جهاز استقبال مرسل فيديو SD CVBS AV رخيص الثمن لطائرات بدون طيار FPV
جهاز إرسال الفيديو اللاسلكي COFDM & Receiver – Long-Range, يؤمن, الكمون المنخفض
جدول المحتويات
مقدمة
The COFDM-912T Wireless Video Transmitter and Receiver system is a professional-grade solution designed for طويلة المدى, real-time video and data transmission. Built on advanced COFDM (تعدد الإرسال بتقسيم التردد المتعامد المشفر) تكنولوجيا التعديل and high-performance MPEG-2/H.264 video compression, يسلم هذا النظام مستقر, interference-resistant, and encrypted digital video links for UAVs, في UGV, مراقبة أمنية, استطلاع عسكري, البث المباشر, and other demanding applications.
Unlike conventional analog systems, COFDM technology ensures reliable video quality in both Line-of-Sight (لوس) and Non-Line-of-Sight (NLOS) شروط, even in complex environments such as urban areas, الغابات, والتضاريس الجبلية. مع integrated PA (مضخم الطاقة) وحدات of 1W or 2W, the system can achieve transmission distances of up to 30 كم لوس و 1.5 كم NLOS, making it a cost-effective yet powerful option for long-range wireless communication.
Compact in design, rugged in structure, and easy to deploy, the COFDM-912T is available as a complete set (الارسال, المتلقي, هوائيات, والكابلات) and supports both CVBS AV input and HDMI output, ensuring broad compatibility with a wide range of cameras and display devices. Whether used for FPV drone video links, بث الحدث المباشر, or covert surveillance operations, this wireless transmission system offers يؤمن, low-latency, and reliable performance in every scenario.
الميزات الرئيسية
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تعديل COFDM المتقدم
Provides robust performance against multipath interference, enabling clear video transmission in both LOS and NLOS environments. -
AES-128 Video Encryption
Built-in secure encryption ensures that your video data is protected against unauthorized access or interception. -
نطاق نقل طويل
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حتى 30 كم لوس (خط البصر) with a 2W power amplifier.
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حتى 1.5 كم NLOS (غير خط البصر) في البيئات الحضرية أو المعوقة.
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Low Latency Video Transmission
End-to-end latency of 200-300 مللي ثانية, suitable for FPV, UAV control, and live monitoring applications. -
Dual Input & الإخراج
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الارسال: CVBS (ل) analog input.
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المتلقي: ل (CVBS) + HDMI digital output.
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فيديو + Data Downlink
Supports simultaneous نقل الفيديو و transparent UART data downlink, enabling telemetry or sensor data transfer from the transmitter to the receiver. -
Configurable Frequency
Frequency can be modified via a parameter configuration board, supporting custom frequencies within 170-860 ميجا هرتز يتراوح. -
Multiple Modulation & خيارات النطاق الترددي
يدعم كيو بي إس كيه, 16قم, and 64QAM modulation with adjustable bandwidths from 2 ميغاهيرتز إلى 8 ميغاهيرتز. -
مدمج & تصميم خفيف الوزن
Small form factor with rugged aluminum housing for easy integration into UAVs, المركبات, or portable systems. -
Full Set Package
Includes transmitter, المتلقي, هوائيات, والكابلات, ready for immediate deployment.
تحديد
الارسال (كوفدم-912T)
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جهد التشغيل: DC 11V ~ 13V (20W PA requires 24V–28V)
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الاستهلاك الحالي: ≤1.5A @ 12V (2في السلطة الفلسطينية)
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إدخال الفيديو: CVBS composite video (PAL by default, NTSC optional)
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ترميز الفيديو: مبيغ-2 / H.264
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دقة: 720×576 @ ≥4 Mbps stream
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واجهة البيانات: UART one-way transparent transmission
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Baud Rates: 1200 ل 230400 نقطة أساس
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التشفير: AES-128 supported
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رسم خرائط التعديل: QPSK, 16قم, 64قم
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تصحيح الخطأ إلى الأمام (FEC): 1/2, 2/3, 3/4, 5/6, 7/8
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شركات النقل: 2ك
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نطاق التردد: 170-860 ميجا هرتز (قابل للتخصيص; stock 300 ميغاهيرتز & 600 MHz models)
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عرض النطاق: قابل للتعديل 2/3/4/5/6/7/8 ميغاهيرتز
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قوة الإرسال: 1W or 2W (5W/10W/20W optional)
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الأبعاد: 90 × 65 × 22 مم
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السكن: الألومنيوم, المضادة للتآكل, مقاوم للصدمات
المتلقي
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جهد التشغيل: تيار مستمر 12 فولت <0.3أ
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RF Input Range: 170-860 ميجا هرتز
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عرض النطاق: 2–8 MHz adjustable
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مستوى إدخال التردد اللاسلكي: -98 dBm ~ 0 ديسيبل (depending on bandwidth)
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مقاومة الإدخال: 50 أوه (SMA أنثى)
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إزالة التشكيل: COFDM
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Constellation Modes: QPSK, 16قم, 64قم
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خيارات لجنة الانتخابات الفيدرالية: 1/2, 2/3, 3/4, 5/6, 7/8
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Output Video: CVBS (3.5mm AV), HDMI
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دقة: 720×576 @ 6 ميغاهيرتز
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درجة حرارة التشغيل: -20 درجة مئوية ~ +50 درجة مئوية
التطبيقات
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المركبات الجوية بدون طيار (الطائرات بدون طيار / طائرات بدون طيار)
Real-time FPV video streaming from drones to ground stations. Recommended with optional band-pass wave filters for improved anti-interference. -
المركبات الأرضية بدون طيار (في UGV) & الروبوتات
Provides wireless video feedback and telemetry data in complex ground operations. -
حماية & إنفاذ القانون
مثالية ل المراقبة السرية, tactical reconnaissance, and border monitoring, thanks to its compact size and encryption support. -
البث & Live Events
Used in البث الرياضي, outdoor live events, and news reporting to transmit high-quality video over long distances. -
البحرية & Mountainous Environments
Reliable performance in challenging terrains where standard RF systems fail. -
جيش & السلامة العامة
Deployed in field reconnaissance, الاستجابة للطوارئ, and disaster recovery, providing stable video feeds under harsh conditions.
