Version 2.0
3
Functional Description
Operator’s Manual
Functional Description
MX420 Configurations
The MX420 Navigation System is available in several configurations.
Please refer to the
Auxiliary Unit Information
section of the manual to
view sample screens to identify your particular model. Described be-
low are the various MX420 configurations and their differences.
MX420/2 GPS
This is a basic MX420 Control and Display Unit (CDU) model with two
(2) bidirectional user NMEA ports. This model is supplied with a MX
Marine GPS only smart antenna. The smart antenna can achieve au-
tonomous GPS accuracy better than 3 meters.
MX 422 Professional DGPS Navigator
MX 422 Professional DGPS Navigator
Mx420 CDU
MX421-10 or MX521
Smart GPS Antenna
Basic MX420/2 or MX420/8 GPS & DGPS Configuration
MX420/2 DGPS
This is a basic MX420/2 CDU supplied with a MX Marine combined
GPS and Beacon smart antenna (MX421B-10, MX521, MX525). The
smart DGPS antenna unit can achieve 1-2 meter accuracy in areas with
good beacon differential coverage.
MX420/8 GPS
This is an enhanced MX420 CDU equipped with eight (8) bidirectional
user NMEA ports. It is supplied with a GPS only smart antenna unit.
MX420/8 DGPS
This is a basic MX420/8 CDU supplied with a smart DGPS antenna
model.
Summary of Contents for MX420
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