Artosyn & KAP ArtLynk Digital FPV Systems

ArtLynk is a range of digital FPV systems sold by brands such as Skyzone, BetaFPV, HGLRC and others.

These system are developed using Artosyn’s AR803X RF solution and are supported by KAP -Shanghai Kuopu Intelligent Technology Co Ltd.

Artosyn Artlink KAP

Products in the ArtLynk ecosystem include

  • BetaFPV ArtLynk P1 & VR01
  • HGLRC Draco
  • Skyzone SteadyDigital
  • TJRC

There are also other digital fpv systems using the Artosyn AR803X asic that are not part of the ArtLynk ecosystem ,these include

  • StartRC VT5
  • Caddx Ascent
  • **HawkEye Digital”” – Not Confirmed but suspected

Products such as the StartRC VT5 are using the same reference design as ArtLynk that we believe is from KAP. However, others like Caddx Ascent are independently developed by Caddx FPV using their own hardware and firmware designs even for the RF and is not part of or compatible with the ArtLynk system.

Artosyn ARLink AR803X RF Solution 

Artosyn known as Hefei Coolchip Microelectronics Co., Ltd. or Hefei Kuxin Microelectronics Co., Ltd  is a fabless semiconductor company established in July 2011, founded by three graduates from Fudan University’s Department of Electronic Engineering, including co-founder and CTO Shen Bo, and chairman/CEO Yao Haiping. It was originally founded as Shanghai Kuxin Microelectronics Co., Ltd. before officially changing its name to Hefei Kuxin Microelectronics Co., Ltd. and relocating its headquarters to Hefei. 

The company is a RF and visual processing AI System-on-Chip (SoC) designer and their technology has been used in products such as DJI Lightbridge, Caddx Avatar HD and other Drone and security systems. 

The Artosyn AR803X is their latest  System-on-Chip (SoC) designed for digital video transmission. The AR803X contains a RISC-V 400MHz CPU, video encoder, and RF transceiver. Supports a frequency range of 150MHz to 7GHz, data rates up to 160Mbps, and a theoretical range of up to 15km.

Unlike the Artosyn AR9201 used in the Caddx Walksnail Avatar HD system the the AR803x is not an full system on a chip with SDR, Instead its a fixed function asic that needs to be paired to an external microcontroller and flash memory to handle the OS,video encoding and IO. 

The Artosyn AR803X series has been found in many products such as the Potensic Atom 2, Antigravity A1 as well as these new ArtLynk and Ascent FPV systems. 

More info on Artosyn can be found Here https://fpvwiki.co.uk/the-digital-fpv-revolution-dji-artosyn-leadcore

ArtLynk Supported By KAP

KAP -Shanghai Kuopu Intelligent Technology Co Ltd we believe is a new company supplying solutions to FPV companies. Its believed they were founded in 2024 they appear to be the driving force behind the ArtLynk system providing ‘support’ to brands selling ArtLynk compatible digital FPV systems.

We believe KAP is a partner of Artosyn and are likely designing the core hardware, firmware and are the controlling force behind these new system.

Compatible ArtLynk systems sold by BetaFPV, HGLRC, Skyzone and others are all based on the same VTX and receiver module designs. We believe this is a form of white labeling or reference design that are all provided by KAP all based around Artosyn’s SOC and RF solutions.

All systems that are listed as KAP supported appear to all use the same reference receiver and VTX designs as shown below.

KAP ArtLynk Receiver Module
BetaFPV P1 – KAP ArtLynk VTX Design

For Goggles & VRX, while each vendor’s able to use their own external and main PCB design they all use the same internal receive module that is soldered directly to the PCB.  This module has the Artosyn Proxima 9311 main SOC handling the OS, video processing and IO coupled to the Artosyn AR903X RF solution handling baseband and mux with PA and dual antenna ports. 

All VTX’s use the same PCB layout consisting of a main SOC that is the Artosyn Proxima 9311 , the Artosyn AR803X RF solution, flash chip and a dual PA and antenna setup. Depending on the vendor the choice of PA and antenna output will vary with BetaFPV P1 having a single low power PA limited to 100mw. Compared to the HGLRC that uses higher power dual PA and dual antennas. 

All versions we have seen of the AR903X FPV system are only using up to 2 antennas at this time, there are other AR803X system using more antennas like the Antigravity A1 however its not clear if this is using antenna switching circuitry rather than the SOC having 4 lanes capability. 

Each vendor appeared to choose or be limited to specific hw configurations for their products with little overlap.

Open Digital & Compatibility

The first thing to understand is ArtLynk is NOT open, NOT open source and is entirely based around Artosyn’s proprietary technology . While some brands are calling this an open platform is as closed and proprietary as DJI, Caddx Avatar and HDZero. 

