Meaning
Verification stage where intermediate modules of a larger radio system are evaluated for performance before final integration into the main chassis. Conducting rf sub-assembly testing allows manufacturers to identify and fix defects in amplifiers and filters at an early stage. This method prevents the waste of assembly time on units that contain a faulty sub-component.
Functional Verification
Performance metrics such as gain, noise figure and frequency response are measured against the original design specifications. During rf sub-assembly testing, the module is placed in a shielded environment to prevent external noise from affecting the data. These measurements confirm that the sub-assembly will function correctly when connected to other parts of the system.
Fault Isolation
Verification at this level makes it easier to pinpoint the exact cause of a performance issue. If a device fails final inspection, the results from the rf sub-assembly testing provide a history that shows whether the module was working before integration. This data helps in determining if the fault was caused by a bad component or by the assembly process itself.
Clear isolation of the defect prevents the engineering team from chasing phantom problems in the main chassis when the error lies in an isolated module.
Defect Isolation
Rejection of a single module is less expensive than scrapping an entire finished product. By implementing rf sub-assembly testing, a facility can improve the final pass rate of the main production line.
