[mkgmap-dev] Garmin

Tue Jan 12 08:56:38 GMT 2010


On 12.01.2010 09:16, Charlie Ferrero wrote:
> Markus wrote:
>    
>> Dear professionals,
>>
>> Mark has made a very nice nautical chart for www.OpenSeaMap.org
>> <https://sourceforge.net/projects/openseamap/files/Maps/Garmin/baltic.zip/download>
>> It works very well on handhelds!
>>
>> Next week we will exhibit OpenSeaMap on the boat show
>> www.boat-duesseldorf.com (23.-31. January, hall 14/G39).
>>
>> Now I need your help:
>> How can I make working the map on a Garmin nautical chart plotter?
>>
>> Garmin *GPSmap 525* with SD-slot.
>>
>> Sub-folder: "Garmin"
>> File: "gmapsupp.img"
>> Message: "Map format is not supported"
>> and: "DK Copenhagen"
>>
>> Thanks for help!
>> Markus
>> _______________________________________________
>>      
> Playing around on the Garmin website (https://buy.garmin.com/shop/buym),
> it seems that only a very limited set of official Garmin maps are
> compatible with (or at least, available for) the GPSMap 525.  All of
> them are marine maps.
>
> It may be that marine maps have a slightly different format to the
> land-based maps.  AFAIK, there are at least three Garmin map formats:
> old (pre NT), NT and NT2.  I think mgkmap produces only old (pre NT) maps.
>    
There are also three formats used by nautic maps. The old "blue chart"", 
the newer G2, and the newest being called G2 vision (including aerial 
photopgraphy).
The G2 / G2 vision maps cannot be displayed by Mapsource - instead you 
have to use Garmin Homeport (which is not free).

--GPSmap 525
it strikes me that this unit is not listed to be compatible with normal 
blue charts ( 
http://www8.garmin.com/cartography/mapSource/bluechartCD.jsp ). Also on 
the unit page of Garmin it seems the 525 is only made for G2 or G2 
vision maps.

So you might have to try out a nautic unit that is still listed being 
compatible with Garmin blue chart maps.
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