The Send Map to GPS dialog will appear, allowing you to customize the size and scale of the custom map.
Enter the width of the image.
Enter the height of the image.
Enter the map scale of the image. This will already be set to the current scale of the map in ExpertGPS.
Click Send Map to create the custom map and save it to your GPS.
Click Send Map to save the image. The Save As dialog will appear. Select the image type
in the Save as type: list. If you checked Calibration File, a worldfile or map calibration file will automatically be created in the same location as the image file.
After you are finished exporting your map, do one of the following:
On the Map menu, click Hide Send Map to GPS Window.
Click the close box on the Send Map to GPS window.