DM-0105

Description

Driver for Leica MX 9400N receiver.
Driver to be used to obtain raw GPS pseudo-ranges and GPS broadcast data in compressed measurement format.

The same driver can also be used to decode (computed or predicted) positions, output by the Leica MX 9400N receiver in proprietary NMEA sentence format. 

Driver Information

System Configuration

Raw data output

The Leica MX 9400N receiver can be configured for raw data output using the "CDU" program as follows.

Receiver Port Config:

Set the interface parameters for the receiver. QPS advises 19200 or as high as possible, 8, N, 1 for port 1 (CDU port).

Receiver Port Assign:

Control port = 1, Raw Data port = 1, RTCM port = 3, Equipment port = None.

Receiver Raw Data Control:

Nav Results = Off

Raw Measurements = Compressed Type 3

Almanac / Ephemerides = Yes

Constellation = No

Differential = Off

External Event = 0000

Beacon Receiver = No

Time Recovery = No

Full Debug = No

Partial Debug = 0000

Position output

The Leica MX 9400N receiver can be configured for position output using the "CDU" program as follows.

Receiver Port Config:

Set the interface parameters for the receiver. QPS advises 19200 or as high as possible, 8, N, 1 for port 1 (CDU port) and port 2.

Receiver Port Assign:

Control port = 1, Raw Data port = 1, RTCM port = 3, Equipment port = 2.

NMEA Message Control:   Port = Equipment

Message ID = 021 (Computed Position)

Interval = 1 sec

Select Add To List, press Enter.

NMEA computed positions are now output to port 2.

Interfacing Notes

The cable between the Leica multiport interface cable CDU port 1 and the PC serial COM port must be:

Alternatively the PC serial COM port can be connected directly to the multiport interface connector:

Drivers IO Notes

Required command line parameters for using DrvMagnavox for these receiver options are "RAW 9400".