نظام نقل الفيديو اللاسلكي COFDM 200
مقدمة الوظيفة: A full HD video transmitter is one of the newest real-time transmission systems that have been launched to transmit broadcast HD images. With a small size (114mm*68mm*24mm), خفيفة الوزن (250ز) long transmission distance (more than 15KM per 1W) high resolution（1080P/60fps）, it is currently the wireless COFDM transmitter for the soldier with the highest resolution, the minimum size, the lightest weight and the longest transmission distance among COFDM full HD image transmission systems in China, and by adopting the advanced COFDM modulation techniques, air broadband and its strong resistance to multi-path interferences, it overcomes interferences brought by multipath reflection and occlusion within the usage of simulation and general modulation techniques, with high-speed shooting and real-time none line-of-sight transmission of high-quality full HD video images when moving at high speed, particularly suitable for using under complex environments. With the H.264 video coding standard, up to 1080P/60 HD resolution （1920*1080P/60fps, backward compatible to 720P）and HDMI( 3G HD-SDI is selectable) input interface which supports digital video/audio, it is characterized by its image sharpness, brighter colors and image smoothness. 1080P/60fps Wireless Full HD Image Transmission System Transmitter (250ز): HDMI Signal Input SDI Signal Input Receiver (150ز): COFDM Wireless Full HD Video Transmission MINI System
Product Features It is suitable for high-speed data transmission, generally with a channel rate of 8MHz, which can ensure high-quality audio transmission. In addition to its requirements for cameras, high-quality videos and audio also have high requirements for coding stream and channel rate. QPSK and 16QAM are available for modulation of each COFDM sub-carrier, after which generally with a channel rate of 8MHz. لذلك, H.264 high-quality encoding/decoding is allowed; the image resolution in the receiving end can be up to 1920*1080P/60 with backward compatibility; and requirements for later analysis, storage and editing can also be met.
Product Attributes Adjustable working frequency within the range of 300MHz-2.7GHz Rich video/audio interfaces: HDMI, SDI (قابل للتحديد) High-quality digital video processing and H.264 video codec, with high definition display Very low encoding latency: 450ms Stable image and voice transmission under high-speed movement and multipath interferences Strong NLOS non-line-of-sight transmission With space diversity reception With encryption (قابل للتحديد) Transmitting power≤1.0W (selectable transmitting powers, multi-stage adjustable)
Range of Application It is widely used in UAV (providing disaster relief, emergency rescues and forest-fire prevention), emergency communication, البث الإذاعي والتلفزيوني, and live broadcasts; individual reconnaissance of field forces; image transmission between public security men, الشرطة المسلحة, fire service commanding cars and the scouts as well as the command center; real-time high-quality image monitoring in fields of searching for smuggler in frontier areas, maritime affairs and sea coast defense at sea; wireless and mobile camera shooting cars for real-time news collection and competition transmission; wireless video transmission for aerial reconnaissance and monitoring from helicopters and airships. Diagram of Connection:
جدول المحتويات
Wireless HD Video Transmission System-Transmitter Specification
| نطاق الترددات | 300ميجا هرتز ~ 2.7 جيجا هرتز，قابل للتخصيص |
| Modes of Modulation and Constellations | COFDM 2K，QPSK/16QAM |
| Radio-frequency Power | ≤1.0 W |
| عرض النطاق الترددي للقناة | 8ميغاهيرتز |
| Technical Standard | H.264 standard |
| Video Code Stream | 8Mbps~12Mbps |
| System Latency | 450الآنسة |
| مسافة الإرسال(1W) | More than 15KM (1080P/50fps) |
| Compressed Format | H.264 |
| Audio/Video Input | HDMI、3G HD-SDI (قابل للتحديد) |
| Image Resolution | 1920*1080ف @ 60/50/30/25, backward compatible to 720P @ 60/50 (Rec video effects of the receiver end) |
