What type of environment does radio frequency interference most commonly occur in?

Radio frequency interference (RFI) most commonly occurs in urban and industrial settings due to the high concentration of electronic devices and communication systems operating within those environments. Urban areas typically host a multitude of sources that emit radio signals, including cell towers, broadcasting stations, wireless networks, and a vast array of consumer electronics. The proximity of these devices can lead to overlapping frequencies and signal congestion, creating an environment where interference is more likely to occur.

In contrast, quiet rural areas, suburban communities, and remote locations usually have fewer electronic devices operating simultaneously. This reduced density of potential interference sources means that RFI is less prevalent in those settings. Thus, the bustling nature of urban and industrial locations, coupled with their diverse array of radio frequency sources, makes them the most common environments for RFI to manifest.