While there are multiple brands selling ArtLynk based products these are all derived from the same core IP and designs from Artosyn. 

More widely available from multiple brands does not make it open!!

Furthermore while there are a number of systems use the Artosyn AR803X rf solution this in its self does not mean they are all compatible. Caddx Ascent as an example uses the same chip but is not part of ArtLynk and is not compatible with anything except Caddx Ascent products. There are even products such as the StartRC VT5 that use the same reference VTX and VRX Module however are not part of the ArtLynk ecosystem and again are not compatible.

Systems branded as ArtLynk and Artosyn Inside & KAP Supported such as BetaFPV ArtLynk, HGLRC Draco and Skyzone SteadyDigital should be compatible with each other however this is dependant on firmware version. More info on this further in this document under each brand.

As Caddx Ascent it not compatible technical information is listed under the Caddx section of this Wiki, for more information on Caddx Ascent please click here.

Important Note: At the point of writting this this is very messy and only specific fw is compatible on each system.

BetaFPV ArtLynk – ArtLynk Compatible

The BetaFPV Artlynk system cosists of BetaFPV VR01/VR01Pro Goggles and the P1 Airunit.

There is no VRX module available from BetaFPV however the VR01 Pro Goggle does support HDMI via DP.

The BetaFPV ArtLynk products are compatible with other Artlynk system when using firmware version V2.0 onwards only.

BetaFPV VR01 and VR01 Pro FPV Goggles

  1. 1080P 4.5″ Display Glasses-Friendly FPV Goggles
  2. Built In MicroSD 1080P DVR – One-Button Recording
  3. Bitrate: Max 25Mbps
  4. P1 Air Unit Compatibility V1.0 FW, Artlynk Compatible V2.0 Firmware
  5. USBC HDMI DP Live Feed Output (VR04 HD Pro Only): Stream your flight view to external displays.
  6. Long-lasting Battery – Supports up to 3 hours (VR04 HD) or 4 hours (VR04 HD Pro)
  7. Bitrate: Max 25Mbps

The BetaFPV VR01 and VR01 Pro goggle is based around the KAP Supported Receiver module, this is solderdered to the main board inside the goggles. – More Images at the end of this Article.

BetaFPV VR01 Goggles

BetaFPV P1 Aiurunit

BetaFPV P1 Airunit

The P1 Airunit is based on the KAP reference design but only 1 PA and Antenna, 2nd left unpopulated. The VTX consists of the Artosyn XXX main SOC an the Artosyn AR803x RF solution and has a maximum RF power output of 100mw.

  • 20Bdm 100mw RF Power
  • Max bitrate 25Mbps – 20Mhz Carrier
  • Frequency 5.1-5.9 GHz
  • Video Transmission Latency Approx. 60ms
  • Live View Quality 1080p@60fps
  • Camera 1/2.9” CMOS Lens – Field of View (FOV): 170°
  • Supports MSP-DP/Canvas mode
  • Mounting Hole Size 25.5*25.5mm
  • Dimensions (LWH) Air Unit: 30 30 5.5mm – Camera: 141417mm
  • Air Unit (Camera included): Approx. 6.5g

Firmware Compatibility BetaFPV

ArtLynk features OTA firmware updated from the Goggles or VRX to the Airtunit, this brings some complexity when it comes to updating product from different manufacturers. Initial release of the BetaFPV Artlynk system was not compatible with any of the others however after the release of FW 2.0 it is.

However this process is messy as you cant update a BetaFPV Airtunit on V1 firmware with a HGLRC VRX, you would require the BetaFPV goggles to do it.

BetaFPV Say: to ensure seamless compatibility with third-party ArtLynk protocol equipments (such as HGLRC Draco), please verify that your BETAFPV devices are updated to firmware version V2.0.5 or later.
The air unit needs to be updated via the ground station. First make sure the ground station and air unit are on the same firmware version, then proceed to update the air unit. And firmware V2.0.5 is not compatible with any V1 versions (V1.0.36 / V1.0.44).

HGLRC Draco Digital FPV – ArtLynk Compatible

The HGLRC Draco digital FPV system is part of the ArtLynk ecosystem using the same overall reference design for VRX and VTX.

The HGLRC system consists of a VRX module and a VTX module with two camera choices and supports other ArtLynk systems since FW 2.0

Draco VRX

  • VRX Module HDMI Output 1080P 60fps.
  • 33dbm 2W RF Output
  • 25Mbps Max Bitrate 20Mhz Carrier
  • 8-36v Power Input
  • DVR SD Card 1080P

Draco A1 & A2 Aitunit – VTX & Camera

Both HGLRC Draco A1 and A2 Airunits are the same and its only the camera that differs.

