An unstable hover may indicate an issue with which component?

An unstable hover can be a significant indication of issues with the LiPo battery, as the power supply directly affects the performance of the drone. If the battery is not providing sufficient voltage or current, it can cause erratic behavior, including an inability to maintain a steady height. The LiPo battery's state of charge can influence the overall responsiveness and stability of the aircraft during flight. An unstable battery can lead to fluctuations in power delivery, resulting in the drone struggling to maintain a stable hover, which is crucial for precise operations.

The other components mentioned can affect the drone's performance, but they are less directly tied to the fundamental power supply issues that would most likely cause instability while hovering. For example, issues with the remote controller transmitter or the RPAS receiver might result in communication problems rather than an unstable hover, while a malfunctioning Inertia Measurement Unit could affect orientation or navigation but not necessarily the power needed for stable flight.