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HomeCreative IdeasWalksnail Avatar VRX: HDMI digital FPV receiver

Walksnail Avatar VRX: HDMI digital FPV receiver

Walksnail Avatar VRX

Undoubtedly, probably the most costly elements of an HD digital system is the FPV goggles, and right here comes serving to the Walksnail Avatar VRX. Because of its HDMI out can be utilized together with your current analog or digital FPV headset with HDMI in. Should you prefer to fly on a giant display, you need to use your 60″ LCD TV and invite your pals to affix the enjoyable and serve some popcorn.

VRX stands for Video Receiver or Video Receiver Module. Within the context of FPV (First-Particular person View) programs, a VRX is a tool that receives the video sign transmitted from an FPV digicam via a VTX (video transmitter) and shows it on FPV goggles or monitor.

An exterior VRX module is usually outfitted with one or a number of antennas to seize the transmitted sign and a receiver module that processes and demodulates the sign. It then outputs the video sign, which might be linked to an FPV monitor or goggles for real-time viewing. Moreover the legacy 5.8 GHz analog programs, at present, there are three digital FPV programs: DJI HD Digital, Walksnail Avatar, and HDzero.

Big screen FPV

The Avatar VRX is meant for these keen to step into Walksnail at a minimal value. Whether or not you come from the 5.8G analog world or DJI HD digital ecosystem, utilizing your current FPV goggles with an HDMI enter, you’ll be able to fly an FPV drone outfitted with any Walksnail AVATAR HD VTX system. Caddx understood that not everybody needs to spend $600 on a second pair of FPV goggles to check their expertise. The Walksnail VRX module can also be a superb choice for individuals who favor to fly utilizing massive screens as a substitute of FPV headsets.

Walksnail Avatar HD VRX evaluate

Disclosure: I acquired this Avatar VRX as a part of a product evaluate collaboration with CaddxFPV. Technical specs and high quality might differ in accordance with the producer’s reliability, so I can’t assure that you’ll get an an identical product, as seen in my article.

Final month, to have the ability to check and evaluate the Avatar HD Professional equipment, Caddx additionally despatched me this VRX unit. Within the field beside the Walksnail vRX module are a Y energy splitter (DC5521), HDMI cable, and mounting equipment and instruments.


The module measures 114*55*22mm and weighs roughly 80 grams. It has two built-in antennas (7.6dBi) and two exterior ones (1.9dBi). It may be connected to your FPV monitor or FPV goggles utilizing the built-in 3mm GoPro mounting bracket, or the included double-sided tape. A regular 5.1mm energy connector and micro SD slot are on the precise. On the highest, close to the tiny joystick, is the bind (pairing) button. The HDMI-out port is on the backside of the unit.

HDMI out

That includes a variety of enter voltage, you’ll be able to energy it from 7 to 25.2 volts (2S-6S). Utilizing a CNHL 4s 3200 Li-ION pack provides me nearly infinite operation time. The VRX can intelligently establish the voltage of two, 3, 4, and 6s LiPo batteries. A low battery alarm can be triggered when the cell voltage drops beneath 3.5 volts.

10" FPV Ground station

Walksnail VRX: Controls

The VRX module has solely two buttons and a tiny joystick for straightforward operation and navigation between varied menus. The “Play” button lets you begin/cease video recording, and the “Again” button to return to the earlier menu or exit the present mode. 720p@60fps mode might be activated By lengthy urgent (5 seconds) the Again-key.


OSD & Predominant interface

The Avatar VRX includes a detailed OSD that features VTX and RVX battery voltage, transmission video bitrate, latency, channel, and even an estimated flight distance. Recording standing and remaining cupboard space (vTX and vRX) are displayed within the up-right nook.

