Now store your DTMF callsign into your TH-D7 radio:
Repeat the above process and save your abbreviated callsign in memory location "0". Name it maybe "call" for short.
SENDING APRStt DTMF DATA...
To send DTMF data, just press PTT and then the DTMF keypad is active and can be used to send any position or text data followed by your callsign. To send your callsign from DTMF memory, while holding the PTT, just press the MENU key and the last DTMF memory you used comes up. either scroll to memory 0 or 1 as needed and then press OK to activate automatic sending.
Good luck! Enjoy APRStt