Standard Horizon Gx5500s manual 33

FOG HORN TIMING CHART

TYPE	PATTERN									USAGE
UNDERWAY	One 5-second blasts every 120 seconds.									Motor vessel underway and
										making way.
					Listen Back
							120s
STOP	Two 5-second blasts (separated by 2									Motor vessel underway but
	seconds) every 120 seconds.									stopped (not making way).
				5s					5s
						Listen Back
		2s						2s
							120s
SAIL	One 5-second blasts followed by two 1-									Sailing vessel underway, fish-
	second blasts (separated by 2 seconds)									ing vessel (underway or an-
	every 120 seconds.									chored), vessel not under
			1s 1s					1s 1s		command, a vessel restricted
										in her ability to maneuver (un-
							Listen Back			derway or at anchor), or a ves-
		2s 2s						2s 2s		sel towing or pushing another
							120s			ahead.
TOW	One 5-second blasts followed by three 1-									Vessel under tow (manned).
	second blasts (separated by 2 seconds)
	every 120 seconds.
			1s 1s 1s					1s 1s 1s
							Listen Back
		2s 2s 2s						2s 2s 2s
							120s
AGROUND	One 11-second rings every 60 seconds.									Vessel is aground.

	Listen Back
	60s
ANCHOR	One 5-second rings every 60 seconds.	Vessel is at anchor.

Listen Back

60s

GX5500S Page 33