The system I have is good to out past 1200m. I tried a yagi antenna, but it didn't work. The cheap little plastic ones that come with it work great! A system that is only good for 2-300m is useless, just use a spotting scope. The whole idea behind this system is to spot your shots at long distance, beyond the capabilities of a spotting scope, without having to travel the 1000meters, each way, to your target!