50W Ricevitore trasmettitore video wireless COFDM PA 280–300 MHz
Table of Contents
Panoramica
IL 50W PA 280–300MHz COFDM Wireless Video Transmitter and Receiver is a long-distance, high-power digital video transmission system designed for professional-grade aerial, terra, and marine video communication applications.
Operando all'interno del 280–300MHz frequency range, this system delivers high penetration, ultra-long range, and stable video transmission performance under both LOS (Linea di vista) E NLOS (Non-linea di vista) condizioni.
By adopting advanced Modulazione COFDM E H.264/H.265 compression technologies, it enables real-time transmission of high-definition HDMI video with excellent anti-interference and mobility capabilities. L'integrato 50-amplificatore di potenza in watt (PA) ensures reliable long-range communication — reaching Sopra 100 kilometers line-of-sight when paired with a high-gain antenna.
This system is specially engineered for UAV, all'UGV, USV, pubblica sicurezza, forze dell'ordine, ricognizione militare, and live broadcast scenarios where high-quality, bassa latenza, and secure wireless video communication is essential.

Caratteristiche principali
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Powerful 50-Watt RF Output
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Significantly extends transmission distance and improves signal stability over rugged terrain and over-water environments.
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Supporta 100–150 km LOS range when equipped with matching directional antennas.
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Ampia gamma di frequenze (280–300 MHz)
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Custom-tuned for long-distance, low-frequency transmission with excellent diffraction ability and wall penetration.
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Frequency can be customized in 1 MHz steps to fit your local frequency allocation.
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Modulazione COFDM avanzata
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Multi-carrier technology with robust resistance to multipath fading and interference.
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Supporta QPSK / 16QAM / 64QAM modulation mapping and multiple FEC and guard interval settings.
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Trasmissione video ad alta definizione
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Supporta 1080P@60fps HDMI ingresso video.
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Compatible with standard-definition CVBS analog input (opzionale) for legacy cameras.
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Low Latency Encoding
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Usi H.264/H.265 compression with end-to-end latency as low as 200–250ms.
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Opzionale ultra-low latency version (<50SM) available for real-time video applications such as FPV or defense.
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AES-128 Encryption
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Ensures secure and private communication, preventing unauthorized access or interception.
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All-Environment Durability
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Rugged aluminum alloy chassis with heat sink design.
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Opzionale IP67 waterproof and shockproof housing for marine or harsh-field applications.
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Flexible Power Options
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Opera da DC 11–13V, compatible with battery packs and vehicle power systems.
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Power consumption depends on RF output (ca. 6–8A @12V for 50W PA).
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LOS and NLOS Operation
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Supports both line-of-sight and non-line-of-sight transmission.
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Effective for urban, montuoso, or over-sea communication environments.
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Dati & Trasmissione telemetrica
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Integrated transparent RS232 serial data link supports bidirectional telemetry, controllare, or sensor data alongside the video signal.
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Customizable Design
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Optional antennas, frequenze, livelli di potenza in uscita, and interfaces (HDMI, SDI, CVBS).
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Full OEM/ODM service for integration into drone or vehicle platforms.
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Specifiche tecniche
Transmitter Specifications
| Parametro | Description |
|---|---|
| Modello | COFDM-TX50W-280 |
| Gamma di frequenza | 280–300 MHz (personalizzabile, step 1 MHz) |
| Potenza in uscita | 50 Watt (adjustable 1W–50W) |
| Modulation | COFDM |
| Mappatura della modulazione | QPSK / 16QAM / 64QAM |
| Error Correction (FEC) | 1/2, 2/3, 3/4, 5/6, 7/8 |
| Intervallo di guardia | 1/32, 1/16, 1/8, 1/4 |
| Carrier Number | 2K |
| Larghezza di banda | 2 / 3 / 4 / 5 / 6 / 7 / 8 MHz (selezionabile) |
| Velocità dati | 2–20 Mbps adjustable |
| Ingresso video | HDMI (predefinito), SDI or CVBS optional |
| Codifica video | H.264 / H.265 |
| Input Video Format | 720×480 @60i, 1080×60P, 1080×50P, 1080×30P |
| Encryption | AES-128 |
| Planarità | ≤0.2 dB within 10 MHz |
| Shoulder Ratio | ≥30 dB |
| Second Harmonic | ≤–45 dB |
| MER | ≥32 dB |
| Tensione di lavoro | DC 11–13V |
| Corrente di lavoro | ≤8.0A @ 12V (50Potenza W) |
| Interfaccia | RS232 control & transparent data |
| Cooling System | Integrated aluminum heat sink + fan |
| Dimensioni | 18.8 × 14.7 × 3.4 cm |
| Peso | 1.2 kg (with PA and housing) |
Specifiche del ricevitore
| Parametro | Description |
|---|---|
| Modello | COFDM-RX-280 |
| Receive Frequency Range | 170–860 MHz (factory default: 280–300 MHz) |
| Larghezza di banda | 2 / 3 / 4 / 5 / 6 / 7 / 8 MHz |
| Sensibilità | –98 dBm @ 2 MHz, –94 dBm @ 8 MHz |
| Connettore di ingresso RF | N-type or SMA |
| Impedenza di ingresso | 50 OH |
| Demodulazione | COFDM |
| Constellation | QPSK, 16QAM, 64QAM |
| Decodifica video | MPEG-2 / H.264 / H.265 |
| Proporzioni | 4:3 O 16:9 selezionabile |
| Uscita video | HDMI / CVBS / SDI (personalizzabile) |
| Uscita audio | Stereo unbalanced, 300mV |
| Tensione operativa | CC 12 V / AC220V optional |
| Consumo energetico | ≤1A @ DC12V |
| Temperatura operativa | –20°C to +50°C |
| Dimensioni | 480 × 260 × 45 mm (1U rackmount) |
| Peso | 1.5 kg (two-way diversity version: 2.5 kg) |

