Input length is 19 inches
For 2nd harmonic, RPM range is from 6183 to 7503 with a pulse strength of 10 percent
For 3rd harmonic, RPM range is from 4646 to 5309 with a pulse strength of 7 percent
For 4th harmonic, RPM range is from 3622 to 4051 with a pulse strength of 4 percent