FrSky has created a new version of the STK, The FrSky S.Port AirLink. This is an updated version of FrSky S.Port Tool Kit (STK) which adds a wireless mode and a monitoring function.
Upgrade S.Port devices
Configure S6R/S8R/Sensors with PC software
Configure S6R/S8R/Sensors wirelessly with Free Link (Apple Store only at present)