4-44
Performance Tests
12. Test Port Input Impedance
display, on the “Performance Test Record.”
System Trace Noise for B/R Magnitude from 3 GHz to 6 GHz
21 Press MENU, CW FREQ, 6, G/n, TRIGGER MENU, NUMBER of GROUPS, 5, x1.
22 When the analyzer finishes the number of sweeps, press SCALE REF, AUTO SCALE.
23 Write the s.dev (standard deviation) value, which appears on the analyzer
display, on the “Performance Test Record.”
System Trace Noise for B/R Phase from 3 GHz to 6 GHz
24 Press FORMAT, PHASE, MENU, TRIGGER MENU, NUMBER of GROUPS, 5, x1.
25 When the analyzer finishes the number of sweeps, press SCALE REF, AUTO SCALE.
26 Write the s.dev (standard deviation) value, which appears on the analyzer
display, on the “Performance Test Record.”
System Trace Noise for B/R Phase from 30 kHz to 3 GHz
27 Press MENU, CW FREQ, 3, G/n, TRIGGER MENU, NUMBER of GROUPS, 5, x1.
28 When the analyzer finishes the number of sweeps, press SCALE REF, AUTO SCALE.
29 Write the s.dev (standard deviation) value, which appears on the analyzer
display, on the “Performance Test Record.”
In Case of
Difficulty
1Perform the “ADC Offset Correction Constants” procedure, located in the
“Adjustments and Correction Constants” chapter of the Agilent8753D
Service Guide.
2Repeat this performance test.
3Suspect the A10 Digital IF board assembly if the analyzer still fails the test.
12. Test Port Input Impedance
Perform this test to measure the return loss of each input test port.