RunCam WiFiLink-RX User Manual
User Manual-Ruby System V1.1
I. Product Overview
The RunCam WiFiLink-RX is a digital HD receiver designed for FPV systems. It supports both Ruby FPV and OpenIPC firmware.
Key components and ports:
- 1. 5-way button: Used for menu navigation and selection.
- 2. LED: Status indicator light.
- 3. Detachable mount: For securing the device.
- 4. Record button: Initiates or pauses video recording.
- 5. 1/4" threaded hole: Standard mounting point.
- 6. OTG: USB On-The-Go port for connecting external storage or peripherals.
- 7. Type-C: USB Type-C port for power and data connection.
- 8. Flash button: Used for entering firmware flashing mode.
- 9. Mini-HDMI: For high-definition video output.
- 10. SMA (inner pin): Connector for attaching antennas.
- 11. UART expansion: Interface for serial communication.
- 12. Micro-SD slot: Supports external memory cards.
- 13. DC power input: Accepts power input ranging from 9V to 30V (compatible with 3S-6S LiPo batteries).
- 14. I2C expansion: Interface for I2C communication.
II. Firmware Support
The WiFiLink-RX supports two primary operating systems: Ruby FPV and OpenIPC. The default factory firmware is OpenIPC.
The device provides interfaces for both systems, allowing users to select their preferred operating environment for FPV video transmission and control.
III. WiFiLink-RX Specifications
WiFiLink-RX
| Feature | Specification |
|---|---|
| Frequencies | 5GHz |
| Transmission Power | <25dBm(FCC), <14dBm(CE), <20dBm(SRRC), <25dBm(MIC) |
| Interface | Mini-HDMI, Micro-SD, DC 5.5×2.1mm, Type-C |
| Mini-HDMI Output | 1080P 60fps / 720P 60fps |
| Power Input | 9~30V (3~6S) |
| MicroSD Card | Supports up to 256GB |
| Memory and Storage | 1GB RAM + 32GB eMMC |
| System | Ruby FPV / OpenIPC |
| Dimensions | (L)110.0mm×(W)27.3mm×(H)46.0mm |
| Weight | 122.0g (±1g) (antenna excluded) |
Stick Antennas
| Feature | Specification |
|---|---|
| Polarization | Vertical Polarization (VP) |
| Frequencies | 5150~5850 MHz |
| Average Gain | 2.5dBi |
| Standing Wave Ratio (SWR) | <=2.0 |
| Dimensions | (R)4.8mm×(H)108.4mm |
| Weight | 6.6g |
Pagoda Antennas
| Feature | Specification |
|---|---|
| Polarization | Left-Hand Circular Polarization (LHCP) |
| Frequencies | 5500~5900 MHz |
| Average Gain | 2.5dBi |
| Standing Wave Ratio (SWR) | <=2.0 |
| Dimensions | (R)8.0mm×(H)23.9mm |
| Weight | 4.4g |
IV. LED Status Indicators
The LED indicators provide information about the WiFiLink-RX's status:
- Green LED solid on: Wi-Fi is functioning normally.
- Green LED off: Wi-Fi malfunction.
- Red LED solid on: RX is powered.
- Red LED slow blinking: Recording in progress.
- Red LED fast blinking: Storage is full.
- Red and green LEDs blinking alternately: High temperature warning.
V. Button Functions
5-way Button
The 5-way button is used for navigation and control. Its functions vary slightly between the Ruby System and OpenIPC System:
- Ruby System: Push right to switch OSD interface. Press Down to confirm or open the menu. Push up or down to navigate, and Push left to return to the previous menu.
- OpenIPC System: Push up or down to change frequencies. Push right to adjust bandwidth (20MHz / 40MHz).
Note: Button functions are based on Ruby FPV V10.7 / OpenIPC V1.9.8. Behavior may differ in future firmware versions.
Record Button
Press the Record button to start or pause video recording.
Flash Button
To enter flashing mode: Press and hold the flash button, then connect DC power. After 2 seconds, release the button. The RX will enter flashing mode. Connect the RX to a computer via Type-C and begin the flashing process.
VI. Connecting to Air Unit
Follow these steps to connect the WiFiLink-RX to your air unit and display:
- Install antennas for both WiFiLink 2 and WiFiLink-RX. Power on both devices. Connect the WiFiLink-RX to a display via an HDMI cable.
- After powering on the devices, press down the 5-way button to open the menu. Navigate to and select "Search" → "Start Search". Press to confirm. The device will search for the transmitter signal.
- Once the search is complete, select "Connect for control" and confirm the connection.
- The video feed from the transmitter will be displayed on your screen once the connection is successfully established.
