1 Performance Tests - Verifying Specifications30 Keysight 53147A/148A/149A Assembly Level Service GuideComplete Performance TestsThe Complete Performance Tests verify the specifications of the Keysight 53147A/148A/149A listed in Chapter 6, “Specifications”. All of these tests can beperformed without opening the instrument. Table 1-3 lists a summary of theperformance tests.Record the results of the performance tests in the appropriate place on thePerformance Test Record, which starts on page 51.NOTE To ensure that the test results are valid, the instrument and the test equipmentshould be powered on for at least 30 minutes prior to beginning the tests. Thisallows the internal temperatures of the equipment and the timebase to stabilize.Table 1-2 Complete Performance TestsPage Number Test DescriptionPage 31 “Test 1: Channel 1 Frequency Sensitivity”Page 35 “Test 2: Channel 2 Frequency Sensitivity”Page 39 “Test 3: Power Measurement”Page 42 “Test 4: Power Reference Oscillator Frequency”Page 44 “Test 5: Power Meter Reference Level”NOTE Other instrument measurement functions (e.g., Averaging) are mathematicallyderived by the microprocessor from the parameters verified by theseperformance tests. If the instrument passes the performance tests, the othermeasurement functions are also functioning to specifications.
