|Location(s)||São Gião, Oliveira do Hospital, Coimbra District, Portugal|
|Altitude||704 m (2,310 ft)|
|Telescope style||radio telescope|
|Diameter||9.3 m (30 ft 6 in)|
|Related media on Commons|
The São Gião Radio Telescope is situated in the parish of São Gião Portugal. It was constructed in 2015, with first light in December 2015. The gregorian telescope has a diameter of 9.3 m. As of 2019[update] it is the biggest radio telescope in mainland Portugal. Two 3 phase motors drive the azimuth and elevation (or altitude) servo systems with an accuracy of 0.01 degree. The main reflector has a solid reflector surface that makes it suitable for observations of high frequencies up to 22 GHz.
It is used to observe the hydrogen line from our galaxy and maser signals from star-forming regions and late evolution AGB or OH/IR stars. The frequencies used for the hydrogen line is 1.42 GHz and maser signals are measured on 1.612, and 12 GHz The data results obtained with the telescope were presented on EUCARA 2016 Dwingeloo Netherlands  and on the ASTROFESTA 2018 in Constancia Portugal. The telescope data and methods are also referenced by universities like the Western Kentucky University, and societies like Ofiuco and the Society of Amateur Radio Astronomers.
A report from the Correio da Beira Serra newspaper about the São Gião radio telescope, can be consulted here.
- "First light of the Sao Giao Radio Telescope of H1". Retrieved 2019-01-07.
- "Project MK27: Capturing water masers on 22 GHz with the Săo Giăo Radio Telescope". Retrieved 2022-11-30.
- "Late evolution of low- and intermediate-mass stars" (PDF). Retrieved 2019-01-08.
- "Masers; the OH molecule detection in NML cygni / OH80.8-1.9". Retrieved 2019-01-07.
- "Complex object W3(OH) at methanol line CH3OH at 12.178 GHz". Retrieved 2019-01-07.
- "Michiel Klaassen – Disassembly, re-construction and first light of a 9.3m radio telescope". Retrieved 2019-01-09.
- "The São Gião Radiotelescope and the origin of matter". Retrieved 2019-01-09.
- "Agosto é o mês dos astros em Portugal". Retrieved 2019-01-09.
- "Sao Giao Radio Telescope (PARAC)". Retrieved 2019-01-09.
- "PARAC (Portugal Amateur RadioAstronomy Center)". Retrieved 2019-01-14.
- "SDR Radio Project Sites". Retrieved 2019-01-14.