Input length is 15 inches
For 2nd harmonic, RPM range is from 7832 to 9504 with a pulse strength of 10 percent
For 3rd harmonic, RPM range is from 5885 to 6725 with a pulse strength of 7 percent
For 4th harmonic, RPM range is from 4588 to 5131 with a pulse strength of 4 percent