Comparison of HOD and HAM mocks in real space shown with 10 (5 and 2) MHz in red (blue and green). Upper panel: HOD results are shown as thick solid lines, and the HAM results are shown as faint solid lines. For better illustration, we artificially amplified the curves by 0.5 (1 and 2) times for 10 (5 and 2) MHz results. Lower panel: ratio of the angular power spectrum of the HOD mocks and HAM mocks. Clearly, HAM mocks have a higher angular power spectrum at small scales, and it depends weakly on the bin width.