| Audio/video input interface | mini HDMI、SMA interface(متاح) |
| Radio Frequency Interface | سما 50 Ohm single antenna |
Wireless HD Video Transmission System Receiver Specification
| نطاق الترددات | 300~862 ميجا هرتز (automatic search or manual setting) You need to use a Frequency Down Converter if you want the receiver frequency range at 862Mhz~3500Mhz (3.5ز) |
| وضع التعديل | COFDM 2K |
| Maximum Speed | 230Km/h @64QAM |
| كوكبة | QPSK、16QAM,64QAM |
| عرض النطاق | 8M Hz |
| Radio Frequency Interface | Double F 50 ohm antenna interface |
| تلقي الحساسية | -94ديسيبل |
| Output Interface | HDM//YPbPr + AV+ USB (connecting the mobile HDD record and preserving the video image ) |
| Parameter Setting Mode | infrared control |
| Video Resolution Ratio | 1920*1080P@60Hz/1280*720P |
| نسبة الشاشة | 16:9 |
| العمل الحالي | 350مللي أمبير @ 12 فولت |
| External Power Source | DC 12-24V |
| البعد الشامل | 92 x75 x30 mm (L x W x H) |
| وزن | 150ز |
| Covering | Magnalium Alloy |
Quotation
| نطاق الإرسال | 20كم | 50كم | 150كم |
| نموذج | Vcan20-Y | Vcan50-Y | Vcan150-Y |
| Price in CNY | ￥11848 | ￥24848 | ￥39648 |
| Price in USD | $1692 | $3549 | $5664 |
التعليمات
س: Can you change this product’s working frequency to 2.7GHz?
أ: نعم فعلا, the working frequency is customized. The COFDM HDMI video transmitted frequency range covers 300MHz-3500MHz (3.5غيغاهرتز), so it also supports 2.7GHz 2700MHz. But COFDM HDMI wireless receiver frequency only supports 170~860MHz. If you need 2.7G, you should use a frequency down converter at the receiver side. https://ivcan.com/p/cofdm-rf-frequency-down-converter/ extra cost increase USD790.
س: Can you make it as a two-way transmission or one-way transmission？
أ: This depends on the actual needs of your project. Our two-way transmission system not only downloads the video from the drone to the ground receiving station but also sends the control signal or command from the ground receiving station to the drone in the air at the same time. The one-way transmission system only completes the real-time download of the video from the drone, and cannot send control commands in the reverse direction.
2.7جيجا هرتز و في اتجاهين video data transmission system, we recommended the below link.
VTX for drone video data link long-range transmitter-receiver 30-50km 2X1.6WPA
One unit costs USD1450, if you need one transmitter and one receiver, one pair costs USD1450x2=USD2900.
Please note that two-way transmission mostly uses Ethernet LAN IP RJ45 as a video input connector, so if you want to use it for an HDMI camera, then you also need one HDMI to IP video encoder, which will have an extra cost of USD399.
2.7جيجا هرتز و طريقة واحدة video data transmission system, we recommended the below link.
Wireless Video Transmitter and Receiver for Camera, اتش دي ام اي اتش دي H265 264 جهاز تشفير 1 واط / 2.5 واط PA 1080P60 Vcan1726
One full set with transmitter-receiver antenna, 1watt power amplifier costs USD1176, and an extra frequency down converter from 2700MHz to 700Mhz USD790, totaling USD1966.
نظرة عامة على المنتج
ال COFDM Wireless Video Transmission System – 200 Series is a cutting-edge, full high-definition (عالية الدقة) wireless transmission solution designed for demanding professional, جيش, والتطبيقات الصناعية. Built around advanced COFDM (تعدد الإرسال بتقسيم التردد المتعامد المشفر) modulation technology, this system delivers superior performance in long-distance, غير خط البصر (NLOS), and mobile environments where traditional analog or single-carrier digital modulation systems typically fail.
مع أ تصميم مدمج (114mm × 68mm × 24mm), أ lightweight build (250g for the transmitter, 150g for the receiver), and a robust aluminum alloy housing, the COFDM 200 system is optimized for mobility, portability, and deployment in challenging field conditions. على الرغم من عامل الشكل الصغير, it is capable of transmitting full HD 1080p/60fps video over distances exceeding 15 kilometers at just 1W RF power, making it one of the most powerful and efficient wireless video transmitters available in its class.
