Knowledge Base

Fibre optic FPV drones use a physical cable instead of radio signals, making their video feed completely immune to jamming. Learn how they work and...

Compare FPV goggle options for 2026 including FatShark, DJI, Walksnail, and HDZero. Find the right pair for your flying style and budget.

Drone current sensors measure amp draw for accurate OSD battery readings. Learn the difference between built-in ADC sensors and external Hall effect sensors, and when...

Your FPV drone wont arm? This troubleshooting guide covers the most common reasons Betaflight and iNav block arming, from USB connections to receiver issues.

Diagnose ESC problems in FPV drones: overheating, stuttering, beeping errors, and power failures. Covers firmware settings, MOSFET testing, and when to replace.

Diagnose and fix common LiPo battery issues in FPV drones. Covers voltage sag, puffed cells, brownouts, charging faults, and storage best practices.

Diagnose and fix common FPV motor problems including motors not spinning, desync at full throttle, stuttering, and uneven thrust. Covers ESC checks, propeller issues, and...

Diagnose and fix common FPV video signal issues including static, no picture, interference, and signal breakup. Covers VTX settings, antenna problems, and frequency management.

Built-in ADC current sensors on flight controllers have 10-20% error. External Hall effect sensors offer 1-2% accuracy for reliable OSD battery monitoring.

How to calibrate ESCs in Betaflight and ArduPilot. Covers Motors tab calibration, radio setup, and troubleshooting uneven motor performance.

Compare RFdesign telemetry modems: 868x, 868ux, 900x, and 900ux. Find out which long-range drone radio is right for your build.

Learn how to build a complete long-range drone data link using RFdesign telemetry modems and TXMOD for reliable control and telemetry beyond 15km.