Fog Signal Timing Chart - Standard Horizon MATRIX AIS/GPS GX2200E Owner's Manual

7.10.3 Fog Signal Timing Chart

TYPE
UNDERWAY One 5-second blasts every 120 seconds.
STOP Two 5-second blasts (separated by 2 seconds)
every 120 seconds.
SAIL One 5-second blasts followed by two 1-second
blasts (separated by 2 seconds) every 120
seconds.
TOW One 5-second blasts followed by three
1-second blasts (separated by 2 seconds)
every 120 seconds.
AGROUND One 11-second rings every 60 seconds.
ANCHOR One 5-second rings every 60 seconds.
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PATTERN
5s
Listen Back
120s
5s 5s
Listen Back
2s
120s
5s 1s 1s
Listen Back
2s 2s
120s
5s 1s 1s 1s
Listen Back
2s 2s 2s
120s
1s
1s 1s 5s 1s
250ms
11s
Listen Back
60s
5s
250ms
5.25s
Listen Back
60s
5s
5s 5s
2s
5s 1s 1s
2s 2s
5s 1s 1s 1s
2s 2s 2s
1s 1s
USAGE
Motor vessel underway and
making way.
Motor vessel underway but
stopped (not making way).
S a i l i n g v e s s e l u n d e r w a y,
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.
Vessel under tow (manned).
Vessel is aground.
Vessel is at anchor.
GX2200E