Product Overview
The 1350–1400 MHz 20W Power Amplifier (PA) COFDM SDI Wireless Video Transmitter and Receiver is a high-performance, long-range digital video transmission system engineered for professional applications that demand reliability, low latency, and robust non-line-of-sight (NLOS) performance.
Operating within the 1.4 GHz frequency band, this system integrates COFDM (Coded Orthogonal Frequency Division Multiplexing) modulation with an advanced SDI/HDMI/CVBS video interface to ensure high-definition (HD) video transmission across extended distances, even in challenging environments with multipath interference.
Designed with a programmable RF power amplifier offering up to 20 watts of RF output, the system provides exceptional range—reaching 100–150 km line-of-sight (LOS) when paired with high-gain directional antennas. At the same time, it supports reliable performance in urban, mountainous, or foliage-obstructed areas where conventional wireless video systems fail.
The kit includes both a wireless transmitter and a wireless receiver, with dual down-converters configured for 1350–1400 MHz input shifted to a 370 MHz IF output (local oscillator: 1000 MHz). This design enables compatibility with the system’s wideband receiver while maintaining excellent selectivity and sensitivity.
The transmitter accepts SDI, HDMI, and CVBS inputs and embeds both video and audio into the COFDM stream. The receiver outputs via HDMI, CVBS, and Ethernet RJ45 (RTSP/UDP streaming) for seamless integration with modern displays, NVRs, and computer-based monitoring systems.
Built for flexibility, the system is fully customizable. Customers can specify different frequency ranges (70–2500 MHz transmitter, 170–860 MHz receiver with down-conversion), RF power levels (10W, 20W, or custom), bandwidths, and even encryption standards such as AES-128.
From UAV video downlinks and defense reconnaissance to law enforcement, search & rescue, and live broadcasting, this solution provides unmatched long-range wireless video capability.
Key Features
-
Custom Frequency Range: Supports 1350–1400 MHz band with dual down-converters (other frequencies available upon request).
-
High Output Power: Integrated 20W PA (programmable to 10W for reduced consumption).
-
Multiple Video Interfaces: SDI, HDMI, CVBS, and AHD input on TX; HDMI, CVBS, and Ethernet (RTSP/UDP) output on RX.
-
COFDM Modulation: Superior multipath rejection and robust NLOS performance compared to analog or single-carrier systems.
-
Long-Range Capability: Achieves 100–150 km line-of-sight with proper antenna setup at 20W RF output.
-
Low Latency: End-to-end system latency as low as 100–150 ms, suitable for real-time UAV piloting and monitoring.
-
Flexible Configuration: Parameters set via AT commands, Web UI, or the programmer tool (LCD + keypad).
-
Data Transmission Support: TTL serial port for telemetry, remote control, and low-bandwidth data.
-
Encryption: Supports AES-128 secure video transmission (optional).
-
Scalability: Multiple receivers can monitor the same transmitter; customizable bandwidth (2/4/8 MHz).
-
Power Options: Programmable between 10W and 20W output; DC 24V input for transmitter, 12V for receiver.
-
Weather Resistant: Rugged construction with optional IP-rated enclosures for outdoor use.
-
Wide Application Fields: UAVs, law enforcement, military, broadcasting, disaster response, and surveillance.
