Hi everyone. I am new in Phantom and I got Vision 2+. I want to extend my range so I have to ask some questions to ensure. 1. What a antenna wire are in legs? Vision or controll? 2. My range extender has one 9dBi antenna (I bought with this modification), do I need second antenna? Because this extender has two inside. 3. What's difference between antenna arrangement? I mean 4. Where is controll antenna inside drone? Thanks.