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arxiv: astro-ph/0412685 · v1 · submitted 2004-12-30 · 🌌 astro-ph

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The Australian experience with the PC-EVN recorder

R. Dodson (1 , 2) , S. Tingay (3) , C. West (3) , C. Phillips (4) , A. Tzioumis (4) , J. Ritakari (5) , F. Briggs (6) ((1) Institute of Space
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Astronautical Science Japan (2) University of Tasmania Australia (3) Swinburne University of Technology (4) Australia Telescope National Facility (5) Metsahovi Radio Observatory Finland (6) The Australian National University)
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classification 🌌 astro-ph
keywords mbpspc-evninterfacerecorderrecordingvlbiaccessallows
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We report on our experiences using the Metsahovi Radio Observatory's (MRO) VLBI Standard Interface (VSI, Whitney 2002) recorder in a number of astronomical applications. The PC-EVN device is a direct memory access (DMA) interface which allows 512 megabit per second (Mbps) or better recording to "off the shelf" PC components. We have used this setup to record at 640 Mbps for a pulsar coherent dispersion system and at 256 Mpbs for a global VLBI session. We have also demonstrated recording at 512 Mbps and will shortly form cross correlations between the CPSR-II and the PC-EVN systems.

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