Programming Instructions

LD2342 V1.3 Page 21 of 21
SRT Marine
User guide
SRT-MTB
©
proAIS Application
Problem Possible cause Solution
Active alarm shown:
VHF Antenna VSWR fault
The VHF antenna is not connected or is
not suitable for use with the AIS
Check the VHF antenna connections.
Check the AIS installation manual
against the specification of your VHF
antenna
Active alarm shown:
12V Power supply fault
The power supply to the AIS is outside
the specified range.
Check the power supply voltage to the
AIS against that specified in the
installation manual.
Active alarm shown:
Channel A Noise fault OR
Channel B Noise fault
The AIS cannot transmit because the
background noise level is too high
Check the VHF antenna connections.
Check the AIS installation manual
against the specification of your VHF
antenna.
In very busy shipping channels this
alarm may appear temporarily. This is
normal operation for Class B AIS.
Active alarm shown with message not
listed here
The VHF antenna is not connected or is
not suitable for use with the AIS.
AIS has an internal fault.
Check the VHF antenna connections.
Check the AIS installation manual
against the specification of your VHF
antenna.
Please contact your dealer.