How many ground waves can Bozhou receive?

Bozhou ground wave can receive 20 stations. There is no definite answer to how many stations the ground wave receiver can receive. Ground wave signals are transmitted by local radio and television stations, with about 20 stations at most and only a few stations at least. There is no ground wave signal in some places. The ground waves in Bozhou city are: 490,498,514,610,618,634 respectively.