Introducing UltraMSK
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.
Features
- Measures both signal amplitude and phase
- Receives both 100 and 200 baud MSK signals
- Receive multiple stations simultaneously at arbitrary recording time resolutions
- Text and binary formatted data output options. Easily imported into other applications. Easily compressed for efficient archiving
- Uses standard PC audio hardware
- Minimal custom hardware required. Can use your existing VLF antenna infrastructure and GPS receiver
- Runs on Linux for easy remote operation and administration over the internet
Sample UltraMSK data can be viewed in the Gallery.
Latest News
May 2019: The quick start guide has been updated
Sep 2018: The hardware section has been updated
Nov 2016: Design notes for a portable VLF preamplifier are available.
Jul 2013: Installation instructions for Fedora 17 are now online. Binaries are available for Ubuntu
01 May 2019