COFDM Transmitter Secure Wireless Video Transmission for UAVs,
Drones & Robotic Vehicles
Ensure encrypted and reliable HD video for unmanned vehicles in
industrial, security, or research applications.
Key Features
AES encryption
Stable COFDM transmission
Works in NLOS scenarios
Product Overview
Boost Your Drone's Video Performance with the HC-T820 COFDM
Transmitter – a compact and lightweight long-range HD video
transmission solution for UAVs and drones. Featuring a H.265/H.264
encoder, COFDM modulator, and RF power amplifier, it supports AV,
HDMI, SDI, and AHD video input for seamless NLOS and real-time
aerial video links. Perfect for industrial inspection,
surveillance, FPV, and mobile drone operations.
Technical Specifications
COFDM Wireless Modulation Transmission
| Parameter | Specification |
|---|
| Product name | COFDM Transmitter Secure Wireless Video Transmission for UAVs,
Drones & Robotic Vehicles |
| Model number | HCT820 |
| Wireless modulation | COFDM |
| IFFT mode | 2K |
| Wireless bandwidth | 1MHz~8MHz adjustable (1KHz step) |
| FEC options | 1/2, 2/3, 3/4, 5/6, 7/8 |
| Guard interval | 1/32, 1/16, 1/8, 1/4 |
| Constellation | QPSK, 16QAM, 64QAM |
| Wireless code stream | 0.5Mbps to 31.67Mbps |
| Frequency range | 300~860MHz (customizable with 1KHz step) |
| Transmission power | 1W (30dBm) or 2.5W (34dBm) standard (10W/20W optional) |
Audio and Video Processing
| Parameter | Specification |
|---|
| Video input | Single-channel HD/SD (auto-detected, HDMI preferred) or optional
dual input |
| Supported formats | 1080@60P/50P/30P/25P/24P/60I/50I/30I, 720@60P/50P/30P, 720*480 60I
(NTSC), 720*576 50I (PAL) |
| Video encoding | H265/H264 |
| Audio input | HDMI embedded or analog |
| Audio format | AAC, 16bit, stereo, 32Kbps |
| Encryption | AES256 |
| Dimensions | 104.5*50*27mm (excluding connectors) |
| Weight | <140g |
| Power consumption | 1W PA: <15W, 2.5W PA: <23W (12V DC, 11~13V) |
| Latency | H265: 200~300ms; H264: 50~130ms |
COFDM Transmitter Interface
Application
Frequently Asked Questions
What platforms are compatible with the COFDM transmitter?
The transmitter supports UAVs, drones, UGVs, and robotic vehicles,
including multirotor, fixed-wing, and VTOL platforms. It can be
integrated via HDMI, SDI, AV, or AHD inputs.
What video quality does it support?
It supports HD 1080p and 4K video with ultra-low latency
(<120ms), providing clear, real-time video for surveillance,
industrial inspection, FPV, and remote monitoring.
How secure is the video transmission?
The system uses AES-256 encryption and interference-resistant COFDM
modulation, ensuring secure, stable, and private wireless video
links, even in harsh or congested environments.
What is the transmission range?
The transmitter provides long-range video transmission up to 20–30
km+ (Line-of-Sight). Non-Line-of-Sight (NLOS) operation is
supported using relay or multi-hop configurations.
Is it easy to install and deploy?
Yes, it features a compact and lightweight design (104.5*50*27mm,
140g) with plug-and-play deployment, allowing quick setup without
additional tools or complex configurations.
Can it be used in harsh environments?
Absolutely. The system is ruggedized and operates reliably in
temperatures ranging from -20°C to +55°C, suitable for outdoor
industrial, maritime, and disaster response applications.
Can multiple vehicles be monitored simultaneously?
Yes. The system supports multi-vehicle monitoring through multi-hop
or mesh network configurations, allowing operators to track several
UAVs or UGVs in real time.
What applications is this transmitter ideal for?
Common applications include:
- UAV aerial surveillance & FPV operations
- Industrial & infrastructure inspection
- Search & rescue operations
- Robotic vehicle control
- Maritime monitoring
- Oil field & industrial site monitoring
Ethernet HDMI Input 4K Video COFDM Wireless Transmitter Module With H265/H264 Low Latency
