1. Введение
The GalaxyElec RAD VTX 5.8G 1.6W is a high-power video transmitter designed for FPV long-range drone applications. It features a maximum output power of 1600mW with five adjustable power levels: PIT mode, 25mW, 200mW, 600mW, and 1600mW. The VTX incorporates a double-layer PCB design to minimize interference and enhance heat dissipation. It includes a built-in microphone, supports a wide input voltage range of 7-36V (2-8S battery), utilizes an MMCX antenna connector, and has a 30.5x30.5mm mounting hole.

Рисунок 1: Болееview of the GalaxyElec RAD VTX 5.8G 1.6W Video Transmitter.
2. Особенности
- 1600mW maximum output power for long-range flight stability.
- Five adjustable power levels: PIT mode, 25mW, 200mW, 600mW, 1600mW.
- Double-layer PCB structure for improved cooling and reduced signal interference.
- Integrated temperature control protection to prevent overheating damage.
- Широкий входной объемtage support: DC 7-36V (compatible with 2-8S batteries).
- IRC трamp control protocol for OSD parameter adjustment.
- Built-in microphone for real-time audio transmission.
- Three regional frequency tables: Universal (40CH), American FCC (37CH), European EU (26CH).
- Две функциональные кнопки и три индикаторных лампочки для удобства управления.
- Standard 30.5x30.5mm (M3) mounting hole.
3. Технические характеристики
- Модель: Радиопередатчик RAD VTX 5.8G 1.6W
- Vol входtage: DC 7-36V (батарея 2-8S)
- Output (for Camera): 5 В при 600 мА
- Входное сопротивление: 75 Ом
- Протокол: IRC трamp
- Антенный интерфейс: ММСХ
- Выходная мощность: PIT mode / 25mW / 200mW / 600mW / 1600mW
- Таблицы частот: Universal (40 каналов), American FCC (37 каналов), European EU (26 каналов)
- Формат видео: PAL/NTSC
- Микрофон: Встроенный
- Размеры: 36×36.5×5.5мм
- Масса: 9.7 г (без кабеля)
- Монтажное отверстие: 30x30 мм (M3)

Figure 2: Physical dimensions of the RAD VTX.
4. Настройка и установка
4.1 Подключение антенны
Connect a 5.8G antenna to the MMCX socket on the VTX. Ensure the antenna is securely attached before powering on the VTX. Operating the VTX without an antenna can cause permanent damage.
4.2 Силовая и сигнальная проводка
Connect the VTX to your flight controller or power distribution board using the GH 1.25 6P connector. Refer to the pinout diagram below for correct connections:
- 7-36 В постоянного тока: Подключитесь к основной батарее.tage (2-8S).
- Земля: Заземление.
- ВИДЕО: Video signal input from your camera.
- IRC-канал: IRC трamp control signal from your flight controller.
- 5VOUT: 5V output for powering a camera (maximum 600mA).

Рисунок 3: Внизу view of the VTX showing pinout for wiring connections.
4.3 Монтаж
Secure the VTX using the 30x30mm (M3) mounting holes. Ensure adequate airflow around the unit for heat dissipation.
4.4 Optional Separation
The VTX features a separable design along a dotted line, allowing for a more compact installation if required. Carefully separate the board along the indicated line as shown in the figures below.

Figure 4: RAD VTX showing the dotted line for optional separation.

Figure 5: The RAD VTX after separation.
5. Инструкция по эксплуатации

Рисунок 6: Вверху view of the VTX with labeled components.
5.1 Включение
After connecting the VTX and antenna, power on your drone. The indicator lights on the VTX will illuminate.
5.2 Регулировка уровня мощности
Используйте Кнопка питания (refer to Figure 6) to cycle through the five available power levels: PIT mode, 25mW, 200mW, 600mW, and 1600mW. The power indicator light will change or blink to indicate the currently selected power level.
5.3 Band and Channel Selection
Используйте Кнопка канала (refer to Figure 6) to cycle through bands and channels. The band and channel indicator lights will display the current selection.
- Короткое нажатие: Changes channels within the current band.
- Длительное нажатие: Changes to the next available band.
5.4 IRC Tramp Контроль
For advanced configuration, connect the IRC pin to your flight controller. You can then use Betaflight OSD or a similar interface to adjust VTX settings, including power, band, and channel, directly from your FPV goggles or ground station.
5.5 Frequency Tables
The VTX supports Universal (40CH), American FCC (37CH), and European EU (26CH) frequency tables. Ensure you select the appropriate frequency table for your region to comply with local regulations.
6. Техническое обслуживание и предупреждения
To ensure optimal performance and longevity of your RAD VTX, observe the following:
- Антенное соединение: Always connect an antenna before powering on the VTX. Operating the VTX without an antenna can cause permanent damage.
- Охлаждение: The VTX generates heat during operation, especially at higher power levels. Provide constant airflow and ensure a well-ventilated environment. Consider installing a cooling fan if operating in enclosed spaces or at maximum power for extended periods.
- Чистота: Keep the VTX free from dust, dirt, and moisture.
- Томtage: Придерживайтесь указанного входного объемаtage range of DC 7-36V. Exceeding this range can damage the unit.
7. Поиск Неисправностей
If you encounter issues with your RAD VTX, consider the following general troubleshooting steps:
- Нет видеосигнала: Check all wiring connections, especially power, ground, and video input. Ensure the antenna is securely connected. Verify that the VTX is powered on and the correct channel/band is selected on both the VTX and your FPV receiver.
- Плохое качество видео: Check for interference sources. Ensure the antenna is not damaged. Verify power supply stability.
- Перегрев: Ensure adequate airflow. Reduce power output if operating in a confined space.
При возникновении постоянных проблем обратитесь к онлайн-сообществам любителей FPV-полетов или к ресурсам поддержки производителя.
8. Гарантия и поддержка
Specific warranty information for the GalaxyElec RAD VTX 5.8G 1.6W is typically provided at the point of purchase or on the manufacturer's official website. For technical support, product updates, or warranty claims, please refer to the contact information provided by your retailer or the GalaxyElec manufacturer.