Trafikverket
The Swedish Voluntary Radio Organization (, FRO) is a Swedish volunteer defense organization (a signals auxiliary) that aims to maintain and develop excellence in Communications and Information systems (Information Technology - and radio communication). FRO trains radio operators, technicians, squad leaders and communications staff for the Swedish Home Guard and civilian operators for the Swedish Civil Contingencies Agency, the Swedish Transport Administration and the Svenska Kraftnät (the Swedish electricity and natural gas transmission system operator).