From HFUnderground

Jump to: navigation, search

PSK31 (Phase Shift Keying, 31 Baud) is a digital radio modulation mode, which is used primarily in the amateur radio field for real-time keyboard-to-keyboard communication.

PSK31 was developed by Peter Martinez, G3PLX, and introduced to the amateur radio community in December 1998.(1) (2)


  1. The ARRL Handbook for Radio Communications. 84th Ed. (2007):9-13.
  2. Steven L Karty, N5SK: "PSK31 Spec", ARRL Website

External Links

Online PSK31 receiver tuned to 14.070Mhz

This site is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Some links may be affiliate links. We may get paid if you buy something or take an action after clicking one of these.