We use open source maps downloaded to our Garmin GPS. A friend taught us how to download free maps to our GPS when we were in Mexico. We are forever indebted to him for showing us how to do this. I have passed on the how-to steps to individuals along the way and wanted to share the information more broadly. So, here we present step-by-step instructions. Step 3: You have two choices at this point — you can download a pre-defined country or build your own custom map.
Note: download map now does not always work so see step 4. On my MAC it downloads as an image and not as a zip file so it is easy to place in the folder; this might be different on a PC.
For example, I built maps of all the Southeast Asia countries I wanted to drive through. If this is a map you have purchased then save it your computer. The usual issue is that the Garmin is confused because there is more than one map on the Garmin. Remove that file make a copy of anything you are deleting before deletion as you may need it later. But, before I did that I deleted the old files before deleting I had saved a copy onto my computer. He needed his map to be in French.
Maps that are displayed perfectly on Garmin outdoor or travel devices generally do have the same quality on marine devices and are therefore unusable. Garmin has built in a locking mechanism in newer marine devices to prevent older Bluecharts without G2 from being used Message: "Karte nicht kompatibel" [Map is not compatible]. This lock also takes effect when OSM cards are involved. Thus, a special OpenSeaMap chart was developed for owners of Garmin marine devices.
It is particularly designed to adapt to the options of marine devices, which are rather limited compared to those of outdoor devices. This chart also works on outdoor devices with marine mode e. Oregon without any restrictions. It should also work for older marine devices. However, you should not download the entire map of Europa to less powerful devices in one go, but choose MapSource sections instead.
Otherwise the image buildup will be very slow and there can be gaps in the map if the working memory is too small. Devices for aviation have not been tested so far. From OpenStreetMap Wiki. Purge Help. OpenSeaMap and Garmin nautical chart plotter - Other languages. Other languages Translate. Categories : Garmin Openseamap.
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