خيارات قابلة للتخصيص
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تخصيص نطاق التردد
Available in 170-860 ميجا هرتز يتراوح, with support for specific customer-requested frequencies such as 260 ميغاهيرتز, 450 ميغاهيرتز, 610 ميغاهيرتز, 970 ميغاهيرتز, 1180 ميغاهيرتز, 1230 ميغاهيرتز, إلخ. -
خيارات مضخم الطاقة
معيار: 1W or 2W.
Optional upgrades: 5W, 10W, 20W for extended range applications. -
Video Input/Output Formats
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بال (تقصير)
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NTSC (optional upon request)
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مدخل اتش دي ام اي (available in higher models)
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Relay Transmission Solutions
Integration with vehicle-mounted or portable relay systems to extend coverage beyond 30 كم. -
خيارات الهوائي
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Omni-directional fiberglass antennas for general use.
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هوائيات اتجاهية ذات مكاسب عالية for maximum range.
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نقل البيانات
يدعم UART telemetry data + فيديو in one system (simplex, downlink only).
Advantages Over Conventional Systems
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Cheaper Yet Longer Range – Compared with traditional analog transmitters or IP mesh systems, COFDM provides استقرار أعلى at a lower cost.
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Strong NLOS Capability – Works effectively in urban blocks, الغابات, and moving vehicles where other systems fail.
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مدمجة وخفيفة الوزن – Ideal for تكامل الطائرات بدون طيار, with transmitter weights as low as 154 جرام.
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Integrated Signal Monitoring – Receiver’s built-in screen displays signal strength, helping users adjust antenna positioning for optimal performance.
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Expandable Solutions – From small portable UAV sets ل high-power vehicle relay systems, scalable to meet any professional need.
أمان & Usage Warnings
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Always connect the antenna before powering on the transmitter to avoid damaging the PA (مضخم الطاقة).
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Place antennas in elevated and unobstructed locations for the best performance.
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Maintain proper antenna height difference between transmitter and receiver for improved link stability.
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Do not block antennas during operation to prevent signal attenuation.
تتضمن الحزمة
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1 × COFDM Transmitter
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1 × COFDM Receiver
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2 × Antennas (تكساس & الجانب آر إكس)
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1 × Accessories Cable Set

خاتمة
The COFDM-912T Wireless Video Transmitter & Receiver system combines long-distance performance, robust encryption, and flexible customization, making it an ideal solution for UAV, حماية, and broadcasting applications. إنه حجم صغير, الكمون المنخفض, and reliable COFDM modulation set it apart from conventional video transmission systems, ensuring professional users get a cost-effective, مستقر, and secure wireless link in both LOS and NLOS conditions.
With multiple frequency, قوة, and input/output options available, the COFDM-912T can be tailored to meet diverse application requirements. Whether you need 10 km for drone FPV, 30 km for air-to-ground video, أو relay systems for ultra-long range, this product delivers performance that is both cheaper and longer-lasting.
التعليمات
س1: How does Point-to-Multipoint (P2MP) work, and how many receivers can connect to one transmitter?
أ: Our COFDM video transmission system operates in a broadcast mode, similar to a TV broadcasting station. One transmitter can send the same wireless signal to multiple receivers simultaneously.
As long as the receivers are within the effective signal coverage area and configured to the same frequency and parameters, they can all receive the signal at the same time.
من الناحية النظرية, there is no fixed limit to the number of receivers; لذلك, the maximum number cannot be precisely specified and depends on practical deployment conditions.
Q2: Is the IVCAN COFDM system compatible with third-party or existing transmitters and receivers?
أ: Compatibility depends on multiple technical factors, بما في ذلك التردد, عرض النطاق الترددي, تعديل, and transmission protocol. Without detailed specifications or actual testing, compatibility with third-party or existing equipment cannot be confirmed. To ensure accurate results, compatibility testing is required before we can provide a definitive answer.
Customers are welcome to share detailed technical information about their existing devices so we can evaluate potential compatibility or recommend appropriate testing solutions.






iVcan.com –
I recently purchased the COFDM Wireless Video Transmitter and Receiver for my FPV drone, وأنا معجب للغاية بأدائه. The signal is incredibly stable even in challenging urban and NLOS environments, and the low latency ensures real-time video transmission without noticeable lag. Setting up the transmitter and receiver was straightforward, and the AES128 encryption gives me peace of mind knowing my video feed is secure. The full set, including antennas and cables, worked flawlessly out of the box, and the video quality is consistently clear and reliable. Highly recommended for professional drone enthusiasts.