Keysight U3042AM20 User’s and Service Guide
25
U3042AM20
System Operational Check
System Operational Check
The following procedure will confirm that the RF interface cables between the
test set and analyzer are installed and the system is working correctly. Ensure
that your analyzer is operating before connecting the test set.
Before beginning this procedure complete the following steps:
— Stack the 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 female 3.5 mm short (85056-60007, included) to Port 1 on the
analyzer.
Equipment Setup
— Turn on the test set and analyzer.
— Preset the analyzer and make the following settings:
— Set to Multi-Port Mode
— Frequency range: 10 MHz to 26.5 GHz (depending on your analyzer)
— IFBW: 1 kHz
— Scale: 10 dB/Div
— Set the analyzer to measure S11
Verify Results
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 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 8
Reflection Response Results
Reflection Port
Response Trace
Cable Path Diagram
Port 1 to 4
Ports 5 to 24
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