PSKer is a PSK31 receiver and transmitter. Features:
* PSK31 send/receive
* Universal app
* Landscape mode on the iPad, Portrait mode on the iPhone/iPad
* Configurable macros for common messages (CQ, ...)
* Automatic frequency locking
* Realtime sonogram w/zoom view
* Support for mic and line-in receive, and speaker-out/line-out transmission.