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Sky Drone Link 4k

Sky Drone Link 4k

  • $1,899.00 USD

Not sure which LTE modem option to select? Check Sky Drone Modem Options.

Sky Drone Link 4K is a transmission system for drones that transmits UHD video from any HDMI connected camera over the LTE network, providing an unlimited range and low latency video+data link.


Digital Ultra High Definition Video

Sky Drone Link 4K supports HDMI camera input with  UHD 4k / 2160p.

4K Ultra HD


Gimbal Control / Flight Controller Link

Besides the video link, Sky Drone Link 4K provides a bidirectional data link between your drone and your Ground Control Station. This can be used to visualized telemetry data and/or control the drone. We support the MAVLink protocol as well as any generic protocol that interfaces via RS232/UART. Many gimbals can be controlled over a serial RS232/UART interface and Sky Drone Link 4K can act as a virtual serial cable. This functionality is entirely optional.

Unlimited Range

By using existing cellular networks, the Sky Drone Link 4K system provides you with virtually unlimited range. The only requirement is cell tower coverage. The system is optimized for the 4G/LTE network to provide best video quality and lowest latency. It does however fall back to 3G or even 2.5G networks by automatically adjusting video parameters without interrupting the stream.


Low latency

By using our own highly optimized video processing pipeline, the system is designed for lowest latency video from scratch. The typical end-to-end latency is less than 350ms depending on the camera used.


Groundstation Software

The Groundstation to receive Video from the Sky Drone Link 4K unit runs on Windows and Linux with version for MacOS, Android and iOS in the pipeline to be released in Q1 2019.


The video stream, command&control channel and meta data are fully end-to-end encrypted making it impossible for third parties to eavesdrop the transmission or interfere with it. Rather than reinventing the wheel, we rely on open and proven standards including Datagram Transport Layer Security (DTLS) and Secure Real-Time Protocol (SRTP) using AES128.

How it works

Video only:


Video & Gimbal- or Flightcontroller Link:

Note: Gimbal Control Software not included, as it depends on the specific gimbal system.


Technical Specification


385g incl. cases, cable (if required it can be reduced to ~135g by removing casings)

Power Input:

5V (micro-USB, min. 1A); 12V (min. 1.5A)

Supported HDMI Inputs Formats:

3840x2160@30p, 1920x1080@60p, 1920x1080/50p,1920x108060i, 1920x1080/50i,  1920x1080/30p, 1920x1080/30i, 1280x720@60p, 1280x720@/50p, 1280x720@/30p, 720x576i, 720x480i


Internal antenna + external antenna socket (optional)

Typical End-to-End Latency:


Typical Data Consumption on 4G/LTE:

10 minutes of streaming consumes:
UHD / 4K at 12mbit/s: 900MB
Full HD at 6mbit/s: 450MB
HD at 2mbit/s: 150MB
Low quality at 50kbit/s: <4MB

Cellular Network Compatibility:

see Sky Drone Modem Options


Compatibility and Requirements

UAV / Drone

Video transmission only:
Any UAV / drone that can carry the module weight (428g in-cases or 190g without cases).

Gimbal Control / Flight Controller Link (optional):
A gimbal controller or flight controller that uses a RS232/UART based interface.

Groundstation Software

Minimum: Intel i5, 8 GB RAM
Recommended: Intel i7, 8 GB RAM, dedicated graphics card.

Operating System: Windows 7/8/10

Android: to be confirmed
iOS: to be confirmed


Component Overview

Sky Drone Link 4K is an out-of-the-box solution, which comes with several modular parts.

What's In The Box

  • Sky Drone Link 4K Core Processing Unit
  • HDMI Input Module
  • Firmware Module
  • Identity Module
  • Telemetry Connector
  • 4G/LTE Modem (Europe/Asia or US/Canada/Americas)
  • CE/FCC Certification Card with Manual

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