G12-M4D Tethered Power System

The G12-M4D Tethered Power System is specifically designed for the DJI Matrice 4D/4TD series drones, providing safe and reliable long-endurance flight capability of up to 24 hours or more. It resolves operational shortcomings such as limited flight time, rapid battery depletion under heavier payloads, and the need for frequent battery replacements. It is ideal for scenarios and environments requiring prolonged hovering or the carrying of high-power payloads, successfully expanding the operational capabilities and application fields of the Matrice 4D series drones.

The system consists of a ground-end device (tether box) and an airborne device (airborne power supply). The all-in-one tether box integrates an AC/DC transformer module, a tether cable, a cable winding/unwinding device, a servo motor, a communication module, a cooling system, and a control management system. The lightweight DC/DC airborne power supply can convert 850V high-voltage electricity into the low-voltage power required by the drone and its mission payloads, delivering constant, regulated, safe, and reliable power supply.

The system utilizes 850V high-voltage power transmission, allowing the tether cable to be thinner, lighter, and have less wind resistance, thereby reducing the load on the drone's propulsion system. The brand-new AI speed and torque control system supports cable winding/unwinding speeds of up to 3 m/s. It supports rapid ascent/descent and emergency stops without issues like cable twisting, cable shaking, large cable sway, or cable jerking during sudden stops, achieving truly hands-free, contactless, and automatic cable management. It also supports multi-terminal interconnection across equipment, smartphones, computers, and drone remote controllers.

The Matrice 4D series tethered drone comes with an integrated gimbal camera and can carry mission payloads such as floodlights, searchlights, and loudspeakers. This enables applications such as long-endurance hovering video recording, regional surveillance, high-power illumination, search operations, and audio broadcasting.

Core Highlights

• Ultra long Flight Duration

• Lightweight and Portable

• Quick Installation

• Easy to Operate

• Stable Voltage Supply

• Safe and Reliable

• Multi Terminal Interconnection

• Expand Infinitely

ADVANTAGES AND FEATURES

★ Easy to operate and get started with

• ✓ The entire process from take-off to landing does not require any operation on the mooring equipment

• ✗ No need for wire poles, no related operations, and no need to pull out a large number of cables before takeoff

• ✗ No torque adjustment knob, emergency winding switch, or related operations, truly automatic winding and rewinding

• ✗ No need to pre-set voltage, internal resistance, tension, speed, etc., no operation required throughout the entire process

• ✗ During the flight, there is no need to set up or operate mooring devices, just operate the drone

• ✗ No need for the operation of "turning on high voltage after takeoff, turning off high voltage and wire switch before landing"

★ Automatic cable retraction function

• ✓ The cable will adapt to the control tension of the drone during takeoff and landing to achieve synchronous retraction. During the entire process of drone takeoff and landing, the operator does not need to approach the mooring box for any operation, only needs to pay attention to the drone operation itself.

• ✗ All similar products claim to have automatic cable retraction function, but the so-called "automatic cable retraction" is a manual adjustment or button retraction method, which generally requires manually setting different gears. However, if the torque is high, the force will cause pulling force on the drone, and if the torque is low, the cable cannot be retracted. Button retraction requires the drone to fully land before it can retract the cable, and cannot achieve automatic cable retraction without operation.

★ Excellent wind resistance capability

• ✓ When the wind blows on the cable, it will bend flexibly due to the maintenance of tension. When the wind is weak or stops, the cable will recover to maintain tension, and there will be no pulling force on the drone in this state.

• ✗ If there is no tension maintained, the cable will swing hard with the change of wind force, causing continuous and irregular pulling force on the drone, and there is a risk of the cable touching the propeller in this state.

★ Strictly prohibit live operation

• ✓ This product does not require operation after power on, and the pilot only needs to operate the drone itself. It is strictly prohibited to touch the tied cables during use.

• ✗ The cable transmits high voltage electricity. Although it has an insulation layer and is resistant to high voltage breakdown, there is still a risk of high voltage leakage in humid environments or under conditions such as wear and tear that may occur during use. Even if insulated gloves or other methods are used to touch the cable, there is a risk of electric shock.

★ Stable and reliable power supply

• ✓ The voltage output of the air module is stable, and the drone battery does not participate in the mooring work

• ✓ The drone battery can maintain its safe backup function without continuous power or voltage loss

• ✓ The air module will not charge the drone battery, so it will not be harmed as a result

• ✓ The drone battery will not lose power and can be continuously used for secondary tethered flight operations

★ Comprehensive protection for safe operations

• ✓ Real automatic cable retraction, away from high voltage, safe operation

• ✓ Because there is no operation, it greatly improves the operator's focus and safety in their work

• ✓ External power interruption can also automatically retract the line, as there is a backup battery available

• ✓ Contactless operation, away from high-voltage electricity

• ✓ Cable breakage, short circuit, detachment, automatic shutdown of high voltage

• ✓ The side cable outlet design can avoid the risk of cable entanglement when the drone lands on the ground

• ✓ The cable follows the tension throughout the entire process, without any pulling force caused by shaking or cycloids

Inventory List

Note: The illumination light is an optional accessory. If not selected, please disregard it and its related content.

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