Furuno LH-3000 manual Sail

	2. OPERATION
SAIL:	Warning signal for sailboats, tug boats and tow boats underway. One 3-second
	blast, followed by one 2-second interval, one 1-second blast, one 2-second
	interval and one 1-second blast. Repeated every 120 seconds.
	1 s

2 s

2 s

1 s

3 s

		120 s
		Sailing signal
TOW:	Warning signal for vessels under tow. One 3-second blast, followed by one
	2-second interval, one 1-second blast, one 2-second interval, one 1-second blast,
	one 2-second interval, and one 1-second blast. Repeated every 120 seconds.
		2 s

1 s

2 s

1 s

2 s

1 s

3 s

120 s

Towing signal

STOP: Warning signal for power-driven vessel that is stationary. Two 3-second blasts, with a 2-second interval between each blast, repeated every 120 seconds.

3 s 2 s

3 s

120 s

Stop signal

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