What is the primary use of radar tuning forks during tests?

The primary use of radar tuning forks during tests is to ensure accuracy. Radar tuning forks are precision tools that produce a specific frequency when struck, and this frequency can be used to check the calibration of radar equipment. By using these tuning forks, operators can verify that the radar system is properly tuned to the correct frequency necessary for accurate speed detection. This process is essential in maintaining the integrity and reliability of speed enforcement measures, as it ensures that the radar is functioning as intended and is providing accurate speed readings of vehicles.

The tuning forks help in validating the calibration to confirm that the radar unit is tuned to the expected frequencies for specific speed measurements, thereby directly impacting the overall precision of the radar system used in law enforcement.