How to Configure HD Video Transmission Parameters

CoreWing1/1/25About 1 minardupilotArduPilot数字图传HDZeroDJIWalksnailRunCamOSD 配置

1. Principle

The HD VTX system is an integral part of fixed-wing and multi-rotor FPV flight, capable of transmitting flight footage to FPV goggles or ground stations in a high-quality, low-latency manner.
HD VTX systems from different brands (such as DJI O3/Vista, RunCam Link, Walksnail Avatar) have different configurations in ArduPilot firmware, requiring correct serial port, protocol, and OSD settings to ensure normal operation.

2. Equipment Preparation

1) Flight Controller: Any of the CoreWing F405 WING V2/CoreWing F405 WING MINI V2 flight controllers applies to this tutorial.
2) HD VTX Module: DJI O4/O3, Caddx Vista, RunCam Link, Walksnail Avatar, HDzero
3) FPV Goggles: DJI Goggles 2, DJI V2, Avatar VRX, HDzero
4) Ground Station: Mission Planner ground station.

3. Specific Operations

3.1 Parameter Setting Example

Connect the flight controller to the ground station.
Refer to the following steps to modify parameters.

3.2 Specific Parameter Settings

The following parameters apply to SpeedyBee F405 WING APP / SpeedyBee F405 WING MINI flight controllers:
The following parameters apply to CoreWing F405 WING V2:

3.3 Result Verification

1. Connect the flight controller and power it on, open FPV goggles or the ground station, and check if OSD displays normally.
2. If OSD data is missing:

Ensure OSD_TYPE option matches your VTX device.
Check if SERIALX_PROTOCOL is set correctly to ensure the correct VTX communication protocol is used.
3. If OSD displays garbled text or is lost:
Try restarting the flight controller to ensure the MSP data stream is working properly.