Regarding your two questions:

1. YAAC can import raster map images for a background. However, they are a pain to pin to the grid so the coordinate system is known properly, so I recommend using UTM-coordinate images with an associated .wld file to provide the pinning information.

Also, YAAC does support a lower-resolution form of the imported OpenStreetMap data that only does national boundaries. However, it's a bit sloppy because the boundary map lines aren't consistently identified, so YAAC has trouble finding all of them. To get the planet-level map file, make sure your download range for OSM map tiles covers more than 8 degrees (about 500 nautical miles or 800 kilometers) when you are downloading the tiles; YAAC will then assume you are going to be zoomed out enough to need the planet file and will download it too.

2. The graticule grid lines can be turned off by unchecking the menu choice View->Layers->Lat/Lon Graticule.

Hope this helps.

Andrew, KA2DDO
author of YAAC

________________________________________
From: [email protected] <[email protected]> on behalf of Tony via groups.io <73GUDDX@...>
Sent: Friday, December 27, 2024 12:54 AM
To: [email protected]
Subject: [yaac-users] World Map For HF APRS

All:

I'm new to YAAC and I was wondering if it's possible to import a simple World Map? My primary interest is HF APRS so there's no need for a detailed street map. Also wondering if it's possible to remove the grid lines.

Thanks, Tony