Лучший модуль радиопередатчика и приемника дрона для телеметрии видеоданных

В Вкан2122 представляет собой компактный, medium-power bidirectional wireless data transmission module designed for reliable long-range communication in complex and interference-prone environments. На основе OFDM TDD wireless communication technology, it delivers strong anti-interference capability, excellent penetration performance, and highly stable data transmission.

Модуль поддерживает multiple transmission modes, включая двухточечный, точка-множество точек, и trunk communication, and enables star network topologies с до 16 узлы in a single network. Thanks to its miniaturized design, низкое энергопотребление, и multiple data interfaces, Vcan2122 is well suited for мобильный, воздушно-капельный, and embedded applications where reliability and flexibility are critical.

В Вкан2122 является by default available in a wideband configuration, operating over a frequency range of 1420–1530 МГц. Within this single continuous band, the module provides up to 110 MHz of selectable frequency range, позволяющий автоматическое переключение частоты with significantly greater flexibility to avoid interference and maintain stable links in complex RF environments.

In addition to the wideband version, optional single-band variants are also available in the following frequency ranges: 806–825.9 MHz, 1427.9–1467.9 MHz, 2401.5–2481.4 MHz. Each optional variant supports single-band operation only.

Under good line-of-sight (ЛОС) air-to-ground conditions, the transmission distance can reach 10-20 км или более, depending on high gain antenna configuration and external power amplifier support.

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Особенности

• Star Networking Capability
  Supports point-to-multipoint communication with up to 16 узлы.

• High Bandwidth Transmission
  Maximum data rate up to 30 Мбит/с @ 20 МГц.

• Flexible Channel Bandwidth
  Поддерживает 3 / 5 / 10 / 20 МГц bandwidth modes.

• Автоматический выбор частоты
  Automatically detects interference and selects the optimal frequency point in real time.

• Multi-System Coexistence
  Multiple Vcan2122 systems can operate simultaneously on fixed frequencies.

• Несколько интерфейсов данных
  Интегрированный двойной 100 Mbps Ethernet ports и ТТЛ / RS232 / СБУС serial interfaces.

• Low Latency
  End-to-end transmission delay ≤ 20 РС.

• Безопасная связь
  Поддерживает Шифрование AES-128.

• Компактный & Легкий дизайн
  Только 35 г, suitable for UAVs and other weight-sensitive platforms.

• Web UI page to configuration the parameter.
  Provide a user-friendly web UI for configuring module parameters. Users can easily manage settings and modify parameters visually through the web page, without the need for complex AT commands or command-line instructions.

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Технические характеристики

System Parameters

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Пропускная способность канала & чувствительность

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Интерфейсы

• Power Interface: XT30, DC 9–15 V

• Антенный интерфейс: IPEX ×2

  • MAIN: Must be connected

  • AUX: Receive diversity only

• Интерфейсы данных:

  • Ethernet: 100 Mbps ×2

  • Серийный: TTL ×2, RS232 ×1, SBUS ×1

Определение интерфейса

Линейный порядок	Имя контакта	Определение интерфейса	Описание интерфейса	Направление сигнала
1	TXP1+	Ethernet 1	Техас+	О
	TXM1-		Техас-	О
	RXP1+		прием +	я
	RXM1-		прием-	я
2	TXP2+	Ethernet 2	Техас+	О
	TXM2-		Техас-	О
	RXP2+		прием +	я
	RXM2-		прием-	я
3	TX1	Последовательный порт 1 ТТЛ	Техас	О
	RX1		прием	я
	GND		земля	О
4	TX2	Последовательный порт 2 ТТЛ	Техас	О
	RX2		прием	я
	GND		земля	О
5	TX3	Последовательный порт 3 RS232	Техас	О
	RX3		прием	я
	GND		земля	О
6	TX4	Последовательный порт 4 СБУС	SBUS-OUT	О
	RX4		SBUS-IN	я
	GND		земля	О
7	PWR	9 ~ 15 В постоянного тока	Мощность положительная	я
	GND		Power negative	я

We can also convert one TTL port to RS422, and additionally, we can add an RS232-to-RS485 converter board to support RS485, which is commonly used for camera PTZ control.

