ICOM iM504 User Manual
53
7
OTHER FUNCTIONS
7
■ Automatic foghorn function
The automatic foghorn function sounds a horn repeatedly
until the function is turned OFF. Four patterns are available
for varying conditions.
until the function is turned OFF. Four patterns are available
for varying conditions.
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.
tion, the hailer speaker must be connected to the transceiver.
See p. 58 for connection details.
TYPE
PATTERN
USAGE
UNDERWAY
STOP
SAIL
TOW
The audio frequency of the foghorn is selectable. See
p. 57 for details on selecting the audio frequency.
p. 57 for details on selecting the audio frequency.
One 5-second blasts every 120
seconds.
seconds.
Two 5-second blasts (separated
by 2 seconds) every 120 seconds.
by 2 seconds) every 120 seconds.
One 5-second blast followed by
two 1-second blasts (each sepa-
rated by 2 seconds) every 120
seconds.
two 1-second blasts (each sepa-
rated by 2 seconds) every 120
seconds.
One 5-second blast followed by
three 1-second blasts (each sep-
arated by 2-seconds) every 120
seconds.
three 1-second blasts (each sep-
arated by 2-seconds) every 120
seconds.
Motor vessel underway and making way.
Motor vessel underway but stopped (not
making way).
making way).
Sailing vessel underway, fishing vessel
(underway or anchored), vessel not under
command, a vessel restricted in her ability
to maneuver (underway or at anchor), or a
vessel towing or pushing another ahead.
(underway or anchored), vessel not under
command, a vessel restricted in her ability
to maneuver (underway or at anchor), or a
vessel towing or pushing another ahead.
Vessel under tow (manned).
5s
±
1
120s
5s
±
1
2s
1s
120s
5s
±
1
2s
1s
120s
5s
±
1
2s
120s