Would it not be more precise and therefore useful to display Lat/Long for both parties to a contact, rather than a fixed subregion model?
Yes, it would be more precise but not necessarily better. While the publisher of an advertisement knows her Lat/Long, she does not necessarily know the Lat/Long of the other station. For this version of Beacon, I stuck with the simpler fixed subregion model, which is information already gathered during a contact. For Beacon purposes, subregion is sufficiently precise to indicate basic band openings between two points on the globe.
