Thread: Help to run custom maps on GPSMAP 421s

Hi,

Here a couple of suggestions (guidelines). Sorry I have never made a marine map. But hope it is helpful and someone more familiar helps too:

1. First begin making a simple map with a few elements!
2. Mapinfo can export (translate) MIF/MID into SHP which is supported by the Creator. Or you can do that with Global Mapper lets say.
3. Look at the "Navaid Attributes" in the manual and see what are the possible marine attributes supported

BTW I see you have also wrote in the cgpsmapper thread which is good too. Not very sure about that but think cgpsmapper support more marine elements than the Creator. Maybe it will be better to make a map with it. Keep in mind that cgpsmapper supports .mp input format which is very uncomfortable format but may do the job.

Here a couple of threads that may also be of help to you:
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If you are using MapInfo think the extension Vertical Mapper will be of big use to you or the program Surfer for creating the "Fish Eye" (I read that it is possible):
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