Scenari applicativi
IL 50W COFDM Wireless Video Transmission System is widely used in demanding video communication fields requiring stable HD video links over long distances or complex terrains:
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Unmanned Systems
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UAV / Drone real-time video downlink
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UGV (Veicolo terrestre senza pilota) & UPS (Unmanned Surface Vessel)
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Pubblica sicurezza & Forze dell'ordine
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Police surveillance, risposta all'emergenza, pattuglia di frontiera
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Real-time transmission for mobile command centers
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Broadcast and Media
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Live events, outdoor sports, mountain climbing, aerial broadcasting
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Wireless HD camera links for TV stations or ENG crews
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Military and Defense
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Ricognizione tattica, convoy monitoring, and battlefield communication
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Marine Communication
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Ship-to-shore, boat-to-boat video communication under long distance or NLOS conditions
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Ispezione industriale
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Remote oilfield, minerario, or infrastructure monitoring systems
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Precautions for Custom Orders
When placing a custom order, please specify:
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Banda di frequenza: Default 280–300MHz; other bands optional from 170–860MHz.
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Potenza in uscita: 1W, 2W, 5W, 10W, 20W, or 50W available.
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Interfaccia video: HDMI / SDI / CVBS.
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Tipo di antenna & Lunghezza:
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Trasmettitore: short omnidirectional antenna for UAVs or long whip for ground use.
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Ricevitore: long omnidirectional or Yagi directional antenna for maximum gain.
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Tipo di custodia: Standard aluminum or waterproof/shockproof “three-proof” shell.
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Power Supply: 12V DC battery, vehicle power, or AC adapter.
Domande frequenti
Q1: What is the maximum transmission distance for the 50W COFDM system?
UN: In line-of-sight conditions with a 1.8m FRP antenna, it can reach fino a 150 km. For over-sea transmission, the range may even exceed 160 km due to better reflection and low-frequency propagation.
Q2: Can it work in a cold environment like –20°C?
UN: SÌ. Both the transmitter and receiver are rated for –20°C to +50°C, suitable for high-altitude or winter operations.
Q3: Does it support both HDMI and CVBS input?
UN: SÌ. The default is HDMI. If you need a lower-cost version or to connect analog cameras, choose the CVBS (Yellow RCA) modello.
Q4: Can I use this system for ground-to-ground transmission?
UN: SÌ. Tuttavia, both antennas must be elevated to improve the signal path. On flat ground with low antenna height, the typical range is 2–5 km. Increasing antenna height or using directional antennas significantly increases range.
Q5: Can I transmit telemetry and video at the same time?
UN: SÌ. The system includes a transparent RS232 data channel for transmitting telemetry, GPS, or control data alongside video.
Q6: How long can the transmitter work on battery power?
UN: For 50W output, UN 12V 12Ah lithium battery provides about 1.5–2 hours of continuous operation. Power duration depends on transmission output and battery capacity.
D7: Are the receiver antennas diversity type?
UN: SÌ. Il ricevitore supporta dual-antenna diversity reception, improving stability and reducing signal dropouts during motion or in complex terrains.
Q8: Can the transmitter display signal strength feedback to the operator?
UN: SÌ. The optional R380 monitoring app or receiver interface can display signal strength, helping operators optimize antenna alignment.
D9: Can it be customized to other frequencies such as 1500MHz or 5.8GHz?
UN: SÌ. Custom frequency versions (200–6000 MHz) are available upon request, depending on local spectrum regulations.
Q10: What type of antenna is recommended for marine or ship use?
UN: We recommend 1.8m FRP omnidirectional antennas or Yagi directional antennas with waterproof connectors for over-sea operation.
Still Have a Question?
If you need customized solutions for your UAV, veicolo, or ground communication system, Per favore contact our technical team.
Forniamo OEM/ODM support, including frequency calibration, integration guide, and antenna matching design.




iVcan.com –
I’ve been using the 50W PA 280–300MHz COFDM Wireless Video Transmitter Receiver for several months, e sono molto impressionato dalle sue prestazioni. The transmission range is outstanding — we achieved stable HD video over 100 km in open terrain with no signal dropouts. The video quality is crisp and smooth, even when the drone is moving fast or flying behind small obstacles. The aluminum housing feels solid and professional, and the system stays cool during long operations. It’s reliable, potente, and perfect for long-range UAV and vehicle video transmission tasks.