skomplekt LKV488Mini 4K 60Hz HDMI Wireless Extender User Manual
- June 13, 2024
- skomplekt
Table of Contents
LKV488Mini 4K 60Hz HDMI Wireless Extender
User Manual
4K 60Hz HDMI Wireless Extender
Important Safety Instructions
- Do not expose this device to rain or place it near water. Any liquid that goes into the device may cause a failure, fire, or electric shock.
- Never insert anything metallic into the open parts of this device. This may cause a danger of electric shock.
- The device should be repaired only by a qualified technician.
- Do not place this device near or over a radiator or heat register, or where it is exposed to direct sunlight.
Introduction
This is a 4K@60Hz HDMI wireless extender, including a transmitter and a receiver. Adopting piccolo STREAM technology can realize high definition and low-latency transmission. Based on the 5G wireless frequency band, with stable anti-interference and safety performance. It supports 1-to-1 wireless transmission, and the transmission distance can reach 20 meters, effectively solving problems caused by complicated wiring. It’s an ideal wireless video transmission solution for video conferences, home entertainment, multimedia education, etc.
Note：
- Transmission distances may vary depending on the environment.
- Signals may be reduced or completely lost by solid structures such as walls, bricks, and glass.
- The surrounding wireless signal may cause certain interference to the transmission, and the channel can be switched to reduce the interference.
Features
- Adopting piccolo STREAM technology can realize high definition and low-latency transmission.
- Support up to 3840×2160@60Hz resolution, backward compatible.
- Support wireless transmission up to 20 meters (line of sight).
- In case of multiple sets of products in the same area, support SSID pairing and channel switching to avoid interference.
- Support 5G wireless frequency bands, strong anti-interference.
- Support firmware upgrade via Micro USB port.
- Portable design, plug and play.
Package Contents
Installation Requirements
- HDMI source device (DVD, game console, PC, etc.)
- HDMI display device (TV, projector, LED screen, etc.)
Panel Description
Transmitter (TX)
| ① | HDMI input | Connect with HDMI source device |
|---|---|---|
| ② | WiFi indicator | a) Slow flash: waiting for connection |
b) Steady on: connection succeeded
c) Quick flash: SSID Pairing mode
③| Power indicator| The indicator will turn red when the power is turned on
④| Channel switch button| a) press to switch channels
b) Press and hold 5s for SSID pairing
c) Press and hold 10s for restore factory settings
⑤| Signal indicator| a) Light off: no HDMI signal
b) Steady on: HDMI signal is transmitting
c) Quick flash: restore factory settings
⑥| Micro USB port| For power input and firmware upgrade
Receiver (RX)
| ① | HDMI output | Connect with HDMI display device |
|---|---|---|
| ② | WiFi indicator | a) Slow flash: waiting for connection |
b) Steady on: connection succeeded
c) Quick flash: SSID Pairing mode
③| Power indicator| The indicator will turn red when the power is turned on
④| Channel switch button| a) After connecting with TX, press to switch
channels
b) Press and hold 5s for SSID pairing
|c) Press and hold 10s for restore factory settings
⑤| Signal indicator| a) Light off: no HDMI signal
b) Steady on: HDMI signal is transmitting
c) Quick flash: restore factory settings
⑥| Micro USB port| For power input and firmware upgrade
Installation Procedures
-
Connection Diagrams
One to one connection
-
Connection Instructions
a) Connect the transmitter to the HDMI output port of the signal source device.
b) Connect the receiver to the HDMI input port of the display device.
c) Plug the power supply into the devices to get started.
Note: Please connect the Micro USB cable to the 5V 1A wall charger when transmitting 4K video, for long-distance use or when the picture is not smooth. -
SSID Pairing
1. Enter the SSID pairing mode by holding the transmitter and receiver’s channel switch buttons for five seconds. Both WiFi connection indicators will flash quickly in blue.
2. When the SSID pairing is successful, the WiFi indicators on the transmitter and receiver will change from quick flashing to slow flashing or steady on.
| NO. | Frequency |
|---|---|
| Channel 1 | 5.180 GHz |
| Channel 2 | 5.200 GHz |
| Channel 3 | 5.220 GHz |
| Channel 4 | 5.240 GHz |
FAQ
A: 1) Move transmitter and receiver closer. 2) Re-power the transmitter or receiver. 3) Re-pair the transmitter and receiver.
A: 1) Move transmitter and receiver closer. 2) Re-power the transmitter or receiver. 3) Re-pair the transmitter and receiver.
A: 1) Make sure the TX has HDMI input and that the resolution is within the specified range. 2) Try to connect the signal source directly to the display device, or change the signal source and HDMI cable and test again.
Q: Why is the display stuttering or unstable?
A: 1) Place the transmitter or receiver within the signal coverage and minimize obstructions between the transmitter and receiver. 2) Switch to a different channel to avoid interference from other wireless signals. 3) Re- power the receiver or transmitter.
Specification
| Items | Specifications |
|---|---|
| Power Supply | Voltage/Current |
| Power consumption | TX < 4.5W, RX < 3.5W |
HDMI
Performance and Interface
| HDMI version| HDMI 2.0
HDCP version| HDCP 1.4/HDCP 2.2
Max transmission rate| 18Gbps
Resolution supported| 3840×2160@24/30/50/60Hz (YUV 4:4:4, YUV 4:2:2 and
RGB),1080P@50/60Hz, 720P@50/60Hz, 1920×1200@60Hz
Input and output TMDS signal| 0.7~1.2Vp-p（TMDS）
Input and output DDC signal| 5Vp-p（TTL）
Transmission
| Wi-Fi Frequency bands| 5.18-5.24 GHz
Transmission distance| ≤ 20m
Transmission
| Latency| 100~250ms
---|---|---
Connection types| One to one
SSID pairing| Supported
Protection Level| ESD protection| 1a Contact discharge level 3 1b Air
discharge level 3 Standard: IEC61000-4-2
Operating Environment| Working temperature| -20~50℃
Storage temperature| -30~70℃
Humidity (no condensation)| 0~90% RH
Physical Properties| Dimension| TX: 40.2(W) 230(L) 15.0(H)mm
RX: 40.2(W) 230(L) 15.0(H)mm
Color| Black
Material| ABS
Net weight| TX: 58g; RX: 54g
Disclaimer
The product name and brand name may be registered trademark of related
manufacturers. ™ and ® may be omitted on the user manual. The pictures on the
user manual are just for reference, The terms HDMI, HDMI High-Definition
Multimedia Interface, and the HDMI Logo are trademarks or registered
trademarks of HDMI Licensing Administrator, Inc.
We reserve the rights to make changes without further notice to a product or
system described herein to improve reliability, function or design.