COFDM Diversity 2 RF Antenna wireless video receiver
Table of Contents
Overview
The VCAN2131 is a compact and high-performance COFDM wireless diversity receiver designed for professional real-time HD video transmission applications. Supporting H.264/H.265 video decoding, the receiver delivers stable and low-latency wireless video reception even in non-line-of-sight (NLOS) environments and high-speed mobile conditions.
Equipped with dual-antenna diversity reception technology, the VCAN2131 significantly improves signal stability, anti-interference capability, and transmission range. It supports HDMI, CVBS, and USB video outputs, making it suitable for various monitoring and display systems.
The receiver also features integrated DVR recording via Micro SD card or USB storage, along with USB video streaming capability for Android smartphones and tablets. When paired with a compatible COFDM transmitter, the VCAN2131 provides a rapidly deployable wireless video solution for UAVs, robotics, surveillance, tactical operations, and mobile broadcasting applications.
Features
- COFDM (DVB-T) wireless diversity receiver
- H.264 / H.265 video decoding
- Full HD 1080P@60fps video output
- Optional 4K UHD 3840×2160P@30fps support
- Dual SMA antenna diversity reception for enhanced stability
- HDMI, CVBS, and USB video outputs
- AES256 encryption/decryption support
- DVR recording to Micro SD card or USB disk
- USB video streaming for Android phones and tablets
- Excellent performance in NLOS and high-speed movement scenarios
- Adjustable operating frequency and bandwidth
- Compact, lightweight, and low power consumption design
- Fast automatic signal detection and lock
- OSD display with real-time RF and transmission status
- UART interface for external configuration and control
Specifications
I/O Interfaces
| Interface | Description |
|---|---|
| HD Video Output | HDMI Type-A Connector |
| Composite Video Output | 4PIN PH2.0mm Connector |
| Audio Output | HDMI Embedded Audio & 4PIN PH2.0mm |
| RF Input | Dual SMA Female 50Ω |
| Power Input | 2PIN PH2.0mm |
| USB Host | USB Type-A |
| OSD Key | OSD Display Switch |
| REC Key | Video Recording Switch |
| Data UART | 3PIN PH1.25mm TTL |
| Control UART | 4PIN PH1.25mm TTL |
| TF Card Slot | Micro SD Card |
Demodulation Parameters
| Parameter | Specification |
| Demodulation Format | COFDM (DVB-T) |
| Carrier Mode | 2K |
| Bandwidth | 1MHz ~ 8MHz Adjustable |
| FEC | 1/2, 2/3, 3/4, 5/6, 7/8 |
| Guard Interval | 1/32, 1/16, 1/8, 1/4 |
| Constellation | QPSK, 16QAM, 64QAM |
| Bitrate | 0.5Mbps ~ 31.67Mbps |
RF Specifications
| Parameter | Specification |
| Frequency Range | 160MHz ~ 860MHz |
| Frequency Step | 1KHz |
| Receiver Sensitivity | -97±1dBm |
Condition: BW=8MHz, QPSK, CR=2/3, GI=1/16
Video & Audio
| Parameter | Specification |
| Video Output | HDMI / CVBS / USB |
| Video Resolution | 1080P / 720P |
| Optional Resolution | 3840×2160P (4K) |
| Video Standard | NTSC / PAL |
| Video Decoding | H.264 / H.265 |
| Audio Decoding | AAC |
| Audio Output | HDMI Embedded / Analog AV |
| Encryption | AES256 |
| Storage Support | USB Disk / Micro SD |
Environmental Specifications
| Parameter | Specification |
| Operating Temperature | 0°C ~ +70°C |
| Storage Temperature | -40°C ~ +80°C |
Physical Characteristics
| Parameter | Specification |
| Dimensions | 91 × 80 × 30 mm |
| Weight | 169g |
Power Requirements
| Parameter | Specification |
| Input Voltage | 7V ~ 16V DC |
| Power Consumption | Approx. 250mA @ 12V |
LED Indicators
PWR LED
- Red solid light indicates normal power supply.
LINK LED
- Green blinking indicates successful wireless video reception.
REC LED
- Green solid light indicates video recording is active.
Control Buttons
REC Button
Used to start or stop video recording.
- The receiver automatically detects storage devices after power-on.
- Micro SD card has priority over USB storage.
- Recording starts automatically when storage is available.
- Press the REC button to stop or restart recording.
OSD Button
Controls the on-screen display (OSD).
- Short press: Turn OSD on/off
- Long press (>1 second): Switch display mode
- OSD settings are saved after reboot
Displayed information includes:
- RF frequency
- Bandwidth
- Constellation mode
- FEC & Guard Interval
- Air bitrate
- Video bitrate
- AES encryption status
- Signal strength of both antennas
- BER (Bit Error Rate)
- Recording status
QPSK CR：2/3 GI：1/16; Constellation, FEC, Guard interval
AIR：3.90Mbps; AIR, wireless transmitting bitrates
VBR：3.05Mbps AES OFF; VBR, video bitrates; AES OFF, AES encryption turned off.
SIG1：27 SIG2：22 ; SIG1, signal intensity of ant 1; SIG2, signal intensity of ant 2
ber1：0.14% ber2：100.00% ; ber1, bit error rate of ant 1; ber2, bit error rate of ant 2
REC OFF No Storage; video recording status
Applications
The VCAN2131 COFDM receiver is ideal for:
- UAV / Drone video downlink systems
- Tactical surveillance and law enforcement
- Military communication systems
- Robotic vehicle monitoring
- Emergency rescue operations
- Mobile broadcasting
- Border security
- Industrial inspection
- Maritime wireless monitoring
- Long-range HD video transmission
FAQ
Q1: What video formats does the VCAN2131 support?
The receiver supports H.264 and H.265 video decoding with resolutions up to 1080P@60fps. Optional 4K decoding is also available.
Q2: Does the receiver support encrypted transmission?
Yes. The VCAN2131 supports AES256 decryption for secure wireless communication.
Q3: Can the receiver record video locally?
Yes. Video can be recorded directly to a Micro SD card or USB storage device.
Q4: Does the receiver support mobile phone viewing?
Yes. The USB streaming function allows Android smartphones and tablets to monitor live video.
Q5: What is the advantage of diversity reception?
Dual-antenna diversity reception improves signal stability, reduces interference, and enhances transmission distance in difficult environments.
Q6: Can the operating frequency and bandwidth be customized?
Yes. The working frequency and bandwidth are fully adjustable according to application requirements.
Q7: Is the receiver suitable for moving platforms?
Yes. The VCAN2131 is optimized for high-speed mobile and non-line-of-sight transmission environments.
Package Contents
- VCAN2131 COFDM Wireless Receiver
- Power Cable
- AV Output Cable
- User Manual
Antennas and storage devices are optional accessories.
iVcan.com –
I have been using the COFDM Diversity 2 RF Antenna wireless video receiver, and it has exceeded my expectations. The receiver provides extremely stable and clear video reception from my wireless video transmitter, even in challenging environments. The diversity antennas effectively reduce signal dropouts and interference, ensuring smooth and reliable performance. I particularly appreciate the ability to customize the frequency with 1kHz steps, which makes fine-tuning the system quick and precise. The setup was straightforward, and the build quality feels robust and professional. Overall, this receiver has greatly improved my wireless video operations, offering excellent performance and reliability for long-range applications.