Interfacing with a GPS receiver

Downloading and viewing free aerial photos and maps is pretty cool, but if you have a GPS receiver, USAPhotoMaps has even more features that you can put to use, including

• Downloading waypoints, routes, and tracks from a GPS receiver to overlay on aerial photos and maps.
• Uploading waypoints and routes that you’ve created with USAPhotoMaps to your GPS receiver.
• Interfacing USAPhotoMaps to a GPS receiver for real-time updates of your current position shown on an aerial photo or topographic map. USAPhotoMaps has a separate help file that covers only GPS-related topics. You’ll find comprehensive information on interfacing your GPS receiver to the program and descriptions of GPS-related features. To display the help file, choose Help from the GPS menu.

Click the mouse to add a waypoint wherever the cursor is currently positioned. You’ll be prompted to enter a description and a name (to identify the waypoint if you upload it to a GPS receiver). The waypoint will be displayed as a dot on the aerial photo or the map. Right-click the mouse button to display a list of waypoints.