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Status Indicators

Module type	Режим	light status
		PWR	MODE	LAN1 LAN2	РССИ 123
владелец	несинхронизированный	Powered on	red light Powered on	Данные передаются и мигают	Searching
владелец	синхронизированный	Powered on	green light Powered on	Данные передаются и мигают	Proportional to the strength of the received signal
раб	несинхронизированный	Powered on	red light Powered on	Данные передаются и мигают	Searching
раб	синхронизированный	Powered on	green light Powered on	Данные передаются и мигают	Proportional to the strength of the received signal

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When the primary (Владелец, Наземное подразделение, Получатель) and secondary devices (Salve, Воздушный блок, Передатчик) являются not synchronized, тот PWR (мощность) indicators on both devices remain steadily lit. В MODE indicator является красный on the primary device and зеленый on the secondary device. В это время, тот RSSI lights on both devices are in a searching state.

Once the master and slave devices are синхронизированный, тот RSSI lights display the received signal strength for each device. When data is being sent or received over the network, тот LAN1 indicators on both devices light up, в то время как LAN2 indicators blink to indicate network activity.

Приложения

В Вкан2122 is suitable for a wide range of professional wireless data transmission applications, включая:

• БЛА / Drone Data Links

• Пожаротушение & Emergency Communication

• Общественная безопасность & Правоохранительные органы

• Инспекция & Monitoring Systems

• Робототехника & в УГВ

• Temporary Wireless Networks

• Industrial and Environmental Monitoring

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Вопросы-Ответы

вопрос: What are the main and secondary antennas used for in a 1T2R UAV video data module?
А: This module adopts a 1Т2Р (1 Transmit, 2 Получать) архитектура.

• Основная антенна (Primary RF path):
  Responsible for both передача инфекции (Техас) и прием (прием).
  It is connected through a T/R (Transmit/Receive) switch, which routes the RF path either to the power amplifier during transmission or to the receiver chain during reception.
• Secondary antenna (Diversity receive path):
  Used only for reception (RX only).
  It improves link reliability by providing spatial diversity, helping mitigate:
  • Multipath fading
  • Signal blockage (например, drone body shadowing)
  • Orientation-dependent signal loss

Общий, the dual-receive design significantly improves link stability and robustness in mobile UAV scenarios.

вопрос: Can I modify the RF front-end by adding an up/down converter, Пенсильвания, and LNA, and convert the system into a 1T1R architecture?
А: In theory, adding an external frequency conversion stage (up/down conversion) plus Пенсильвания (Усилитель мощности) и ЛНА (Low Noise Amplifier) can be implemented as part of a custom RF front-end. Однако, converting a 1T2R system into 1T1R is generally not recommended for UAV video links. Key impacts of switching to 1T1R:

• Reduced receiver sensitivity: Typically degraded by ~3–5 dB, due to the loss of spatial diversity gain.

• Lower link robustness in motion: UAV environments involve: Rapid movement / Orientation changes / Multipath fading, A single receive chain (1T1R) is more vulnerable to intermittent signal drops.

• Weaker anti-interference and fading resistance: Without dual receive antennas, the system loses diversity combining benefits.

вопрос: What is the maximum OFDM Peak-to-Average Power Ratio (ПАПР) of this wireless video/data telemetry module?
А: The maximum OFDM PAPR of this module is typically: 11.5 дБ. When designing an external RF front-end (such as PA, ЛНА, or frequency converter), sufficient PA back-off and linearity margin should be reserved to avoid signal distortion and spectrum degradation.

вопрос: Does Vcan2122 support video transmission?
Vcan2122 is a wireless data transmission module. Video transmission depends on external IP cameras or video encoders connected via Ethernet.

вопрос: Can this module support IP MESH MANET functionality?
Нет, default module is star networking type. Если вам нужно, we also can do IP MESH MANET (Мобильная одноранговая сеть) fucntion (use CX6702, CX6702 module). В данный момент, we provide it as a finished product rather than as a standalone development module. Please refer to the product image below for your reference. (CX6779-L4H2)

вопрос: Can multiple Vcan2122 systems operate in the same area?
да. Fixed-frequency operation allows multiple systems to coexist with minimal interference.

вопрос: Does one unit support multiple frequency bands?
Нет. Each Vcan2122 unit supports one single frequency band only.

вопрос: Is diversity reception supported?
да. The AUX antenna provides receive diversity to improve link reliability.

вопрос: What is the typical latency?
The typical end-to-end transmission delay is ≤20 ms.