TB8100 Service Kit User’s Manual Reciter Tests 1753. In the Lower Frequency and Upper Frequency boxes, view the resultsof the test. These values report the range within which the synthesiser is ableto lock onto the specified frequency.Note: The reported ranges are conservative. In fact, the base stationwill be able to transmit and receive outside the range, but withreduced transmit output and receive sensitivity.4. Click Stop Test. The exciter and receiver frequencies revert to what theywere when you started the test.Audio I/O TestsThe Audio I/O form (Diagnose > Reciter > Audio I/O) lets you measure thelevel of any audio input or put a 0 dBm signal tone on the balanced orunbalanced line out.In the Input area, the Audio Input gauge displays the level of the current audioinput. In the Output area, the Audio Output gauge displays the audio level ofthe line out selected by the option buttons. The display continues to updateevery 500 ms.Measuring the Audio Input LevelThe reciter can measure the level of the current audio input and display it onthe Service Kit.You can use this diagnostic tool in the following situations:Q Troubleshooting: the measurement shows you whether audio is arriving atthe base station.Q Adjusting the audio output of other equipment such as a console.Q Defining channel profiles: the measurement tells you the actual input levelso that you can specify a value for the expected input level.Note: Audio that is input during the test is not transmitted, becausethe base station goes into standby mode for the test.To measure the audio input level1. Make sure that audio is being fed into one or more inputs on the reciter’ssystem interface.2. Select Diagnose > Reciter > Audio I/O.3. Click the appropriate option to select the type of input you want tomeasure.
