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Stuttgart 2012 – scientific programme

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P: Fachverband Plasmaphysik

P 22: Poster: Sonstiges

P 22.2: Poster

Thursday, March 15, 2012, 16:30–19:00, Poster.III

The Darmstadt VLF/LF radiophysical station VADar — •Christoph Maurer, Claudia-Veronika Meister, Steffen Hauf, and Dieter H. H. Hoffmann — Institut für Kernphysik, TU Darmstadt, Schlossgartenstraße 9, 64289 Darmstadt

Since 2010, based on the knowledge of the Graz and Bari members of the International Network for Frontier Research on Earthquake Precursors INFREP, a new VLF/LF radiophysical receiver called VADar (VLF Antenna Darmstadt), is under construction at Darmstadt University of Technology. VADar uses the UltraMSK software for measuring phase and amplitude of MSK-modulated signals with carrier-frequencies up to 96 kHz. This is double the usual frequency-range of other facilities using UltraMSK. It is planned to add two loop antennas for direction finding. In order to conduct phase-measurements a time standard of sufficient precision is necessary, which is provided by a one-Pulse-Per-Second (PPS) signal of a GPS-station. The VADar data will be used to record short-term electron density variations in the lower ionosphere and atmosphere. This data will be used for comparison of modifications of signals propagating at the same time above seismo-active and non-seismic regions. First Darmstadt VLF data are presented.

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