Includes these tests from IEC 6100-4-19:

5.1.2	CW Pulses With Pause Level 1 2khz-9khz
	CW Pulses With Pause Level 1 9kHz-95kHz
	CW Pulses With Pause Level 1 95kHz-150kHz
	CW Pulses With Pause Level 2 2kHz-9kHz
	CW Pulses With Pause Level 2 9kHz-95kHz
	CW Pulses With Pause Level 2 95kHz-150kHz
	CW Pulses With Pause Level 3 2kHz -9kHz
	CW Pulses With Pause Level 3 9kHz-95kHz
	CW Pulses With Pause Level 3 95kHz-150kHz
	CW Pulses With Pause Level 4 2kHz-9kHz
	CW Pulses With Pause Level 4 9kHz-95kHz
	CW Pulses With Pause Level 4 95kHz-150kHz