Input length is 13 inches
For 2nd harmonic, RPM range is from 9037 to 10966 with a pulse strength of 10 percent
For 3rd harmonic, RPM range is from 6790 to 7760 with a pulse strength of 7 percent
For 4th harmonic, RPM range is from 5294 to 5920 with a pulse strength of 4 percent