Introducing UltraMSK

MSK modulation Welcome to UltraMSK. UltraMSK is a VLF radio receiver suitable for use in scientific research applications involving the remote sensing of the ionosphere or magnetosphere. UltraMSK measures both the phase and amplitude of MSK or CW/OOK modulated narrowband VLF radio signals. UltraMSK is implemented in software and runs on standard PC hardware.


Sample UltraMSK data can be viewed in the Gallery.

Latest News

Nov 2016: Design notes for a portable VLF preamplifier are available.

Installation instructions for Fedora 17 and CentOS are now online.

Binaries are available for Ubuntu

01 Apr 2018