A persistent viewpoint
Keep a planned camera position over an incident scene, worksite or perimeter while the ground crew watches the system.
Tethered
Solutions
Ground power changes what a drone mission can be. Plan a steady position, keep the camera or light working, and manage the aircraft from a defined site.
SkyFlow starts with a real configuration: DJI Matrice 400 and the CZI TK4 ground power system. We help match the aircraft, payload, cable and site plan.
The Matrice 400, supplied from the ground.
A conventional battery flight ends with a landing and battery change. A tethered configuration brings power up from a ground station, allowing a planned aircraft position to stay in service while the crew monitors the system below.
CZI identifies TK4 for the Matrice 400. The aircraft, TK4 and payload are separate selections; suitability depends on the exact build.
01
Choose the mission
Observation, scene lighting or another approved payload determines what the aircraft must carry.
02
Plan the ground
Power supply, grounding, crew positions and a clear cable path must fit the site.
03
Match the system
Choose the M400, a compatible airborne unit and the right TK4 cable length together.
CZI TK4
The ground station converts site AC power and sends it through the tether to an airborne unit. CZI specifies 800 V transmission, 4 kW rated airborne output and 100 Mbps power-line communication.
- Aircraft
- DJI Matrice 400
- Tether choices
- 110 m / 200 m
- Airborne output
- 50 V · 4 kW rated
- Ground station output
- 800 V · 4.5 kW
Cable length is a hardware option, not a guaranteed operating altitude. Specifications: CZI TK4.
View TK4 pricing and variantsSee a tethered M400 in flight.
Flight footage from CZI shows a Matrice 400 operating with a visible power tether.
Explore the manufacturer details
Where a tether earns its place.
Aerial scene lighting
Support a compatible lighting payload where a fixed staging area and managed line suit the operation.
A defined work zone
Long-duration work benefits most when power, clearance, crew and cable path can be planned in advance.
Power tether or wash hose?
They do different jobs. HoverWash carries water from a ground pump; TK4 carries power to the aircraft. A combined Matrice 400, TK4 and HoverWash build needs a separate review of weight, connectors, wind and both line routes.
Compare battery and tethered powerOther aircraft need their own match.
The TK4/Matrice 400 combination is our starting point, not a universal adapter. CZI publishes TK3 systems for selected M30, M300 and M350 configurations and TK36 for higher-power work.
Matrice 30 seriesTK3 configuration review
Matrice 300 / 350TK3 aircraft-specific review
Higher-power missionsTK36 project review
Discuss a specific build Questions before you specify.
Tell us the aircraft, payload, desired work position and available site power. We can help define a system before the order is placed.
Ask SkyFlow about your siteWhat is a tethered drone system?
A tethered drone receives power from ground equipment through a cable. Some systems also transmit data. It can support planned long-duration work, provided the aircraft, payload, site power and cable route are suitable.
Which tethered system works with DJI Matrice 400?
CZI specifies its TK4 Tethered Power System for DJI Matrice 400 and its payloads. SkyFlow offers TK4 with 110 m and 200 m cable options. The exact aircraft and payload configuration needs review before use.
Does a 200 m cable permit a 200 m flight?
No. Cable length describes the supplied cable, not an approved altitude. The aircraft, site, line route, weather and aviation rules determine the operating plan.
Is CZI TK4 the same as DJI TB100C?
No. TK4 is a ground station and airborne power system. DJI describes TB100C as a tethered battery for use with a compatible ecosystem partner tether system or dock. Confirm the intended combination with the manufacturers.
Can tethered power be used for drone washing?
A power tether and a wash-water hose are separate lines. A Matrice 400, TK4 and HoverWash combination needs a review of payload, power, connectors, wind and both cable routes before it is used.
What about Matrice 30, 300 or 350?
CZI publishes TK3 configurations for selected older DJI aircraft. SkyFlow can review a specific aircraft and payload, then confirm the correct variant and availability.