To Synthesize or not to Synthesize

[BrianG]

I haven't used an AM system with BL, but I'd imagine it's not a good idea. AM modulates the servo signal on the tops and bottoms of the RF carrier signal, which is the exact place where noise would affect. FM is better since the frequency of the carrier signal shifts in proportion to the servo signals. The radio actually chops the tops and bottoms of the noisy carrier signal which makes FM much cleaner. Typically, both AM and FM are analog modulated. Digital is even better as there is usually error checking involved, not to mention the carrrier frequency is higher and out of the range of just about every noise making device on a BL setup (UBEC, motors, etc).