Magellan MobileMapper CX - Page 38

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The table below lists the different steps you have to go through
before MobileMapper CX can operate in a given DGPS mode,
depending on whether the mode relies on the use of a COM
port, Bluetooth or GPRS.
To choose and enable a DGPS mode, use the DGPS Configu-
ration utility as explained in detail in the continuation of this
chapter.
Once a DGPS mode is used, any accidental disruption in the
flow of incoming data packets will trigger a warning message
of the type “No differential corrections received over xx sec! Cor-
rection age limit = xx sec”. This will happen after a time tied to
the value you will have assigned to the Real Time Correction Age
Limit parameter. When this warning message appears, Mo-
bileMapper CX will automatically switch to Autonomous GPS
mode.
Step #
DGPS Mode
Step 1 Step 2 Step 3 Step 4
SBAS
Select SBAS
mode
Enable SBAS
mode
Beacon via
Bluetooth
Establish Blue-
tooth Connection
Select and set
(tune) beacon
Enable Beacon
mode
Beacon via
COM1
Connect Serial
Data Cable
Select and set
(tune) beacon
Enable Beacon
mode
Direct IP
Establish Blue-
tooth Connection
Establish GPRS
connection
Select and set Direct
IP
Enable
Direct IP
NTRIP
Establish Blue-
tooth Connection
Establish GPRS
connection
Select and set
NTRIP
Enable
NTRIP
Other RTCM
Source
via COM1
Connect Serial
Data Cable
Select and set
RTCM source
Enable Other RTCM
Source mode