Metsähovi Radio Observatory hosts multiple instruments for studying the universe in radio frequencies. Metsähovi radio telescopes are being used for observations almost 100% of the time. To discuss the possiblity of specific experiments, please contact metsahovi at aalto dot fi.
For more information about the equipment, see here. In short:
The main 14-metre radio telescope
The largest instrument in Metsähovi is the 13.7-metre radio telescope. The telescope is a crucial tool in many projects, such as solar studies, extragalactic radio source observations and international interferometric observations (very long baseline interferometry, VLBI). The telescope is located inside a protective radome that shields the telescope from wind, rain, snow and solar heating. Available receivers include 22 GHz (continuum and ver), 37 GHz (continuum), 43 GHz (VLBI), 86 GHz (VLBI). A H2/2026-H1/2027 are reserved for commissioning and testing of the new triple-band receiver.
Metsähovi Compact Array (MCA)
The Metsähovi Compact Array (MCA) is a radio interferometer consisting of 5.5-metre radio telescopes, built for research and education. For more information, see the Metsähovi Compact Array. As of fall 2025 MCA-1 and MCA-2 can be used separately and as an interferometer. MCA-3 comes online in winter 2025-2026.
Sun antenna (SunAnt)
The 1.8-metre solar telescope SunAnt is used for continuous monitoring of the Sun's radio emission at 11.2 GHz. It is located outside with no radome and it tracks the Sun from sunrise to sunset. The radio telescope also contains two additional radio antennas that capture low-frequency signals of solar flares as part of the international e-Callisto monitoring network.
Radio Telescopes
Metsähovi Radio Observatory hosts multiple instruments for studying the universe in radio frequencies, ranging from small antennas to 14-metre parabolic dishes, including a radio intereferometer consisting of 5.5-m radio telescopes.
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