Tests show that all of the Isles of Scilly can be covered from this site , and the transmitter output power is 100 watts vertical polarisation .
The station is licensed for up to 200 watts mixed polarisation .
Tests show that all of the Isles of Scilly can be covered from this site , and the transmitter output power is 100 watts vertical polarisation , although the station is licensed for up to 200 watts mixed polarisation .