Gallery of UltraMSK VLF data

Antenna mast

Below is a sample of VLF data obtained using UltraMSK. All signals were received in Dunedin, New Zealand, using a vertical electric field antenna.

Each plot has a title of the form XXXYYYYMMDD.txt where XXX is the transmitter call sign and YYYYMMDD is the date. All times and dates are given in UTC. On each plot the blue trace represents the high frequency of the MSK modulation and the red is the low frequency.

Interested in setting up your own UltraMSK receiver? The UltraMSK system requirements section has more information.

Back 25 Sep 2009