VII. System Flashing
Note: Flashing the system will erase all files on the WiFiLink-RX's internal storage (eMMC) and TF card. Please back up important data in advance.
A. Obtaining the System Image file
- Go to the Ruby FPV official website's Download page: https://rubyfpv.com/downloads.php.
- Scroll down to find the latest system image files. Select the appropriate image file for your RunCam VRx and click to download.
- Ensure the system version of the WiFiLink-RX matches the version on the air unit; otherwise, connection issues may occur.
- Extract the downloaded compressed file to obtain a system image file (e.g., `.img` or `.zip`).
B. Flashing Software
- Download the compressed Driver&Tool file from the provided link: GoogleDrive Link.
- Extract the downloaded compressed file to obtain the flashing software and driver files.
C. Installing Driver
- Open the `DriverAssistant_v5.0` folder.
- Find and double-click `DriverInstall.exe` to execute the driver installation.
- Click "Install" to continue. The installation takes a few seconds to complete.
D. Flashing System Image File
- Open the `RKDevTool_Release_v2.96` folder and locate the `RKDevTool.exe` file. Double-click to run it.
- When the WiFiLink-RX is not yet connected to the computer, the RKDevTool will display “No devices found” in the lower-left corner.
- Ensure the WiFiLink-RX is properly connected to the antenna and that the TF card is removed (to prevent data loss).
- Use a SIM eject tool or a small screwdriver to press and hold the flash button, then connect DC power. Wait for 2 seconds, then release the button.
- Connect the WiFiLink-RX to the computer via a Type-C data cable.
- If the previous steps were completed correctly, the WiFiLink-RX will enter flashing mode. The flashing tool will display "One MASKROM device found" on the interface.
- In the RKDevTool interface, click the area next to "Loader" to select the loader file (e.g., `rk356x_spl_loader_ddr1056_v1.10.111.bin`).
- Click the area next to "Image" to select the system image file (e.g., `radxa_1-9-7_mdns_wifilink_rx_250311.img`).
- Ensure the "Write by address" option is ticked.
- Click the "Run" button to start flashing the firmware for the WiFiLink RX.
- The tool will display the flashing progress. The process typically takes about two minutes to finish. A "Download image OK" message indicates successful flashing.
VIII. Frequently Asked Questions
A. Adjusting WiFiLink-RX Frequency and Air Unit Power
- Press down on the 5-Way Button to open the menu, then select "Quick Vehicle Setup" to enter the quick setup menu.
- Select "Radio Link Frequency" to adjust the frequency channel.
- Select "Radio Link Tx Power" to adjust the air unit's transmission power.
- Select "FC Telemetry Type" to change the telemetry protocol (default is MAVLink).
B. Adjusting Air Unit Video Output via WiFiLink-RX
- Press down on the 5-Way Button to open the menu bar, then select "Vehicles Settings" → "Video" to enter the video settings.
- Select "Video Profile" to adjust the video quality (e.g., High Quality, High Performance).
- Select "Video Codec" to adjust the video format (H.264 is recommended).
- Select "Resolution" to adjust the video resolution. Resolutions exceeding 1080P may affect frame rate and cause system lag.
- Select "FPS" to adjust the video frame rate.
- Select "Video Bitrate" to adjust the video bitrate (6 Mbps is sufficient for most scenarios).
C. Setting HDMI Video Output on WiFiLink-RX
- Press down on the 5-Way Button to open the menu bar, then select "Controller Settings" → "Audio & Video Output" to enter the settings.
- Select "HDMI Output Resolution" to adjust the output resolution.
- Select "HDMI Refresh Rate" to adjust the output frame rate.
D. Exporting Internal Storage Video from WiFiLink-RX
- Power on the WiFiLink-RX with the antenna properly connected.
- After the device starts up, insert a USB drive into the OTG port on the WiFiLink-RX.
- Press down on the 5-Way Button to open the menu, then select "Media & Storage" → "Move media files to USB memory stick".
- After pressing "Confirm", the video files from the internal storage will be moved one by one to the root directory of the USB drive.
- Once the transfer is complete, a message will indicate that it is safe to remove the USB memory stick.
IX. Notes and Precautions
- Before powering on, please ensure all antennas are properly installed to avoid damage to components.
- Please confirm that the display supports the set resolution and frame rate; otherwise, it may cause display issues.
- If using with other 5.8G devices, please select a different frequency channel to avoid interference.
- If you experience choppy video, it may be due to interference from other 5.8G devices. Try switching to a different frequency channel to resolve this issue.
- Before using this product, please ensure you fully understand and comply with local laws and regulations.
