I'm a little confused. I bought a 900Mhz system ages ago, which came with the Sony 520TVL camera. It's not too bad a camera and I'd like to use it, but thought perhaps the Fatshark one might be better (it's a lot more expensive though has a smaller lens...). That's why I was thinking RTF Predator and upgrade the tx when I got tired of closer range stuff with the 100mW. But then if the camera's rubbish, I might be better off getting a Predator set, Immersion 600mW tx and run my camera straight up.