Press this submenu key to display the current system status, including the operating system and firmware versions, temperatures, and other details such as current battery information. Press Esc or Enter to return to normal operation.

Press this submenu key to run a series of tests that are related to the performance of the motherboard hardware. Press the Esc key to abort, or press the Enter key to continue. The display lists a summary of those tests that have passed. If any test fails, then all of the performed tests are listed with Pass/Fail notification.

If the Self Test fails when the battery is fully charged and the instrument is within the specified operating temperature, then contact your Anritsu Service Center (refer to Contacting Anritsu) and report the test results. Press Esc or Enter to return to normal operation.

Press this submenu key to run a series of tests that are related to the performance of the instrument hardware and that are specific to the current instrument application (refer to Mode Selector Menu). Press the Esc key to abort, or press the Enter key to continue. The display lists a summary of those tests that have passed. If any test fails, then all of the performed tests are listed with Pass/Fail notification. If any test fails, then contact your Anritsu Service Center and report the test results (refer to Contacting Anritsu).

Some of the hardware that is tested may also be used in different operating modes. One or more additional submenu keys may be displayed to allow running additional application self tests. For example, in model MS2721B with Option‑20 (Tracking Generator), when the test results are displayed, a TG Self Test submenu key is provided for an additional test.

Press this submenu key to open the GPS Menu. Refer to GPS (Option 31) for additional information.

Submenu keys are specific to each measurement mode. Please refer to a specific Measurement Guides listed in Measurement Guides.

Press this submenu key to open the System Options Menu.