OSD menu

The primary interface has 4 tabs:

  • Channel – You’ll be able to manually set the specified transmission channel or activate the “Auto” swap. Sign energy is displayed for every CH. Whereas FCC mode has 8CH, CE/SRRC mode has solely 4CH.
  • Share – This part is underneath creating
  • Settings
    • Transmit Energy – The default transmit energy might be toggled between 25mW, 200mW, 500mW, and 700mW. In FCC mode, 1200mW might be set.
    • Decision – You’ll be able to select 720P and 1080P. When 1080P is chosen, the excessive body fee mode can’t be chosen.
    • Digital camera – You’ll be able to alter EV worth, saturation, sharpness, white steadiness, rotation, and ratio settings.
    • Show – You’ll be able to customise zoom impact, brightness, focalization mode, customized OSD, OSD place, font improve, customized font, viewfinder, and viewfinder edit settings.
    • Report – VTX file decision, REC machine, Take-off REC, REC loop, SD card, and VTX.
    • Machine – Buzzer quantity, ranging mode, weak sign, reset all, machine data, and directions.
  • Playback – Lets you evaluate your movies.

Pricing, availability, and choices

The Avatar VRX might be ordered from Caddx with a beginning worth of $209. Moreover the fundamental equipment, there are seven combo kits with varied VTX choices. The Walksnail VRX and Avatar HD Professional bundle is priced at $309.

Technical parameters

Monitor compatibility LCD screens and FPV goggles with HDMI in
HDMI Output 1080p60fps, 720p100fps, or 720p60fps
Digital VTX compatibility Avatar HD and Avatar HD V2
Communication Frequency 5.725-5.850GHz
Transmitter Energy (EIRP) FCC:<30dBm;CE:<14dBm;SRRC:<20dBm;MIC:<25dBm
Variety of antennas 2x built-in + 2x exterior
Micro SD card as much as 256GB
DC Energy enter 7-25.2V (2S-6S)
Dimensions 114x55x22mm
Weight 83 grams

Can I take advantage of it with DJI FPV Goggles V2?

Because the DJI Goggles V2 doesn’t have an HDMI enter, it can’t be used immediately with the Walksnail VRX module. You should use an exterior HDMI to AV converter, dramatically lowering the video high quality and including important latency. As an alternative, the newer Goggles 2 and Integra are totally suitable and supply a superb person expertise.

Walksnail AVATAR VRX FPV headset compatibility checklist:
  • HDZero Goggles
  • Headplay HD (1280×800) and SE (1024×600)
  • Fats Shark HDO2, Perspective V6, and Recon HD Field
  • SKYZONE SKY02O, Cobra, Sky04X, and Sky 04L v2
  • Orqa FPV.ONE Pilot
  • DJI Goggles 2 / Integra

Please let me know by commenting beneath if there are different FPV goggles I haven’t talked about.

Walksnail VRX pairing with Avatar HD Pro VTX

Find out how to pair the Walksnail VRX together with your drone?

The Walksnail VRX is suitable with all AVATAR VTXs and might be paired following the steps beneath:

  • Energy on the drone and the VRX.
  • Press the hyperlink (bind) button of the drone’s VTX and RVX module. The indicator gentle turns crimson, and the VRX finish is a DI… Dl… DI…
  • After the hyperlink is profitable, the indicator gentle on the VTX turns stable inexperienced,
    the beeping sound on the VRX stops, and the display is displayed.

Avatar HD VRX: Firmware improve process

The most recent Walksnail VRX firmware might be downloaded from right here. The zip file accommodates recordsdata for all AVATAR {hardware} -use “AvatarSE_Gnd_X.X.X.img” for the VRX module.

  1. Copy the improve file to the basis listing of the SD card, hook up with the ability provide, and look ahead to the machine to initialize (delete the previous firmware file first if there’s one).
  2. Press and maintain the hyperlink button on the VRX for 8 seconds, and the goggles robotically restart and emit a beep…beep…beeper sound. (Don’t energy off in the course of the improve course of, the improve time on the goggle is about 6 minutes).
  3. After the improve is profitable, and the beeping sound stops after the VRX beeps for five seconds.


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