1W 2.5W Wireless COFDM HD Transmitter With H265 H264 Encoder For UAV Drones
Key Features
- COFDM modulation technology for reliable transmission
- H265/H264 video encoding supporting up to 1080P/I @60fps
- AES256 encryption for secure video transmission
- Non-line-of-sight high-speed mobile transmission up to 800km/h
- Configurable center frequency, wireless bandwidth, and transmission stream
Product Attributes
| Attribute |
Value |
| Wireless modulation |
COFDM |
| Transmission power |
1W(30dBm) or 2.5W(34dBm) |
| Frequency |
160MHz~2700MHz |
| Encryption |
AES256 |
| Bandwidth |
1MHz~8MHz |
| Wireless code stream |
0.5Mbps to 31.67Mbps |
Overview
The HC-T820 COFDM HD transmitter features an integrated encoder board, COFDM modulator module, and mini power amplifier. Housed in a CNC aluminum alloy enclosure (available in silver or black), this compact and lightweight unit delivers high-resolution video with long transmission range.
Technical Specifications
Interfaces
HD video input: Standard HDMI interface
SD video input: 4PIN 1.5mm pitch connector (CVBS Analog Audio Video Input)
Data transmission serial port: 3PIN 1.5mm pitch connector (default TTL3.3V level, RS232 optional)
Configure serial port: 4PIN 1.5mm pitch connector, TTL3.3V
Power input: XT30PW-M connector (12V Power Supply)
Antenna port: SMA male
COFDM Wireless Modulation Transmission
Wireless modulation: COFDM
IFFT mode: 2K
Wireless bandwidth: 1MHz~8MHz adjustable, 1KHz step
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
Wireless code stream: 0.5Mbps to 31.67Mbps
Frequency: 300~860MHz (customizable), 1KHz step
Transmission power: 1W(30dBm) or 2.5W(34dBm), optional 10W/20W
Audio and Video Processing
Video input: Default single-channel HD or SD (auto-detected)
Supported video formats: 1080@60P, 1080@50P, 1080@30P, 720@60P, etc.
Video encoding: H265/H264
Audio input: HDMI embedded or analog
Audio format: AAC, 16bit, stereo, 32Kbps
Encryption: AES256
Size: 104.5*50*27mm (excluding connectors)
Weight: Less than 140g
Power consumption: <15W (1W PA), <23W (2.5W PA)
Latency: H265: 200~300ms; H264: 50~130ms
COFDM HD Transmitter Interface Signal
Frequently Asked Questions
Does your COFDM HD video transmitter support changing frequency to be 1.2G/1.4G?
The transmitter frequency can be 160MHz~2700MHz, but our COFDM wireless receiver only supports 170~860MHz. For 1.2G or 1.4G, a frequency down converter is required at the receiver end.
Does this COFDM HD transmitter support SDI video input?
Yes, our COFDM HD transmitters support HDMI, SDI, CVBS AV, IP Ethernet RJ45 and AHD video input. Please specify your preferred video type.
What's the max distance for the 2.5W PA transmitter?
For UAV applications, the transmission range is about 50km when the UAV is at 300 meters altitude with receiver antennas positioned as high as possible.
Does your COFDM HD transmitter and receiver support standard DVB-T protocol?
Yes, it supports three working modes: standard DVB-T protocol, COFDM protocol with encryption/decryption, and COFDM low latency protocol with H264 encoding.
Can the transmitter handle two channels simultaneously (HDMI video and audio)?
Our transmitters support one HDMI and one auxiliary CVBS audio/video input simultaneously. Currently, only one sound source is supported (selectable between HDMI or CVBS via parameter configuration).
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