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Viestikallio - The Great Pumpkin

The Great Pumpkin Project 1998-

For past few years the largest project at the society has been installing a 13.7 meter diameter millimeter wave (up to 100 GHz) parabolic mirror antenna. This antenna, and its protective radome have earlier been in use a Metsähovi Radio Research Station, and its original manufacturer is: ESSCON.

The radome foundation building, base tower, and pedestal machinery is presently (2001) under design with an aim to complete that phase by summer 2002. At that time the most difficult project of it all, acquiring funding, will commence.

The initial estimates about the cost are 0.2 - 1.0 million EUR.

• Kurpitsa system designs
• Photo tour to Metsähovi Radio Observatory
• Photo gallery of mirror back support structure
• Making actively controlled surface
• Tracking issues for the "Great Pumpkin"
• Pictures/drafts about Kurpitsa placement:
  • Finer grained terrain mapping with building placements vers. (1b): smaller, larger, pdf
  • 2002-05-11: lots of measurements produce better maps:2002-05-12 map. More pictures: (1, 2, 3, 4)
  • 2002-05-13: 2nd round: PDF, gif, fig, fig-base-gif.
    • Orientation along HF1-HF3 direction
    • At the side (NE) there is a parking-lot area with relatively little required filling (possibly from excavation)
    • Flooring from e.g. precast concrete slabs
    • elevations (1b-2b): gif pdf
    • Building components/construction phases
      
      Animated GIF of (4.4 MB!)   POVRAY model
    • Study of structural models
      
      Animated GIF of (4.2 MB!)   POVRAY model
    • elevations (1b-2): gif pdf
    • A full-height basement available with a small excavation
    • Rendered model of the Great Pumpking made partially into the hillside:
      
        -A-   -B-   -C-
  • Finer grained terrain mapping with building placements vers. (1): smaller, larger, pdf
    Early model, likely to be discarded
  • Finer grained terrain mapping with building placements vers. (2): smaller, larger, pdf
    Early model, likely to be discarded
• Drafts about buildings, and their heights (bigger) (PDF)
• Estimate of the horizon profile of the mirror low edge height (bigger) (PDF)
• Falsecolor view of the area from west
• Composite presentation of altitudes, 1
• Composite presentation of altitudes, 2

Would it look like this ?

Matti Aarnio <matti.aarnio@zmailer.org>; OH2MQK