UTR-2 is the world's largest decameter wave radio telescope. It is located near the city of Chuhuiv and is owned by the Radio Astronomical Institute of the National Academy of Sciences of Ukraine.

The radio telescope is a large phased array antenna designed for observations in the range of 8-33 MHz. It is the main component of the URAN radio interferometer system. The effective area of ​​a radio telescope at 20 MHz frequency is 150,000 square meters (!). Each of the rays stays on top of the kilometer-long underground tunnel filled with waveguides, amplifiers, and phase shifters.

During the years of operation, UTR-2 has been modernized and refitted many times and the process hasn't stopped yet. The construction of sections of the new GURT radio telescope continues close to the beams of the old radio telescope. Electronics has also undergone many changes - now it takes up ten times less space than its Soviet ancestors, which can still be seen in the museum room.

Nowadays UTR-2 is mainly used in the research…

Міська влада Києва почала змінювати таблички на вулиці Джона Маккейна. Вулицю перейменували на честь американського сенатора ще 2 роки тому, одразу після його смерті, але лише тепер на будинках з’явилися відповідні знаки. https://t.co/qO6gGtccUO