Autocorrelations R₂(ξ), where ξ is a displacement in frequency, of chaotic spectra with odd parity: (a) 206 levels from 28.35 ω_p to 46.89 ω_p, (b) 223 levels from 28.15 ω_p to 44.09 ω_p, (c) 217 levels from 26.02 ω_p to 40.29 ω_p, (d) 283 levels from 23.57 ω_p to 36.22 ω_p and (e) 170 levels from 24.02 ω_p to 30.01 ω_p. The autocorrelations have been normalized such that their value at the origin is unity. The main peak’s position is labeled Δ_c and marked with a solid line. Secondary peaks are marked in panels c, d and e with a dashed line.