User's Manual

23
4.2 LED Indicators
Indicator
Light
Description
Power
Green, steady
The device has been powered up correctly.
By USB power, the Power LED does not light showing that
the device is in low power mode.
Error
Red, steady
MMSI is not properly programmed
Red, flashing
A BIIT system error is detected referring to chapter 4.5,
or by USB power
Rx
Green, flashing
The device is receiving AIS data.
Tx/Silent
Orange, flashing
The device is acquiring a GPS fix, no AIS transmission
during this time period.
This can be the following situation:
 The device is just newly powered on and is acquiring a
GPS position fix prior to transmitting its first vessel
information report. This process may take several
minutes.
 The GPS position fix has been lost. The device is
attempting to re-acquire position fix for 30 minutes
before entering a BIIT system error state.
Orange, steady
The device is in silent mode, no AIS transmission at all.
Green, flashing
The device is transmitting AIS data.
The flash interval is 3 minutes when vessel speed under 2
knots.
The flash interval is 30 seconds when vessel speed above
2 knots.
VHF Tx
Green, flashing
The VHF radio is transmitting
Warning
Orange, steady
The red LED illuminates when antenna VSWR is over 3:1
by VHF transmission at 25W.