These are defined for the use of broadcast orders in Workamajig.
Stations can then be linked to a vendor that is in effect the parent company of those stations (i.e. Clear channel is the vendor, yet WKRP is the station).
New station entry screen
Find this by going to: Menu > Media > Today media > New + > Station.
Default stations view
Find this by going to: Menu > Media > Today media > Views > Stations.