What range of frequencies does the QRS system provide, and Which frequency signal is the best?
A pulsed electromagnetic field system should have a wide frequency range in order to produce beneficial therapeutic physiological actions on the body. The QRS offers a frequency range from 0.3-1,000 Hz. Many companies that sell other PEMF devices claim that their product has the best pulse form. All kinds of pulse forms have been used in the research that has been done on pulsed electromagnetic fields. Unfortunately, there has not been much research done that compares which wave form is best. The QRS uses a saw-tooth wave and is modulated with a sinusoidal wave form as a basic carrier frequency which has been proven effective in clinical studies.