  • Live View Quality 1080p@60fps
  • 33dbm 2W RF Output
  • Max bitrate 25Mbps – 20Mhz Carrier
  • Frequency 5.1-5.9 GHz
  • Video Transmission Latency Approx. 60ms
  • Supports MSP-DP/Canvas mode
  • 8-36v Power Input

HGLRC Draco Internal Pictures – See Bottom of Page

SkyZone SteadyDigital – ArtLynk Compatible

The Skyzone SteadyDigital FPV system is part of the ArtLynk ecosystem using the same overall reference design for VRX and VTX.

The SteadyDigital system cosists of a VRX module and a VTX module with 3 camera choices and supports other ArtLynk systems since FW 2.0

SteadyDigital 10 PRO 5.8G VRX Module 

  • ArtLynk Video Transmission
  • SystemDual‑Antenna Receiver
  • Supports HDMI Output
  • Supports Ground Station Recording
  • Communication Frequency: 5.340GHz – 5.917GHz wideband coverage
  • Communication Bandwidth: 5MHz Uplink
  • Storage Support: SD card slot, up to 1TB capacity for on-ground DVR recording
  • Type-C port for firmware upgrades
  • Power Input: 8V-30V wide voltage input, compatible with most FPV drone power systems
  • Physical Specs: 80.1g lightweight design, dimensions 104.4mm × 16.4mm × 59.1mm for easy installation

SteadyDigital Airunit VTX Modules and Camera


5.8G Dual-Antenna Transmitter (VTX): Features dual-antenna design for enhanced signal stability, reduced interference, and extended transmission range, paired with two 5.8G lollipop/mushroom antennas for reliable signal output.

High-Definition FPV Camera: Available in multiple variants (Alps 14mm, Basalt 20mm, Dune 20mm low-light) to suit different drone sizes and flight scenarios, with the Dune model optimized for exceptional low-light and night flight performance.

Main Air Unit Module: Equipped with a power port, Type-C port for configuration, link button for pairing, and VTX LED status indicator for real-time operation monitoring.

  • Live View Quality 1080p@60fps
  • Communication Frequency: 5.340GHz-5.917GHz
  • Communication bandwidth: 20Mhz
  • Transmitter Power(EIRP): MAX: 33dBm; FCC < 30dBm; CE < 14dBm;SRRC < 20dBm; MIC < 25dBm
  • Dual-Antenna Design: Ensures robust signal transmission, minimizing dropouts even in complex flight environments
  • Interface Support: UART (for flight controller connection), SBUS, USB Type-C for configuration
  • Overheat Protection: Automatic shutdown at approximately 110°C to prevent device damage
  • Input Voltage: 8V-30V wide voltage input, compatible with most FPV drone power systems
  • Power Consumption: ≥ 7.5W (e.g., 8V/0.91A)

Skyzone SteadyDigital ArtLynk Compatibility

Skyzone state the SteadyDigital is part of the ArtLynk Ecosystem

TJRC Digital FPV – ArtLynk Compatible

At this moment in time this system while part of the ArtLynk ecosystem is only avaiaible in China so far.

This system looks to have some very interesting additional features such as 4K, airside DVR but detail is limited.

Below is a video link that does share some more info,.

ArtLynk Compatibility

We do believe this system is part of ArtLynk Ecosystem. More Info Here

StartRC VT 5 – Not ArtLynk Compatible

STARTRC VT5 5.8G Dual-Antenna FPV Digital Video Transmission Kit. While based on the same deisgns as the KAP supported products above its not that we know compatible with the ArtLynk ecosystem at this time.

StartRC have also deisned to me directly this system is Artosyn based even though we have confirmed its using the AR803X the same as the ArtLynk system.


Spec

  • HDMI Output, Wide Compatibility, and Adjustable Frequency
  • High-Definition Video – True 1080P@60FPS with 16Mbps high bitrate for smooth, detailed FPV
  • 250mw RF Power
  • Long-Range Transmission – Up to 6km in open environments with high-gain dual antennas.
  • Compatibility – Fits mini/indoor racing drones, fixed-wing planes, RC boats, and cars.HDMI Output &
  • Easy Setup – Ground unit supports direct HDMI connection to FPV goggles, plug-and-play.Active
  • Cooling & Stable Performance – Built-in silent fan ensures continuous operation and prevents overheating.
  • Adjustable Frequency Channels – Quickly switch to clean channels to avoid interference and maintain stable video link.

Internal Images have confired the presents of the KAP Receive module, More Images at the end of this page.

StartRC VT5 Receiver PCB With KAP Module.

ArtLynk Digital FPV KAP Internal Images

BetaFPV ArtLynk VR01 FPV Goggles and P1 VTX

Teardown Video

HGLRC Draco FPV Internal Pictures – Special thanks to Enlightx

STARTRC VT5 5.8G Internal Pictures – Special thanks to Enlightx