Tether is one of the most essential things that can't be ignored. The selection of tether will determine the efficiency of the power being delivered to the thrusters. Several researches been performed before we come out with the decision. To minimize power loss, the tether must be large enough to avoid large resistance through the long wire. So AWG 18 copper wire come in our mind. This type of wire will be used in combination of our ROV control system and thruster system later. At this stage, 3 wires has been combined into one for the next experiment. In the future, we will combine them together with video I/O wire. For budget purpose, we limit it to 10 meter in length.
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