What is one of the primary causes of Radio Frequency Interference (RFI)?

One of the primary causes of Radio Frequency Interference (RFI) is grounding. Proper grounding is essential for minimizing RFI because it helps to create a stable reference point for signals and reduces electromagnetic noise that can affect radio communications. When grounding is inadequate or improperly implemented, it can lead to the induction of unwanted signals into the communication system. This interference can manifest in various ways, such as noise, distortion, or even loss of signal clarity, all of which can severely impact the overall performance of radio communication systems.

Factors like antenna orientation, transmitter output, and receiver sensitivity can also influence the quality of radio communications, but they do not primarily address the aspect of interference from unwanted signals created by grounding issues. Grounding effectively mitigates these risks, making it a critical aspect of designing and maintaining reliable RF systems.