Quad-Light
- Home
- Quad-Light

Reliable Tethered UAS Solution with Low Ground Power Need
Zenith Aerotech’s (ZAT) Quad-L sUAS provides advanced power, payload and endurance over other systems on the market today.
- Unlimited Time on Station
- Simplified Operation
- Heavy Payload Capacity with Options
- Hover Altitude up to 400 feet AGL
- Enhanced Fail Safe Operation
ZAT Quad-L is designed and built in the US and is NDAA compliant. The frame and support structures are fabricated from lightweight, high-strength carbon fiber. The design is durable, allows for flexible payloads, and offers an excellent strength-to-weight ratio.
The closed fuselage structure protects internal components from rain and dust. The motor arms and blades are field-replaceable, utilizing a quick release design. Due to its detachable arm design, the ZAT Quad-L allows for easier transport. Quad-L supports tethered operation and various payloads such as communication devices, EO/IR cameras or other custom devices up to 8 lbs.
The ZAT Quad-L platform delivers performance and reliability for mission critical applications.

Reliable Solutions for Critical Applications
100+ hrs Proven Endurance
Zenith Aerotech, a leading developer of heavy-lift tethered drones, announced that, over the span of a week,
Read MoreCounter Drone Capabilities
Tethered drones are being used as counter-drone solutions, offering a unique and effective approach to detect
Read MoreEase of Operation
With using Zenith QGC software, one button take off and landing operation. Once the system checks are comp
Read MoreNo RF Emission
All telemetry, sensor and control data is transmitted over F/O line in the tether, resulting in no RF interfe
Read MoreReliable and Safe Operation
Back-up Battery Zenith tethered drone system has a back up battery both in drone and ground station, if an
Read MoreVariable Height Antenna
Tethered drones are increasingly being used as variable height antenna and radio relay systems, offering a un
Read MoreQuad-L Payload Options

Aerial Lighting

Radio Relay

EO/IR Gimbal
Zenith QGC Software

Zenith QGC software is a ground control station software which is dedicated to tethered drone operations, designed for the operators to proceed successful missions. In a basic operation, operator presses take-off button, enters flight altitude to the slider and confirms the take-off. Tethered drone system will automatically take off and hover in the altitude.
Operator can navigate with clicking on the map and use go to function, operator can also yaw to the position, all the payload data and controls are implemented on the software. For ending the mission operator clicks to the land button and confirms the action. All the safety procedures and fail safe options are automated, operator does not need to take action for these applications.
Unique Functions
Power Compensation
Zenith ground station compensates the voltage drop occured through the cable in order to carry high payloads in higher altitudes.
High Thrust to Weight Ratio
Zenith tethered drones have high thrust to weight ratio in order to provide a reliable flight with 400 feet of cable even in windy weathers.
Made in U.S.A
All Zenith tethered drone systems are made in U.S.A. and they are NDAA compliant. Our products are widely used by government customers.
Techical Specs
400
Hovering Altitude (ft)108
Proven Flight Endurance (hr)8
Payload Capacity (lbs)1800
Ground Power (w)Application Areas

Variable Height Antenna
Tethered drones are increasingly being used as variable height antenna
Read More
Persistent Surveillance
Tethered drones are being used as persistent surveillance systems, off
Read More

Emergency/Disaster Response
Tethered drones, also known as tethered aerial platforms, are becoming
Read More
Counter Drone Solutions
Tethered drones are being used as counter-drone solutions, offering a
Read More