How does the point wave drift principle work?

1, the working principle is that there are electronic circuits and button cell inside the float. Button cell is very heavy and placed at the bottom of the float, so that the float can stand upright in the water. The bottom of the float has a needle-shaped underwater electrode, and the periphery of the float has a metal ring, which together form a water switch to control the work of the circuit. The circuit board is vertically inserted into the belly of the hammer shell, and the generated FM oscillation signal is emitted through the antenna in the floating tube.

2. The operation of the circuit is controlled by water switch SK. When there is no fish biting the hook, adjust the draft of the float so that the metal ring at the middle red line is not in contact with water, the water switch SK is not turned on, and the oscillation circuit does not work. When the fish bites the hook, the float swings and even is dragged into the water, so that the metal ring contacts the water surface, the water body is connected with the "underwater electrode", the transmitting circuit starts to work, and the fish hook shines in the electronic drift. And sends out FM radio signals to inform the receiver. The angler can grasp the situation of biting the hook through the signal and grasp the opportunity to lift the hook in time.