for instrument (868 MHZ) 35.5002.IT, 35.5003.IT, 35.5010.IT, 35.5011.IT, 35.5012.IT, 35.5014.IT, 35.5015.IT, 35.5016.IT, 35.5018.IT, 35.5019.IT, 35.5020.IT, 35.5022.IT (only one transmitter possible)