2nd generation of Callisto

Prototype of printed circuit board Callisto based on NXP tuner CD1316L/IHP-3.
The original tuner CD1316L/IV is no longer available. Unfortunately also the firmware in RISC-processor ATmega16 had to be adapted.

Installation #17 at Metsähovi observatory, Finland

17# Callisto installation at Metsähovi Radio Observatory in Finland took place 1st of September until 3rd of September 2010. Access to on-line data and lightcurves via web-interface here:
http://www.metsahovi.fi/callisto/
The logarithmic periodic antenna (DBV-T) is attached to the rim of a microwave telescope dish that observes the solar radio flux at 11 GHz. Picture taken by Juha Kallunki MRO.