I added some boxes for quick reference. There is an inner ring of boxes every 30 degrees from 40 to 80 miles around Berlin with Alpha names.
At 120 to 200 miles there are boxes every 10 degrees and I just call them by the radial they live on.
There are two versions. The second was at Dobs request to make it easier to see the 30 degree radials and 80 mile range rings.
Low clutter version
https://www.dropbox.com/s/e58f5cymfm6kv ... 2.dds?dl=0Blind Man version
https://www.dropbox.com/s/uit91xqw5n97w ... n.dds?dl=0