Qinghai province handles radio call sign.

please consult Qinghai radio management center. The address is opposite to Wuyi Road Labor Park. But the call sign monitoring center is located at No.1 Xinghai Road, the corner building where huanghe road and Xinghai Road cross. There is a big receiving antenna. Generally speaking, amateurs can handle it. If not, you can find a spontaneous organization of outdoor travel in Xining to help you handle it. It depends on your relationship.