I have a Phantom without cam. I have a cam by name FC40. What do i need to get this cam on my craft? Do i need a Wi-Fi Range Extender? I see the FC40 cam have wifi but it`s on 2.4G, and the controler is 2.4G
A regular Phantom 1 or 2 (non Vision) uses 2.4GHz for its control connection (Tx-Rx) and you should use 5.8GHz for FPV connections. The FC40 camera is only suitable for Phantoms that use 5.8GHz for control connection because it uses 2.4GHz too.
You'll very likely to experience loss of control/flyaway when you fly with a camera that emits a strong 2.4GHz signal so close to the Phantom's Rx.
You can start/stop recording video with the red button on the camera. Dunno whether after a while it switches WiFi 'pairing' off similar to Bluetooth. If there's no device connected where it can send the video signal to over WiFi it can't so it doesn't.
I don't know whether the FC40 cam will stop emitting a WiFi signal if after a while no device has contacted it. You could make it record manually and after 5 minutes or so load the DJI FC40 app and check whether the FC40 shows up. If it does then apparently the camera is not in 'WiFi sleep mode'. If it doesn't.... who knows. You'll need a radio spectrum analyser or something to determine whether the FC40 cam is emitting a signal or not. Have one of those lying around?
I wouldn't risk my Phantom trying it out in flight. You could take off the props and turn on the Tx and the Phantom and hold the FC40 cam near the Phantom and walk away with them from the Tx. If the Phantom starts doing funny things you'll be absolutely certain to never use it with your 2.4GHz Phantom. If it doesn't act funny that tells you nothing though.
Okay. I do not think i am going to use this cam, I am going to by me a Gopro and turn off the wifi and start recording without livestream. So in the future i am going to by me stuff so i can get livestream. I think this is a good idea, i can`t risk my Phantom. Do you think that is a good idea?