Speak the Language: The Complete FPV Glossary
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Speak the Language: The Complete FPV Glossary
Power System
- LiPo (Lithium Polymer): The standard battery type. High power output but fragile.
- Li-Ion (Lithium Ion): Cylindrical cells (like 18650). Lower power but higher capacity. Great for long-range cruising.
- BEC (Battery Eliminator Circuit): Regulates voltage. It turns your main battery voltage (e.g., 25V) into 5V to power your GPS or Receiver.
- C-Rating: A measure of how fast a battery can discharge energy. Higher C (e.g., 100C) = more punch.
Control System
- UART (Universal Asynchronous Receiver-Transmitter): Hardware serial ports on the Flight Controller used to connect peripherals.
- RSSI (Received Signal Strength Indicator): A number telling you how strong your radio link is.
- LQ (Link Quality): A better measure than RSSI for digital protocols like ELRS. It tells you what percentage of data packets are actually arriving.
Video System
- Analog: The traditional video system. Zero latency, static interference, cheap.
- HD Digital (Walksnail/DJI): High definition video. Variable latency, pixelated breakup, expensive.
- OSD (On-Screen Display): The text overlay in your goggles showing battery voltage, speed, and height.