Technical Specifications
General
| Parameter | Transmitter (TX) | Receiver (RX) |
|---|---|---|
| Operating Frequency | 1350–1400 MHz (customizable 70–2500 MHz) | 170–860 MHz native; with down-converter 1350–1400 MHz → 370 MHz |
| Modulation | COFDM | COFDM |
| Channel Bandwidth | 2 / 4 / 8 MHz (configurable) | 2 / 4 / 8 MHz (configurable) |
| Video Latency | 100–150 ms typical | — |
| Encryption | AES-128 (optional) | AES-128 (optional) |
| Transmission Range | Up to 100–150 km LOS with 20W PA | — |
| RF Output Power | 10W / 20W selectable (other options on request) | N/A |
| Antenna Interface | N-Type / SMA | N-Type / SMA |
Video Interfaces
| Parameter | Transmitter | Receiver |
|---|---|---|
| Video Input | SDI, HDMI, CVBS, AHD | — |
| Video Output | — | HDMI, CVBS, RJ45 (RTSP/UDP) |
| Resolution Support | Up to 1080p30 HD-SDI; HDMI up to 1080p; CVBS SD | 1080p HDMI, CVBS SD |
| Audio | Embedded in SDI/HDMI or CVBS input | Extracted to HDMI/CVBS |
Data Interfaces
| Parameter | Details |
|---|---|
| TTL Serial Port | 3.3V logic, TX/RX/GND |
| Baud Rate | 9600 – 115200 bps (configurable) |
| Use Cases | Telemetry, GPS data, flight control signals, remote triggering |
Power & Environmental
| Parameter | Transmitter | Receiver |
|---|---|---|
| DC Input Voltage | 24V DC (robust supply required) | 12V DC |
| Current Draw | Dependent on PA output (10W vs 20W) | <2A typical |
| Power Consumption | ~50–100% higher at 20W than 10W | Low power |
| Weight | ~1105 grams (TX + PA) | ~850 grams (RX, typical) |
| Protection | Overheat protection, power regulation | Standard |
| Operating Temp | -20°C to +55°C | -20°C to +55°C |
Applications
This 1350–1400 MHz COFDM SDI Wireless Video System is designed for professional-grade use where long range, robust video transmission, and high reliability are mission-critical.
-
UAV / Drone Video Downlink: Real-time HD video + telemetry for inspection, mapping, defense, and filmmaking.
-
Military & Defense: Secure, long-range video transmission for reconnaissance, situational awareness, and tactical missions.
-
Law Enforcement & Public Safety: Live surveillance feeds from mobile units, helicopters, or covert locations.
-
Search & Rescue (SAR): Reliable NLOS transmission in challenging terrains such as mountains or forests.
-
Broadcasting & Media: Wireless HD video links for OB vans, field production, and live event coverage.
-
Industrial Monitoring: Remote video from hazardous or hard-to-reach environments.
Accessories & Options
-
Programmer Tool: Handheld LCD + keypad for on-site parameter setup.
-
Dual Down-Converters: For 1350–1400 MHz → 370 MHz IF compatibility.
-
Antenna Options:
-
TX: Omnidirectional or semi-directional antennas.
-
RX: High-gain Yagi, flat-panel, or parabolic dishes for maximum range.
-
-
Encryption Module: Optional AES-128 for secure video/data.
-
Power Amplifier Options: 10W, 20W, or customized levels (5W, 30W, etc.).
-
Ruggedized Enclosure: IP65/IP67 weatherproof housings for outdoor deployment.
Configuration & Management
Operators can configure and monitor the system in multiple ways:
-
AT Commands: Serial control via CFG port.
-
Web UI: Manage video encoder settings, stream protocols, and basic system parameters.
-
Programmer Tool: Convenient field configuration without a PC.
-
Firmware Updates: Performed via USB/serial programmer connection.
Configurable parameters include:
-
Frequency (within allocated band).
-
Bandwidth (2/4/8 MHz).
-
RF Power (10W or 20W).
-
Gain settings.
-
Encryption keys.
-
Video encoding parameters.
-
Data port baud rate.
Compliance & Licensing
Important: The 1350–1400 MHz frequency band is not globally license-free. Operation at 20W RF output almost always requires a regulatory license. Users must comply with local communications regulations before deploying this system.
We can also customize another frequency to meet your demand. Please choose one as the working frequency from 170-3500MHz.
Conclusion
The 1350–1400 MHz 20W PA COFDM SDI Wireless Video Transmitter and Receiver is a cutting-edge solution for long-range, low-latency, and secure wireless video transmission. With its 20W programmable RF power, COFDM modulation, and flexible interface options, it surpasses conventional wireless systems in range, reliability, and versatility.
Whether for UAV video downlinks, defense surveillance, public safety, or professional broadcasting, this system provides unmatched performance, scalability, and customization, making it the preferred choice for mission-critical wireless video applications worldwide.