4-55
Performance Tests
14. Test Port Receiver Phase Dynamic Accuracy
In Case of
Difficulty
1If the analyzer fails the test at all power levels, be sure you followed the
recommended attenuator settings as listed in the “Performan ce Test Record.”
Repeat this performance test.
2If both test port measured values are out of s pecifications:
aRecalibrate the Agilent 8902A.
bPress CLEAR on the Agilent8902A.
cRepeat this performance test.
dPress CALIBRATE when either “ERROR 32" or “RECAL” is shown on the mea-
suring receiver display.
3If the analyzer fails either test port 2 or test port 1 dynamic accuracy at lower
power levels:
aPerform the “IF Amplifier Correction Constants” and “ADC Offset Correc-
tion Constants” procedures (located in the “Adjustments and Correction
Constants” chapter of the Agilent 8753D Service Guide).
bRepeat this performance test.
cIf it still fails, replace the A10 Digital IF assembly.
dRepeat the two adjustment procedures mentioned in this step and then re-
peat this performance test.
14. Test Port Receiver Phase Dynamic Accuracy
Perform this test to measure phase dynamic accuracy of each input test port.