Tani odbiornik nadajnika wideo SD CVBS AV dla dronów FPV

Tani odbiornik nadajnika wideo SD CVBS AV dla dronów FPV

Bezprzewodowy nadajnik wideo COFDM & Receiver – Long-Range, Bezpieczny, Low-Latency

Wstęp

The COFDM-912T Wireless Video Transmitter and Receiver system is a professional-grade solution designed for dalekiego zasięgu, real-time video and data transmission. Zbudowany na poziomie zaawansowanym COFDM (Kodowane multipleksowanie z ortogonalnym podziałem częstotliwości) modulation technology and high-performance MPEG-2/H.264 video compression, ten system zapewnia stabilny, interference-resistant, and encrypted digital video links for UAVs, w UGV, monitorowanie bezpieczeństwa, rozpoznanie wojskowe, transmisja na żywo, and other demanding applications.

Unlike conventional analog systems, COFDM technology ensures reliable video quality in both Line-of-Sight (LOS) and Non-Line-of-Sight (NLOS) warunki, even in complex environments such as urban areas, lasy, and mountainous terrain. Z integrated PA (Wzmacniacz mocy) moduły of 1W or 2W, the system can achieve transmission distances of up to 30 km LOS i 1.5 km 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 (nadajnik, odbiornik, anteny, i kable) i wspiera 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, transmisja wydarzeń na żywo, or covert surveillance operations, this wireless transmission system offers bezpieczny, niskie opóźnienia, and reliable performance in every scenario.

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Kluczowe cechy

• Advanced COFDM Modulation
  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.

• Long Transmission Range

  • Aż do 30 km LOS (Linia wzroku) with a 2W power amplifier.

  • Aż do 1.5 km NLOS (Brak zasięgu wzroku) w środowisku miejskim lub z przeszkodami.

• Low Latency Video Transmission
  End-to-end latency of 200–300 ms, suitable for FPV, UAV control, and live monitoring applications.

• Dual Input & Wyjście

  • Nadajnik: CVBS (Z) analog input.

  • Odbiornik: Z (CVBS) + HDMI digital output.

• Wideo + Data Downlink
  Supports simultaneous transmisja wideo i transparent UART data downlink, enabling telemetry or sensor data transfer from the transmitter to the receiver.

• Configurable Frequency
  Frequency can be modified via a płyta konfiguracji parametrów, supporting custom frequencies within 170–860 MHz zakres.

• Multiple Modulation & Opcje przepustowości
  Supports QPSK, 16QAM, and 64QAM modulation with adjustable bandwidths from 2 MHz do 8 MHz.

• Kompaktowy & Lekka konstrukcja
  Small form factor with rugged aluminum housing for easy integration into UAVs, pojazdy, or portable systems.

• Full Set Package
  Includes transmitter, odbiornik, anteny, i kable, ready for immediate deployment.

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specyfikacje

Nadajnik (COFDM-912T)

• Napięcie robocze: DC 11V ~ 13V (20W PA requires 24V–28V)

• Bieżące zużycie: ≤1.5A @ 12V (2W PA)

• Wejście wideo: CVBS composite video (PAL by default, NTSC optional)

• Kodowanie wideo: MPEG-2 / H.264

• Rozkład: 720×576 @ ≥4 Mbps stream

• Interfejs danych: UART one-way transparent transmission

• Baud Rates: 1200 do 230400 bps

• Szyfrowanie: AES-128 supported

• Modulation Mapping: QPSK, 16QAM, 64QAM

• Korekta błędów w przód (FEC): 1/2, 2/3, 3/4, 5/6, 7/8

• Przewoźnicy: 2K

• Zakres częstotliwości: 170–860 MHz (konfigurowalny; stock 300 MHz & 600 MHz models)

• Pasmo: Nastawny 2/3/4/5/6/7/8 MHz

• Moc transmisji: 1W or 2W (5W/10W/20W optional)

• Wymiary: 90 × 65 × 22 mm

• Mieszkania: Aluminium, antykorozyjne, odporny na wstrząsy

Odbiornik

• Napięcie robocze: Napięcie stałe 12 V <0.3ZA

• RF Input Range: 170–860 MHz

• Pasmo: 2–8 MHz z możliwością regulacji

• Poziom wejściowy RF: -98 dBm ~ 0 dBm (depending on bandwidth)

• Impedancja wejściowa: 50 Oh (Kobieta SMA)

• Demodulacja: COFDM

• Constellation Modes: QPSK, 16QAM, 64QAM

• Opcje FEC: 1/2, 2/3, 3/4, 5/6, 7/8

• Output Video: CVBS (3.5mm AV), HDMI

• Rozkład: 720×576 @ 6 MHz

• Temperatura pracy: -20 °C ~ +50 °C

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Aplikacje

• Bezzałogowe Statki Powietrzne (UAV / Drony)
  Real-time FPV video streaming from drones to ground stations. Recommended with optional band-pass wave filters for improved anti-interference.