This system supports ضغط الفيديو H.264 and offers HDMI and 3G-SDI (قابل للتحديد) inputs, ensuring compatibility with a wide variety of professional video equipment and cameras. At the receiving end, outputs include HDMI, YPbPr, ل, and USB for storage or recording, ensuring seamless integration into broadcast, يأمر, and monitoring workflows.
The COFDM Wireless Video Transmission System 200 excels in environments where traditional transmission methods struggle: urban areas with multipath reflections, fast-moving platforms, obstructed terrains, and long-distance aerial or maritime operations. Its ability to maintain a stable, real-time HD video feed in complex conditions makes it the go-to solution for UAV operators, المذيعين, إنفاذ القانون, defense forces, and emergency responders worldwide.
الميزات الرئيسية
- Ultra-Compact & وزن خفيف
- الارسال: 114mm × 68mm × 24mm, 250ز
- المتلقي: 92mm × 75mm × 30mm, 150ز
- Ideal for UAVs, handheld use, and mobile operations.
- Long Transmission Distance
- أكثر من 15 كم (1W, لوس)
- Configurable models available for 20 كم, 50 كم, وحتى 150 كم ranges.
- Full HD Video Quality
- الدعم 1080p at 60fps دقة.
- Backward compatible with 720p at 50/60fps.
- High-quality H.264 codec ensures sharp images, vivid colors, وتشغيل سلس.
- قليل من الكمون
- End-to-end system latency as low as 450الآنسة.
- Suitable for real-time monitoring and tactical operations.
- تعديل COFDM المتقدم
- Strong resistance to multipath interference and signal occlusion.
- Reliable performance in urban environments, الغابات, maritime zones, and mountainous terrain.
- Available constellations: QPSK, 16QAM, and 64QAM for optimized link performance.
- Flexible Frequency Range
- 300 ميغاهيرتز إلى 2.7 غيغاهرتز (customizable up to 3.5 GHz with down converter).
- Receiver standard range: 300-862 ميجا هرتز.
- خياري تردد أسفل المحول extends reception to 862 MHz–3.5 GHz.
- Stable Performance Under Mobility
- Supports speeds up to 230 km/h at 64QAM تعديل.
- Ideal for use on helicopters, الطائرات بدون طيار, moving vehicles, and high-speed boats.
- Strong NLOS Transmission
- Maintains high-quality video links even when obstacles block the direct line of sight.
- Incorporates space diversity reception for enhanced stability.
- يؤمن & موثوق
- Optional AES encryption for secure transmission.
- Adjustable RF power levels up to 1W.
- Rich Input/Output Options
- الارسال: HDMI and 3G-SDI (قابل للتحديد).
- المتلقي: HDMI, YPbPr, ل, يو اس بي.
- SMA RF connectors, IR-based configuration.
- Versatile Power Options
- Transmitter power consumption: low, suitable for UAV battery operation.
- المتلقي: DC 12–24V, current draw approx. 350mA at 12V.
المواصفات الفنية
Transmitter Specifications
- نطاق الترددات: 300 ميغاهيرتز ~ 2.7 غيغاهرتز (customizable to 3.5 GHz with converter)
- تعديل: COFDM 2K, QPSK/16QAM
- خرج طاقة الترددات اللاسلكية: ≤1.0W (قابل للتعديل, multi-stage)
- عرض النطاق الترددي للقناة: 8 ميغاهيرتز
- ترميز الفيديو: H.264 standard
- معدل البت للفيديو: 8 Mbps – 12 ميغابت في الثانية
- System Latency: ~450ms
- مسافة الإرسال: >15 km (لوس, 1W, 1080p/50fps)
- Input Interfaces: HDMI / 3G HD-SDI (قابل للتحديد), mini HDMI
- Image Resolution: حتى 1920 × 1080 @ 60/50/30/25fps, backward compatible with 720p
- واجهة RF: SMA 50Ω single antenna
- الأبعاد: 114 × 68 × 24 مم
- وزن: 250ز
مواصفات جهاز الاستقبال
- نطاق الترددات: 300-862 ميجا هرتز (معيار)
- With frequency down converter: 862 MHz–3.5 GHz
- تعديل: COFDM 2K
- Constellations: QPSK, 16QAM, 64QAM
- Max Supported Speed: 230 كم/ساعة (at 64QAM)
- عرض النطاق الترددي للقناة: 8 ميغاهيرتز
- واجهة RF: Dual F-type 50Ω antenna input (space diversity)
- تلقي الحساسية: -94 ديسيبل
- واجهات الإخراج: HDMI, YPbPr, ل, يو اس بي (for HDD recording)
- دقة الفيديو: حتى 1920 × 1080 @ 60fps
- إعداد المعلمة: Infrared remote control
- نسبة الارتفاع: 16:9
- العمل الحالي: ~350mA @ 12V
- مدخلات الطاقة: DC 12–24V
- الأبعاد: 92 × 75 × 30 مم
- وزن: 150ز
- مواد الإسكان: Magnalium Alloy (durable, خفيفة الوزن)
التطبيقات
The COFDM Wireless Video Transmission System 200 Series is engineered for versatile deployment across multiple industries and scenarios. Its combination of compact size, long range, NLOS capability, and rugged construction makes it an indispensable tool for:
- Unmanned Aerial Vehicles (UAVs/Drones):
- Real-time video downlink for aerial reconnaissance.
