A typical sequence of test operations is shown in
1-4. The test flow starts at the planning phase of the program and runs through a typical production test sequence. Tape #1 is the reference tape which has the recorder characteristics recorded on side A, and the fixture-only sine sweep on side B. Tape #2 is the production tape with both the sine sweep and the synthesized random recorded on side A. The sine sweeps of Tape #1 and Tape #2 should be recorded at the same time to minimize any setup differences. The troubleshooting process required when test article or test facility problems occur, is iterative and may require two or three sine test cycles for problem resolution.