6-26
Performance Tests – Option 011
9. Receiver Input Crosstalk
12 Press SCALE REF, ELECTRICAL DELAY. Turn the analyzer front panel knob to vary
the electrical delay until the trace is in the most linear horizontal position.
13 Press MENU, TRIGGER MENU, SINGLE. Write the p-p value, which appears on the
analyzer display, on the “Performance Test Record.”
14 Press CONTINUOUS, MEAS, INPUT PORTS, A/R.
15 Repeat Step 12 and Step 13.
16 Press CONTINUOUS, MEAS, INPUT PORTS, B/R.
17 Repeat Step 12 and Step 13.
In Case of
Difficulty
WARNING These servicing instructions are for use by qualified personnel only.
To avoid electrical shock, do not perform any servicing unless you are
qualified to do so.
WARNING The opening of covers or removal of parts is likely to expose
dangerous voltages. Disconnect the instrument from all voltage
sources while it is being opened.
WARNING The power cord is connected to i nternal capacitors that may remain
live for five seconds after disconnecting the plug from its power
supply.
1Verify that the RF cables are in good condition. Move the RF cables to different
ports on the power splitter and remeasure the receiver input(s) that failed.
2Perform the “Sampler Magnitude and Phase Correction Constants (Test 53)”
procedure in the “Adjustments and Correction Constants” chapter of the
Agilent 8753D Option 011 Service Guide.
3Refer to the Agilent8753 D Option 011 Service Guide for further
troubleshooting information.
9. Receiver Input Crosstalk
Perform this test to verify the signal leakage interference between the input
and output test ports, with one port driven and the other one terminated.