FTC600 has a digital modulator (DDS)including stereo encoder and RDS encoder. TA, TP and PTY can be set via GPIO inputs connecting ON/OFF switches. There are 8 memories to save frequency, power etc. and these memories can be selected by GPIO pins. - See more at: http://www.onair.com.tr/eng/urundetay.asp?id=1092#sthash.pWfA6nmn.dpuf