When testing radar in stationary mode, how many forks should be used at a time?

Using one fork when testing radar in stationary mode is correct because it focuses on a single target signal, allowing for a clearer and more accurate measurement. This method helps operators determine the radar system's ability to detect speed without interference from multiple signals. Utilizing one fork simplifies the testing process and ensures that any readings obtained reflect the radar's performance with a single distinct object. It also minimizes potential confusion that could arise from multiple signals, which could compromise accuracy and reliability in speed detection. The practice of using one fork is aligned with standardized testing protocols to ensure consistent and reliable results when assessing radar equipment.