If you’ve just received a HobbyKing FPV bundle (and no instructions!), then you might be wondering how to power the receiver. The easiest way is to buy a DC extension from your local electronics store, or from DealExtreme (for $1.53), and make your own cable with a DC connector on one end, and a battery connector (e.g Deans) on the other, and power it using a 3S lipo. The DC connector doesn’t have to be an exact fit, as the FPV RX has a strong metal spring to hold the jack in place – so you should be able to get away with something “close enough”.

Cut the end of the DC extension off – then solder the pin/core wire to the POSITIVE end of a battery plug, and the shield to negative. You might want to double check which wire is connected to the pin using a multimeter. After soldering, insulate them with heat shrink, and you’re done. Just remember, THE PIN IS POSITIVE.