Updated 2 April 2017
There are two Yahoo groups that perform essentially the same functions. They are places for friendly and helpful discussions on all aspects of the Kenwood TS-590 family, together with repositories for related files, links, photos etc.
The “TS-590” Yahoo Group … originally created in the United States
The “Kenwood TS-590” Yahoo Group … originally created in Switzerland
Many people are subscribed to both groups.