Tell us about yourself!
40CH are compatible with more FPV equipment. Many of the new FPV racing needs more channels as more people fly in the same area so you can get better signal since you can tune more channels to find the best one.The above is what the supplier told me. I add the picture blew, it seems smaller.
looks great !!!I don't know much about the fpv equipment.I find a transmitter with 40CH, while the normal only has 32CH. The supplier told me it only needs $10. Does the transmitter with 40CH has more advantage ?