
Communications with the GPS
Garmin GPS
-
Upload/Download
When using a
Garmin
GPS and are having problems
uploading/downloading
make sure you check
these settings:
GPS
-
set the GPS Interface to
GRMN/GRMN HOST
mode. On newer model Garmins the mode is
GARMIN
.
OziExplorer
-
set the
GPS Upload/Download Baud rate
to
9600
, garmins always do
upload/download at this speed.
Garmin GPS
-
Moving Map mode (NMEA)
When using a
Garmin
GPS and are having problems using
Moving Map mode
make sure you
check these settings:
GPS
-
set the GPS Interface to
NMEA/NMEA
mode. On newer model Garmins the mode may be
called
NMEA OUT
.
OziExplorer
-
set the
GPS NMEA Baud rate
to match the GPS, on most Garmins this is set
automatically to
4800
and cannot be altered.
If using a
Magellan
GPS try a Baud rate setting of
9600
, even though they have an option of
19200
have never found one that works at this speed.
Make sure you have the baud rate settings the same in the
GPS
and in
Oziexplorer
.
Waypoint Positions (any positions) do not agree.
If your waypoint positions are not where you think they should be it is most likely caused by a datum
mismatch. Typically a datum problem can alter a position by 50 to 200 meters but it could be less or
more for some datums.
Datums are complicated and many users seem to get these settings wrong.
See
Datums
help for more information.
When using "
Moving Map
" and you position is slightly off the correct position on the map check
these items:
1.
That you have the
Map Datum
set correctly.
2.
That you have the OziExplorer
GPS NMEA Output Datum
set correctly. For Garmins this
must be set to the same datum as the GPS, for most other GPS's it should be set to WGS 84.
The Eagle Explorer and Lowrance GN200 require it to be set to match the GPS datum.
OziExplorer Help Contents
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