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Answers and Guides

How to Use a Multimeter to Test an FPV Drone
To test an FPV drone with a multimeter, you mainly need three modes: continuity (beep) to check for shorts and broken connections…
RadioMaster ER12 vs ER16 vs ER3 Pro: Which Gemini-X PWM Receiver Fits Your Build?
The three receivers serve different roles rather than competing directly: the ER12 and ER16 are Gemini-X PWM receivers aimed at R…
How 5.8GHz FPV Channels and Frequencies Work
5.8GHz FPV video runs on a set of predefined channels, each tied to a specific frequency in MHz. To get a working link, your VTX …
What Should Beginners Learn First When Getting Into FPV Drones?
Start with the electronics basics and a cheap multimeter, not the aircraft. Oscar Liang's FPV site is built around exactly this o…
What Oscar Liang's Website Is About
Oscar Liang (oscarliang.com) is a blog for FPV drone pilots and RC hobbyists, built around two things: practical tutorials and ha…