Input length is 11 inches
For 2nd harmonic, RPM range is from 10680 to 12960 with a pulse strength of 10 percent
For 3rd harmonic, RPM range is from 8025 to 9171 with a pulse strength of 7 percent
For 4th harmonic, RPM range is from 6256 to 6996 with a pulse strength of 4 percent