I'm running the FatShark goggles with the 250mW 5.8 GHz A/V transmitter that came with them. I've also got the mini iOSD and a Goodluckbuy gimbal (on a v1.1 Phantom). The video feed is being fed from a GoPro 3+ Black Edition on the gimbal. I've been using this setup for about a year, and decided that I'd like to feed 5v to the GoPro to charge the battery while in flight. Is it safe to pull the necessary 5v for the GoPro from the 250mW transmitter (it has a 5v Out) - or would this be too much draw? If so, any recommendations as to where else I could pull a safe 5v from?