In which country is the world's largest-diameter individual radio telescope located?

For the non geography buffs; Puerto Rico's a part of the United States of America. Even if Trump doesn't think so.

I'm not sure this correct. I thought Arecibo was the largest in Puerto Rico up until China finished theirs in 2016.

They are making the distinction between a single (radio) telescope and an array. Since Russian one described has separate reflector components I am doubtful of its veracity. It is bigger than any single reflector dish. But is a composite instrument.

Don't know but China's huge telescope said 500m and RATAN is 576m???