80 Chapter 4
Troubleshooting
Performance test failure troubleshooting
NOTE When RF IN Port VSWR test fails, check first whether the connections of the RF
semi-rigid cables between the suspicious assembly and others are tight or loose. Also
check for possible disconnection (impairment) of the cables and connectors.
###: Most suspicious assembly
##: Suspicious assembly
#: Possible faulty assembly
Table 4-5 Performance test failure troubleshooting information
Test
No.
First failed test Probable faulty board assembly
A1 A2 A3 A4 A5 A6
1 RF IN Port VSWR Test
###
2 Frequency Measurement Test ## # # ###
3 Power Meas. Accuracy Test ###
4 Phase Noise Accuracy Test # #######
5 SSB Phase Noise Sensitivity Test # #######
6 SA Relative Level Accuracy Test # ## ###
7 DC Power Voltage Test ###
8 DC Power Current Meas. Test ####
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