South African Journal of Science
versão On-line ISSN 1996-7489
versão impressa ISSN 0038-2353
DAHLGREN, Hanna et al. Solar flares detected by the new narrowband VLF receiver at SANAE IV. S. Afr. j. sci. [online]. 2011, vol.107, n.9-10, pp.40-47. ISSN 1996-7489.
A narrowband receiver was installed at the SANAE IV base in Antarctica to monitor specific very low frequency (VLF) radio signals from transmitters around the world. VLF waves propagating through the Earth-Ionosphere Waveguide are excellent probes of the varying properties of the lower region of the ionosphere. This paper describes the set-up of the narrowband system and demonstrates its capabilities with data from a set of solar flares on 08 February and 12 February 2010.