15km~30km COFDM Drone Video Transmitter For Encrypted Real Time Transmission System
Product Attributes
| Attribute |
Value |
| Wireless (De)modulation |
COFDM |
| Frequency |
160MHz~860MHz |
| Encryption |
AES256 |
| Video encode |
H265/H264 |
| Size |
104.5*50*27mm |
| OEM&ODM |
Support |
Key Features
- COFDM modulation ensures secure wireless communication
- H265/H264 video encoding supporting up to 1080P/I @60fps
- AES256 encryption
- Supports non-line-of-sight high-speed mobile transmission up to 800km/h
- Configurable center frequency, wireless bandwidth, and transmission stream
Overview
The HC-T820 high definition COFDM drone video transmitter combines encoder board, COFDM modulator module, and mini 1W, 2W, or 5W power amplifier in a compact CNC aluminum alloy casing. Its lightweight design delivers high resolution and long transmission distance performance.
Technical Specifications
| Interface |
| Model Number |
HCT820 |
| HD video input |
Standard HDMI interface |
| SD video input |
4PIN 1.5mm pitch connector (CVBS Analog Audio Video Input) |
| One-way transparent data transmission serial port |
3PIN 1.5mm pitch connector (default TTL3.3V level, optional RS232) |
| 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 forward |
| 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 |
Customizable between 300~860MHz with 1KHz step |
| Transmission power |
1W(30dBm) or 2.5W(34dBm), optional 10W/20W |
Audio and Video Processing
| Support video input |
Default single-channel HD or SD with auto-detection |
| Supported video formats |
1080@60P, 1080@50P, 1080@30P, 1080@25P, 1080@24P, 1080@60I, 1080@50I, 1080@30I, 720@60P, 720@50P, 720@30P, 720*480 60I(NTSC), 720*576 50I(PAL) |
| Video encoding |
H265/H264 |
| Audio input |
HDMI embedded audio or analog audio |
| Audio format |
AAC, 16bit, stereo, 32Kbps |
| Encryption |
AES256 |
| Size |
104.5*50*27mm (Excludes protruding connectors) |
| Weight |
Less than 140g |
| Power and Power Consumption |
DC 12V power supply (11~13V), less than 15W for 1W PA, less than 23W for 2.5W PA |
| Latency |
H265:200~300 ms; H264: 50~130 ms |
HC-T820 Video Transmitter Interface
Recommended COFDM Wireless Receiver
COFDM Wireless Receiver Key Features
- COFDM demodulation with H.264 video decoding
- Full HD resolution at 1080P/60fps
- AES decryption for enhanced security
- DVR recording via Micro SD card or USB disk
- Built-in RTSP server for Ethernet video streaming
- USB host support for remote device streaming
- OSD mode for on-screen character display
- Stable NLOS and high-speed mobile transmission
- Adjustable working frequency and bandwidth