From charlesreid1

Overview

PSK (phase shift keying) is a digital method of communication. It is good for weak signal digital communication, and is therefore more popular on HF. It is not as common on VHF and UHF.

Software

On Linux you can transmit and receive PSK signals using Fldigi.

On an Android you can use the DroidPSK app or any of a range of other PSK-capable apps.

PSK In Action

See PSK in action, with two devices communicating via sound interfaces (microphone/speaker):

PSK31: Fldigi to DroidPSK from charlesreid1 on Vimeo.

Flags