• Bezzałogowe pojazdy naziemne (w UGV) & Robotyka
  Provides wireless video feedback and telemetry data in complex ground operations.

• Bezpieczeństwo & Egzekwowanie prawa
  Idealny dla tajny monitoring, tactical reconnaissance, and border monitoring, thanks to its compact size and encryption support.

• Nadawczy & Wydarzenia na żywo
  Używany w transmisje sportowe, outdoor live events, and news reporting to transmit high-quality video over long distances.

• Morski & Mountainous Environments
  Reliable performance in challenging terrains where standard RF systems fail.

• Wojskowy & Bezpieczeństwo publiczne
  Deployed in field reconnaissance, reakcja awaryjna, and disaster recovery, providing stable video feeds under harsh conditions.

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Konfigurowalne opcje

• Dostosowanie pasma częstotliwości
  Available in 170–860 MHz zakres, with support for specific customer-requested frequencies such as 260 MHz, 450 MHz, 610 MHz, 970 MHz, 1180 MHz, 1230 MHz, itp.

• Opcje wzmacniacza mocy
  Standard: 1W or 2W.
  Optional upgrades: 5W, 10W, 20W for extended range applications.

• Video Input/Output Formats

  • KUMPEL (domyślny)

  • NTSC (optional upon request)

  • Wejście HDMI (available in higher models)

• Relay Transmission Solutions
  Integration with vehicle-mounted or portable relay systems to extend coverage beyond 30 km.

• Opcje anteny

  • Omni-directional fiberglass antennas for general use.

  • Anteny kierunkowe o dużym zysku for maximum range.

• Transmisja danych
  Obsługuje UART telemetry data + wideo in one system (simplex, downlink only).

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Advantages Over Conventional Systems

1. Cheaper Yet Longer Range – Compared with traditional analog transmitters or IP mesh systems, COFDM provides wyższa stabilność at a lower cost.

2. Strong NLOS Capability – Works effectively in urban blocks, lasy, and moving vehicles where other systems fail.

3. Kompaktowy i lekki – Ideal for UAV integration, with transmitter weights as low as 154 gramy.

4. Integrated Signal Monitoring – Receiver’s built-in screen displays signal strength, helping users adjust antenna positioning for optimal performance.

5. Expandable Solutions – From small portable UAV sets do high-power vehicle relay systems, scalable to meet any professional need.

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Bezpieczeństwo & Usage Warnings

• Always connect the antenna before powering on the transmitter to avoid damaging the PA (Wzmacniacz mocy).

• Place antennas in elevated and unobstructed locations for the best performance.

• Maintain proper antenna height difference between transmitter and receiver for improved link stability.

• Do not block antennas during operation to prevent signal attenuation.

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Package Includes

• 1 × COFDM Transmitter

• 1 × COFDM Receiver

• 2 × Antennas (TX & RX side)

• 1 × Accessories Cable Set

 

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Wniosek

The COFDM-912T Wireless Video Transmitter & Receiver system combines long-distance performance, robust encryption, and flexible customization, making it an ideal solution for UAV, bezpieczeństwo, and broadcasting applications. Jego mały rozmiar, niskie opóźnienie, and reliable COFDM modulation set it apart from conventional video transmission systems, ensuring professional users get a cost-effective, stabilny, and secure wireless link in both LOS and NLOS conditions.

With multiple frequency, moc, 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, lub relay systems for ultra-long range, this product delivers performance that is both cheaper and longer-lasting.

FAQ

Pytanie 1: How does Point-to-Multipoint (P2MP) work, and how many receivers can connect to one transmitter?

ZA: 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.
In theory, there is no fixed limit to the number of receivers; W związku z tym, the maximum number cannot be precisely specified and depends on practical deployment conditions.

Pytanie 2: Is the IVCAN COFDM system compatible with third-party or existing transmitters and receivers?

ZA: Compatibility depends on multiple technical factors, including frequency, pasmo, modulacja, 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.