How to connect our FT 817 radio on IPAD and transmit in digital via PSK31?

A number of apps exist for different digital modes for iOS devices. RTTY, AX.25 Packet, PSK31,  SSTV .

PSK31: I tried both softwares on the APP store:
hese are working very well but I suggest PSKer.

It’s worth mentioning at this stage that the iPad is VERY sensitive to the input level on the microphone line, and using the PSKer app you need to tweak the level adjustment until there is *just* a spattering of noise on the waterfall.

Here the proof of the QSO in PSK31 via IPAD.

To buy the interface: