PSK31 app

PSK31 is popular form of narrow-band modulation and low transmit power text communication aid on the radio amateur HF bands. Now you can do this with an iPod Touch and the app I-Psk31!

See a short video here showing how I did receive a CQ from F5PEZ in France. This was on the 10 MHz band today. I just put an external microphone to the iPod Touch close to the loudspeaker of a Yaesu FT-857D transceiver´s loudspeaker. It was a little tricky to tune in the PSK31 signals and I did not try to send my own PSK31 signals.