
Meas
.
Sweep Setup
.
to ON. Then, press
to ON. Then, press
Chapter 6 , "Calibrating for
.
.
.
and
Meas
Meas