1. Introduction
The VIKEFON Wireless HDMI Transmitter and Receiver system provides a convenient solution for wirelessly extending HDMI video and audio signals up to 100 meters in open spaces. Designed for plug-and-play operation, it eliminates the need for complex wiring and software installations. This system supports high-definition video at 1080P 60Hz and operates on the 5.8G band, ensuring clear and stable transmission with ultra-low latency. It is ideal for various applications including video conferencing, home entertainment, online learning, business presentations, and gaming.
2. Package Contents
Please check the box for the following items:
- Wireless Transmitter Unit - 1 PC
- Wireless Receiver Unit - 1 PC
- Type-C Charging Cable - 2 PCS
- User Manual - 1 PC
3. Specifications
| Feature | Specification |
|---|---|
| Product Name | Wireless Display Adapter |
| Resolution | 1080P 60Hz |
| Power Supply | 5V/2A |
| Wireless Band | 5.8G (802.11 5GHz) |
| Shell Material | ABS |
| Transmission Distance (Outdoor) | Up to 100 meters (open space) |
| Transmission Distance (Indoor) | Around 30 meters (without barriers) |
| Modes Supported | Mirror and Extended modes |
| Multi-Device Support | Up to 8 Transmitters (TX) to 1 Receiver (RX) |
| Latency | Ultra Low (real time) |
4. Setup Guide
Follow these steps to set up your wireless HDMI system:
4.1. Connecting the Receiver (RX)
- Connect the HDMI port of the Receiver (labeled 'TV Receiver') to an available HDMI input on your display device (e.g., TV, projector, monitor).
- Connect one end of the provided Type-C to USB charging cable to the USB-C port on the Receiver. Connect the other end (USB-A) to a USB port on your display device or a 5V/2A USB power adapter. This powers the Receiver.
- Once powered, the light on the Receiver will turn on.
Figure 1: HDMI Interface Compatibility for TX and RX
Figure 2: Independent Power Supply for Stable Transmission
4.2. Connecting the Transmitter (TX)
- Connect the HDMI port of the Transmitter (labeled 'PC Transmitter') to an available HDMI output on your source device (e.g., laptop, PC, set-top box, gaming console, camera).
- Connect the second Type-C to USB charging cable to the USB-C port on the Transmitter. Connect the other end (USB-A) to a USB port on your source device or a 5V/2A USB power adapter. This powers the Transmitter.
- The blue light on the Transmitter will blink first, then become steady.
Figure 3: VIKEFON Wireless HDMI Transmitter and Receiver Units
Figure 4: Built-in Antenna Design for Quick Screen Projection
Video 1: Demonstration of connecting the wireless HDMI extender to a laptop and TV, showing screen mirroring.
After both units are connected and powered, the display device should automatically show the mirrored or extended screen from your source device within a few seconds.
Note on Power Supply:
- Under normal circumstances, the Transmitter does not require an external power supply if the HDMI port of the signal source provides sufficient power.
- If the image cannot be transmitted normally or if the signal is unstable (possibly due to insufficient power from the HDMI port), it is necessary to connect the external 5V/2A power supply to the Type-C port on the Transmitter. Always plug in the external power supply first, then connect the HDMI.
5. Pairing Instructions
The devices are pre-paired at the factory. You typically do not need to re-pair them. However, if you encounter connection issues or are setting up multiple transmitters, follow these steps:
5.1. One-to-One Pairing Method
This method is used to pair a single Transmitter with a single Receiver.
- Receiver (RX) Side:
a. Ensure the Receiver is connected to your display and powered on.
b. Long press the reset/pairing button on the HDMI side of the Receiver for approximately 2 seconds. Release the button immediately when the screen displays "Release the button to pair with Mate". - Transmitter (TX) Side:
a. Ensure the Transmitter is connected to your source device and powered on.
b. Wait for the screen to display "Ready to pair".
c. Long press the reset/pairing button on the HDMI side of the Transmitter for approximately 5 seconds. Release the button when the signal light goes off. The screen will then show a "v" to indicate successful pairing.
5.2. Many-to-One Pairing Method (Up to 8 TXs to 1 RX)
This system supports connecting up to 8 Transmitters to a single Receiver. To pair multiple Transmitters:
- First, pair the initial Transmitter with the Receiver using the "One-to-One Pairing Method" described above.
- After successful pairing of the first Transmitter, repeat the "One-to-One Pairing Method" for each additional Transmitter you wish to connect to the same Receiver. Pair them one by one.
- Once each Transmitter is successfully paired with the Receiver, the pairing process is complete.
Figure 5: Many-to-One Mode Setup
6. Operation
6.1. Basic Usage (One-to-One)
Once the Transmitter and Receiver are connected and paired, your source device's screen will be mirrored or extended to the display device. You can switch between mirror and extended modes through your computer's display settings.
6.2. Switching Between Multiple Transmitters (Many-to-One)
If you have multiple Transmitters paired with a single Receiver, you can switch the displayed source as follows:
- Identify the Transmitter currently being displayed on the screen.
- Press the reset/pairing button on the currently active Transmitter. The display screen will show a "pairing tick screen" or similar indicator.
- Then, press the reset/pairing button on the desired Transmitter you wish to switch to. The display will then switch to show the content from the newly selected Transmitter.
- Repeat this process to switch between any of the paired Transmitters.
Figure 6: Audio and Video Synchronous Transmission
7. User Tips
- Power Supply: Always ensure both the Transmitter and Receiver receive adequate power (5V/2A). If your source device's HDMI port doesn't provide enough power, use an external USB power adapter for the Transmitter.
- Optimal Performance: For the best signal quality and range, minimize physical obstructions (walls, furniture) between the Transmitter and Receiver. The system is not designed for through-wall transmission.
- Re-pairing: If you experience connection drops or the devices fail to connect, try re-pairing them using the instructions in Section 5.1.
- Operating Temperature: The device's operating temperature can reach approximately 50 degrees Celsius, which is considered normal and does not affect its functionality.
8. Troubleshooting
- No Signal/Black Screen:
a. Ensure both Transmitter and Receiver are properly connected to their respective HDMI ports and are receiving sufficient power.
b. Check that the power indicator lights on both units are on.
c. Verify that the input source on your display device is set to the correct HDMI port where the Receiver is connected.
d. Try re-pairing the Transmitter and Receiver as described in Section 5.1. - Unstable Image/Flickering:
a. Ensure the Transmitter is receiving adequate power. If not, connect an external 5V/2A USB power adapter.
b. Reduce the distance between the Transmitter and Receiver.
c. Remove any major obstructions between the units.
d. Check for potential interference from other 5.8Ghz wireless devices. - Cannot Switch Between Multiple Transmitters:
a. Ensure all Transmitters are correctly paired with the Receiver.
b. Follow the switching procedure carefully: press the button on the currently active TX, then on the desired TX. - Receiver Light is Off:
a. Check the USB power connection to the Receiver. Ensure it is securely plugged in and receiving power. - Factory Reset Receiver:
a. If persistent issues occur with the Receiver, you can perform a factory reset by long-pressing the reset/pairing button on the Receiver for 10 seconds. Note that this will unpair all Transmitters, and you will need to re-pair them.
9. Safety Information
- Do not expose the device to water, moisture, or extreme temperatures.
- Avoid dropping or subjecting the device to severe impact.
- Do not attempt to disassemble or repair the device yourself. Refer to qualified service personnel.
- Use only the provided charging cables or compatible 5V/2A power adapters.
- Keep the device away from strong electromagnetic fields.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided with your purchase or contact the seller directly. Keep your proof of purchase for any warranty claims.
