Synthetic échelle diagram of the radial modes of a typical red giant star with a large separation of 3.90 μHz. The glitch contributions are overplotted with a dashed red line and red diamonds for a typical clump star, and with a dot-dashed blue line and blue triangles for a typical RGB star. The horizontal dashed black line with a n value of approximately 7.6 represents the n_max value. Only six radial modes are shown in this figure, which is typically the number of observed modes.