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Callisto - A New Concept for Solar Radio Spectrometers

Benz, Arnold ; Monstein, Christian ; Meyer, Hansueli

In: Solar Physics, 2005, vol. 226, no. 1, p. 143-151

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    Titel
    • Callisto - A New Concept for Solar Radio Spectrometers
    Autor
    • Benz, Arnold. Institute of Astronomy, ETH Zürich, CH-8092, Zurich, Switzerland
    • Monstein, Christian. Institute of Astronomy, ETH Zürich, CH-8092, Zurich, Switzerland
    • Meyer, Hansueli. Institute of Astronomy, ETH Zürich, CH-8092, Zurich, Switzerland
    Dokumententyp
    • Postprint
    Sprache
    • Englisch
    Veröffentlicht in
    • Solar Physics, 2005, vol. 226, no. 1, p. 143-151. Kluwer Academic Publishers
    Andere elektronische Ausgabe
    Klassifikation
    • Technik, Ingenieurwissenschaften
    OAI-PMH-ID
    • oai:doc.rero.ch:322008
    Summary
    A new radio spectrometer, CALLISTO, is presented. It is a dual-channel frequency-agile receiver based on commercially available consumer electronics. Its major characteristic is the low price for hardware and software, and the short assembly time, both two or more orders of magnitude below existing spectrometers. The instrument is sensitive at the physical limit and extremely stable. The total bandwidth is 825 MHz, and the width of individual channel is 300 kHz. A total of 1000 measurements can be made per second. The spectrometer is well suited for solar low-frequency radio observations pertinent to space weather research. Five instruments of the type were constructed until now and put into operation at several sites, including Bleien (Zurich) and NRAO (USA). First results in the 45-870 MHz range are presented. Some of them were recorded in a preliminary setup during the time of high solar activity in October and November 2003