According Russia the radar station located at Ust-Donetsk (in Russia) recorded the situation in the air above Eastern Ukraine at July 17, 2014. The raw primary recordings were all of a sudden found around September 2016 after the Dutch investigation team requested Russia many times to hand over all radar data.
The location of the radar is here. The distance to the location where MH17 was hit by a BUK missile is 175 km.
The maximum range of this Utes-T radar is 360 km. More specifications here.
This is the vertical and horizontal range of a similar radar as the Utes-T. Taken from the Almaz Antey website.
Photo of the radar station at Ust-Donetsk. While looking at the satellite photo you see the colours of the radome do not match. The photos taken from the ground level have a red ribbon runnin horizontally. The satellite photos show a red line running vertically. I guess sometime the radome was repainted.