System Operational Checks
The following procedure will confirm that the RF interface cables between
the Test Set and analyzer are installed and the system is working correctly.
Before beginning this procedure complete the following steps:
•
Stack the analyzer
system for the
12/14
-Port System
.
•
Install the Test Set I/O cable on the
U3022AH10
and PNA-X
rear panel
s
.
•
Install all of the RF interface cables
as shown
•
Install the included female 3.5 mm short to Port 1 on the
analyzer.
Equipment Setup
•
Turn on the test set
s
and analyzer.
•
Preset the analyzer and make the following settings:
— Set to Multi-Port Mode
. Use Test Set file:
U3022
A
H
10
_pnax_p4
(Option 129)
or U3022AE10_pnax_p4 (STD)
•
— Frequency range: 10 MHz to 26.5 GHz
— IFBW: 1
k
Hz
— Scale:
2
0 dB/ Div
— Set the PNA to measure S11
— Ensure the RF path of the analyzer is in Default mode. Refer to
, "RF Path Configuration” on page 3
Verify Results
Table 9
Reflection Port
Response Trace
Cable Path Diagram
PNA-X
Port 1
PNA-X
Port
2
System Configurations
U3022AH10
The 3.5 mm short will be relocated to each Test Port and an uncorrected reflection
response trace should be displayed that resembles the following plots indicated in
the table
s that follow.
If you suspect an RF signal path problem, refer to the RF
cable diagram and check the interface cables associated with this signal path for
proper installation
.
Reflection Response Results
Test Set Ports 1, 3, 5, 7, 9, 11
Test Set Ports 4, 6, 8, 10, 12
U3022AH10 User's and Service Guide
27