SRT AIS, Installation And Operation Manual

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Operation
Page 47
● Dimensions of the location of an optional GNSS antenna connected
to the AIS transceiver via an NMEA interface.
4.7.3 Configuring the Internal GNSS Receiver
The internal GNSS receiver can be configured to operate in one of three
modes:
● GLONASS and GPS – in this mode the position fix is derived from
both the GLONASS and GPS network in parallel. This mode is the
default setting and gives the best performance.
● GPS – in this mode only GPS satellites are used for the position fix.
● GLONASS – in this mode only GLONASS satellites are used for the
position fix.
The operating mode can be selected from the ‘GNSS source’ option in the ‘ Ad-
vanced’ settings menu.
The antenna dimensions should be entered in metres according to the dia-
gram provided in Figure 21.
Figure 21 Vessel Dimension Measurement
Ref A
Antenna
Ref A + Ref B = Length in metres Ref C + Ref D = Beam in metres
Ref B
Stern Bow
Ref C
Ref D