Lucky Posted November 11, 2010 Share Posted November 11, 2010 G'day Fishraiders, I'm having a problem with my Navman 5380. It seems to have it's position permanently offset to the north west by about 400 metres. I have completed a factory reset, but it didn't help. The unit came with a boat I just bought, but there is no manual with it. General tracking is accurate, just always offset by the same amount. Any ideas? Thanks, Lucky Link to comment Share on other sites More sharing options...
fryboy Posted November 11, 2010 Share Posted November 11, 2010 link to the manual http://www.navmanmarine.net/upload/Marine/Internet_Manuals/5380/MN000436B_T5380_Manual_English.pdf Link to comment Share on other sites More sharing options...
Lucky Posted November 11, 2010 Author Share Posted November 11, 2010 Thanks Fryboy, the best I could come up with was to ensure the map map datum was correct, which it is at WGS-84, and to clear any map shift, however the offset is still there. Do the chart databases go out of date on these things requiring a subscription? Link to comment Share on other sites More sharing options...
fryboy Posted November 11, 2010 Share Posted November 11, 2010 Hey mate, all I could suggest is to follow what it says in the manual for a 'persistent offset' . It does say that 'some charts have consistent position errors' - sounds like you have one of those.. Map shift Warning: Map shift is for eliminating minor offsets. It should not be used if the correct datum is available. Use map shift with caution: incorrect application will cause incorrect boat positions. Some charts have consistent position errors. To correct this, apply a map shift. After a map shift: The positions of cartographic features (such as land, rocks, buoys and depth contours) move on the TRACKER chart display to where they should be. The positions of the boat, waypoints, tracks, and lines of latitude and longitude on the TRACKER chart display remain unchanged. Applying a map shift 1 Move the boat to a known point on the chart, for example a marina berth. 2 In the Chart setup menu, select Map shift. 3 Move the cursor to the position on the chart where the boat actually is. 4 Press and select Set. 5 Press to set the new map shift. The boat will now be displayed at its actual location. Clearing the map shift Clearing the map shift removes any map shift from the cartographic features on the TRACKER chart display. 1 In the Chart setup menu, select Map shift. 2 Press and select Clear. 3 Press . Link to comment Share on other sites More sharing options...
Lucky Posted November 11, 2010 Author Share Posted November 11, 2010 Thanks Fryboy, much appreciated. Had missed this in my perusal. Beers, Lucky Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now