Overview
The DarwinFPV HULK is a 5.8G 40CH FPV video transmitter (VTX) designed with an aluminum alloy potting process and an IP67 protection level for waterproof and dustproof performance. It supports the SmartAudio protocol, provides 25mW/200mW/400mW/600mW adjustable transmitting power, uses an MMCX antenna connector, and fits a 30.5mm x 30.5mm mounting pattern.
Key Features
- Aluminum alloy sealed/potted structure with high thermal conductivity silicone gel inside for heat dissipation
- IP67 waterproof and dustproof protection level for all-weather use
- SmartAudio protocol support
- Adjustable output power: 25mW / 200mW / 400mW / 600mW
- MMCX antenna connector
- 30.5mm x 30.5mm mounting hole spacing
Specifications
| Model | HULK VTX |
| Frequency | 5.8G 40CH |
| Transmitting Power | 25mW/200mW/400mW/600mW (Adjustable) |
| Power Supply | DC 7-30V |
| Weight | 15.9g (Antenna Not Included) |
| Center Distance of Mounting Holes | 30.5mm x 30.5mm |
| Size | 37.6mm x 37.6mm x 6.6mm |
| Hole Diameter | Ø3.0mm x4 |
| Additional Drawing Dimension | 26.5mm |
What’s Included
- 1 x HULK VTX
- 1 x Spare Cable
- 7 x Screws
- 1 x Sticker
Applications
- 5.8GHz analog FPV builds requiring a 30.5mm x 30.5mm mounting pattern
- Installations where IP67 sealing and improved heat dissipation are required
For setup or wiring assistance, contact support@rcdrone.top or visit https://rcdrone.top/.
Video
Notice
- Seawater is highly corrosive; clean with fresh water and dry immediately if the drone touches seawater.
- Confirm the VTX antenna is installed before powering on; otherwise the device may be burnt.
- Strictly follow the input voltage range of 7-30V; otherwise it may be burnt.
- Use an antenna with better standing wave and gain to obtain longer transmission distance.
- During operation, the surface may reach high temperature; do not touch to avoid burns.
- Prevent static electricity during transportation and use.
Details

The sealed aluminum-alloy housing is potted with high-thermal-conductivity silicone to help manage heat in demanding builds.


A compact 37.6 × 37.6 × 6.6 mm footprint with Ø3.0 mm holes fits standard 30.5 × 30.5 mm mounting patterns.
