Icom IC-M504 instruction manual Automatic foghorn function, Underway, Stop, Sail, Tow

■Automatic foghorn function

The automatic foghorn function sounds a horn repeatedly until the function is turned OFF. Four patterns are available for varying conditions.

OTHER FUNCTIONS 7

The foghorn outputs from the hailer speaker. To use this func- tion, the hailer speaker must be connected to the transceiver. See p. 58 for connection details.

TYPE	PATTERN						USAGE
		5s± 1
UNDERWAY	One 5-second blasts every 120						Motor vessel underway and making way.
	seconds.
						120s
		5s± 1
STOP	Two 5-second blasts (separated						Motor vessel underway but stopped (not
	by 2 seconds) every 120 seconds.						making way).
				2s		120s
	One 5-second blast followed by	5s± 1					Sailing vessel underway, fishing vessel
							(underway or anchored), vessel not under
	two 1-second blasts (each sepa-				1s
SAIL							command, a vessel restricted in her ability
	rated by 2 seconds) every 120
							to maneuver (underway or at anchor), or a
	seconds.		2s			120s
							vessel towing or pushing another ahead.
	One 5-second blast followed by	5s± 1
					1s
	three 1-second blasts (each sep-
TOW							Vessel under tow (manned).
	arated by 2-seconds) every 120
	seconds.			2s		120s

The audio frequency of the foghorn is selectable. See p. 57 for details on selecting the audio frequency.

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