Navman la000578a User Manual

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LA000578A © 2006 Navman New Zealand. All rights reserved. Proprietary information and specifications subject to change without notice.

suggested that VisualGPS is used for analysis, rather than SiRFDemo. 

To provide graphical presentation of the data, the receiver can be set to output in SiRF binary 

format. 

1. Open the SiRFDemo software.
2. When the Data Source setup is displayed, select the appropriate COM port and 9600 Baud 

from the drop down menu.

3. Select the Action menu and click on Open Data Source. If the development unit is powered, 

and the serial port is connected to the PC, NMEA data should appear in the Debug View 

window. 

To change to SiRF binary, select the Action menu and click on the Switch to SiRF Protocol. This 

should now present information in each window, similar to that of VisualGPS. Whilst enabled in 

SiRF binary protocol, more of the analysis software’s functionality can be accessed. To switch 

back into NMEA mode, select the Action menu and click on Switch to NMEA Protocol. Select 

9600 for the baud rate and click on the Send button.

Note: settings, including the current output protocol, are reset if all power is removed from the 

unit. For more information, refer to the Navman SiRFDemo and SiRFflash User Guide 

MN000316.

1PPS: One Pulse Per Second
DGPS: Differential Global Positioning System
GPIO: General Purpose Input Output
GPS: Global Positioning System
NMEA: National Marine Electronics Association
RTC: Real Time Clock
RTCM: Radio Technical Commission for Maritime services