ComNav P4 Installation and Operation System Overview
Document PN 29010100 V1r0 - 32 -
One feature that is especially useful in marine applications, is that Heading is determined
by mathematical computation, directly from the RF signals from GPS satellites, rather
than sensing the Earth’s magnetic field – and thus there are no local magnetic deviation
effects from metal objects, electrical devices, wiring, etc. As well, Heading is
available at
high Latitudes.
The GNSS compass contains a solid-state Gyro sensor, which is used to provide short-
term Heading
data in situations where GPS signal reception is subject to transient
interference and/or
blockage. The GNSS also measures the boat’s pitch (or roll,
depending on which way the
unit is mounted), and the data is available for use by other
equipment on board.
The GNSS NMEA0183 model is connected to the P4 Autopilot at one of the SPU’s two
NMEA Input ports.
The standard cable lengths are 15 metres (50’) or 30 metres (100’);
custom lengths are also
available.
The GNSS NMEA2000 model is connected to the NMEA2000 network via a 6m
NMEA2000 cable.
Navigator G2 GPS Compasses Display
PN 20130003 (monochrome) or 20130004 (colour)
PN 10130056 (system with G2 and15 or 30 m cable, monochrome)
PN 10130051 or 10130053 (system with G2 and15 or 30 m cable, colour)
The ComNav Navigator G2 GPS Compass Display is an optional control and status display
unit
for the NMEA0183 model of G2 and/or G2B GNSS Compass.
The Navigator G2 option consists of a Display Head seen in Figure 7, that is identical in
shape, size and overall
appearance to the P4’s Control Head, and a Distribution Unit that
provides a
convenient way to connect the GNSS G2/G2B compass (NMEA0183 model) to
the P4 and to power. The Display Head is
available with a monochrome or colour LCD
display; it uses the same mounting methods and
cover, as the ComNav P4 Control Head.
The Display Head provides graphical and textual information about the boat’s position,
heading, speed and turn rate. The Head also can display several menus, which are used
to
control the configuration and operation of the G2/G2B. Up to two Heads can be used
at once.
Figure 7 – Navigator G2 Display Head
To Next Page
Loading...
