Navigation and video recording at the same time is extremely challenging but I have found an acceptable solution. I ,as we do, had kept my redundant mobile in car phone holder wondering how I could make use of it when I thought of attaching it to my transmitter.. so I made a simple bracket which slides over the transmitter carrying handle which provides a smooth aluminum face for the suction part to attach to. Then by articulating the arm to position the mobile pointing at the boat I can ignore trying to track the boat because I am always pointing the transmitter at the boat.👍