Appendix A (Configuring Gps) - JW Fishers SCAN-650 Operation Manual

CONFIGURING YOUR GPS
The SCAN-650 uses standard NMEA 0183 information obtained from a connected
GPS or Loran C receiver to display your boats heading and position (Latitude and
Longitude). For most GPS systems you will need to enable the data output, select a
version of NMEA 0183 to output and select the outputs baud rate (data speed). These
selections are usually made through your receivers Setup menu. Please refer to your
GPS or Loran C users manual for detailed instruction.
NMEA 0183 Standard version – The NMEA 0183 interface standard has evolved to
accommodate new technologies in communications for marine navigation. As a result,
most GPS receivers offer a choice of which NMEA 0183 revision is sent to its data
output. The SCAN-650 can obtain the boats position and heading information from a
variety of data sentences available in many of the revisions. The sentences the SCAN-
650 recognizes are GLL, GGA, VTG and RMC. It is usually best to select the latest
revision. If, after selecting a revision, either the position or heading is missing, try
selecting another revision.
Baud rate – The SCAN-650 uses the industry standard speed of 4800 baud for the
NMEA 0183 interface. If your receiver offers a selection of alternate baud rates, select
4800.
APPENDEX A
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