Chuck, Read the above post by Truckracer. Then read all the advertisements run by the radio manufacturers. They are all toting how their system is the best for many reasons but not a single one mentions radio frequency interference immunity, and for a good reason. There is no such thing. What you have heard is the usual rapid excessive rhetoric that modelers expound when they in all reality know very little about what they are talking about. Layout your radio and R/C system using good RF techniques. Dan.