The new Vampower RP8D1 is the world's smallest and lightest 8 channel Dual Conversion synthesized receiver. These are full range receivers and are perfect for any model. Because it's synthesized, you won't ever have to worry about crystals again! The Auto-Shift allows it to will work with any brand radio currently on the market (positive or negative shift) The new RP8D1 maintains the same high quality you've come to expect from Vampower. Try one (or more) today. You'll be glad you did! This receiver will only work with a 4 or more channel radio running in FM / PPM mode on 72mHz. If you have PCM, there is a probably a setting somewhere to change it to PPM.