You configure the characteristic of the test signal on the 'Test Signal settings' tab. The characteristic of the test signal is used in audio input and audio output settings to configure a specific channel/output.
The setting on this tab is also used to configure the generated sound of the software buzzer. Also see 'Acoustic signal' setting in chapter ''Error Logging, EN 54-16 & RSL''.
Type
Choose a waveform to be generated: 'Sinus Wave' or 'White Noise'.
Frequency
If the waveform is set to sine, specify the target frequency too.
Gain
Adjust the level of the analog audio output signal.