Signal Multi-Path is best described as:

Signal multi-path refers to the phenomenon where a GPS signal reaches the receiver after being reflected off various surfaces, such as buildings, trees, or other obstacles. This reflected signal can create multiple paths for the same wave to travel, which can lead to inaccuracies in the position calculations made by the GPS receiver. The GPS receiver processes these signals to determine its location based on the time it takes for the signal to arrive; however, if multiple signals arrive via different paths, it can confuse the receiver and result in errors in positioning.

Understanding signal multi-path is crucial for remote pilots, as it can affect the reliability and accuracy of navigational information in their operations. Measures such as understanding the environment where the flight will take place and reducing potential obstacles can help mitigate the impact of multi-path effects.