Click <f> to enable the frequency measurement.

Figure 48: Frequency Measuring

Click on the <f> drop down menu and select the procedure to be performed.

Figure 48 shows the selection: LE=60 dB sine, which indicates an input level of 60 dB pure-tone is selected.

Click <go> or press the Enter key to start the actual measurement.

Figure 49: Input level

Prior to the start of the actual measurement, a prompt for further options will be displayed (Figure 49).

1. Select the input sound pressure level for the measurement or manually enter a level and press the Enter key.
2. Click <Start measurement> to start the measurement.
3. The measurement results will appear on the screen when completed.
4. Click <go> again or press the ESC key to interrupt or cancel the measurement.

Note: The selection menu may be disabled based on the settings in the setup menu.