APPENDIX 2 ALERTS, IDS, MEANINGS AND MEASURES
AP-8
Alert ID
Displayed message
Priority
Meaning
Measures
(BAM ID)
001
(501)
TX MALFUNCTION
Warning
Transmission stopped
due to a failure.
Check antenna and FA-
170 connections.
Check that the own ship
MMSI is set.
Consult your dealer if
the problem is not recti-
fied.
002
(502)
LEGACY/ALERT IF1
:
ANTENNA VSWR EX-
CEEDS LIMIT
ALERT IF2
: ANTENNA
MALFUNCTION
Warning
High VSWR for the AIS
antenna detected.
Check the antenna.
Consult your dealer if
the problem is not recti-
fied.
003
(503)
RX CHANNEL 1 MAL-
FUNCTION
Warning
RX1 failure.
Circuit board may be
damaged. Contact your
dealer.
004
(504)
RX CHANNEL 2 MAL-
FUNCTION
Warning
RX2 failure.
005
(505) *
1
RX CHANNEL 70 MAL-
FUNCTION
Caution
Failed to receive DSC
message.
007
(507) *
1
UTC SYNC INVALID
Caution
No synchronization with
UTC.
Internal GPS has no fix.
Check weather and sur-
roundings for obstacles.
If the error appears fre-
quently, contact your
dealer.
008
(508) *
1
MKD CONNECTION
LOST
Caution
Communication failure
between the transpon-
der and the monitor unit.
Check connection be-
tween units. Consult
your dealer if the prob-
lem is not rectified.
009
(509) *
1
INT/EXT GNSS POSI-
TION MISMATCH
Caution
Mismatch of position
data between internal
GNSS and external
GNSS. After taking into
account the antenna po-
sition, there is a differ-
ence of over 100 m.
Check calibration and
location setting for both
GPS antennas.
010
(510) *
1
NAV STATUS INCOR-
RECT
Caution
Mismatch between
ship’s speed and
[NAVSTATUS] informa-
tion.
Check [NAV STATUS]
menu settings. Adjust
settings appropriately.
011
(511)*
1
LEGACY/ALERT IF1
:
HEADING SENSOR
OFFSET
ALERT IF2
: MIS-
MATCH BETWEEN
HDG AND COG
Caution
Mismatch between
COG and HDT. There is
a difference of over 45°
for more than five min-
utes at a speed of over
five knots.
Check connection to
sensor.
014
(514)
ACTIVE AIS-SART
Warning
AIS-SART message re-
ceived.
Check the message.
025
(525)*
1
EXTERNAL EPFS
LOST
Caution
Signal from external
navigational aids lost or
interrupted.
Check connection to
EPFS devices.