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User’s and Service Guide U3047-90001
U3047AM12
System Operational Checks
System Operational Checks
The following procedure will confirm that the RF interface cables between the test set and network
analyzer are installed and the system is working correctly. Ensure that your network analyzer is calibrated
by measuring the short on each port before connecting the test set.
Before beginning this procedure complete the following steps:
•
Stack the network analyzer on top of the test set.
•
Install the test set I/O cable on the rear panel.
•
Install all of the RF interface cables on the front panel.
•
Install the included female 2.4 mm short (85056-60021) to network analyzer Port 1.
Equipment Setup
•
Turn on the test set and network analyzer.
•
Preset the network analyzer and make the following settings:
— Set to Multi-Port Mode
— Frequency range: 10 MHz to 67 GHz
— IFBW: 1 kHz
— Scale: 10 dB/Div
— Set the network analyzer to measure S11
Verify Results
The 2.4 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 below. 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.
Table 7
Reflection Response Results
Reflection Port
Response Trace
Cable Path Diagram
Port 1 to 4
Ports 5 to 8
Ports 9 to 12
Ports 13 to 16
Summary of Contents for U3047AM12
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