- Disaster relief, emergency rescue operations, forest-fire monitoring.
- Surveillance in difficult terrains and hostile environments.
- Emergency Communication & السلامة العامة:
- Secure video transmission for police, fire brigades, and armed forces.
- Command vehicles relaying live footage to command centers.
- Border patrols, smuggling prevention, and coastal surveillance.
- البث & وسائط:
- Wireless cameras for outdoor live news, الأحداث الرياضية, and field reporting.
- Helicopter and airship-mounted broadcast systems.
- Mobile camera setups for real-time film or competition coverage.
- الدفاع & Military Applications:
- Tactical reconnaissance for soldiers on the field.
- Real-time battlefield monitoring.
- Secure video links for special operations.
- Maritime & Coastal Monitoring:
- Ship-to-ship and ship-to-shore video communication.
- Harbor and sea border defense monitoring.
التكوينات الاختيارية
The system is available in several range configurations to match mission requirements:
| نموذج | نطاق الإرسال | سعر (CNY) | سعر (دولار أمريكي) |
|---|---|---|---|
| Vcan20-Y | 20 كم | ¥11,848 | $1,692 |
| Vcan50-Y | 50 كم | ¥24,848 | $3,549 |
| Vcan150-Y | 150 كم | ¥39,648 | $5,664 |
Additional Options
- تردد أسفل المحول
- Required when extending receiver frequency to 862 MHz–3.5 GHz.
- Extra cost: دولار أمريكي 790.
- Two-Way Transmission System
- Supports bidirectional communication: وصلة تنزيل الفيديو + command uplink.
- Recommended model: بعيدة المدى VTX for drone video data link (30-50 كم, 2 × 1.6W PA).
- Pricing: دولار أمريكي 1450 per unit (pair = USD 2900).
- ملحوظة: Requires Ethernet/IP (RJ45) مدخل. HDMI users must add an HDMI-to-IP video encoder (+دولار أمريكي 399).
- One-Way Transmission (2.7 غيغاهرتز)
- Recommended model: Wireless HDMI HD H.264/H.265 Transmitter (1W/2.5W PA).
- يكلف: دولار أمريكي 1176 per set (تكساس + RX + هوائي).
- مع 2.7 GHz down converter: دولار أمريكي 1176 + 790 = USD 1966 total.
خاتمة
ال نظام نقل الفيديو اللاسلكي COFDM 200 Series is the ultimate solution for professionals requiring لمسافات طويلة, مستقر, and secure HD video transmission under the most challenging conditions. By combining advanced COFDM modulation, low latency H.264 encoding, compact form factors, and customizable frequency ranges, it ensures reliable performance in applications ranging from UAV reconnaissance and emergency response to live broadcasting and military operations.
Whether you require a lightweight UAV-mounted transmitter, a rugged receiver for command operations, أو a full-scale long-range bidirectional system, the COFDM 200 Series delivers unparalleled flexibility, أداء, والموثوقية.
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