How often should VOR receiver checks be conducted?

VOR receiver checks should be conducted every 30 calendar days to ensure navigational accuracy for pilots relying on VOR systems for flight operations. Regular checks are essential for maintaining the integrity of the navigation equipment, as they help identify any discrepancies or malfunctions that could affect safety.

By performing these checks every 30 days, pilots and maintenance personnel can ensure that the VOR signals are reliable and that the equipment is functioning correctly. This frequency is established in regulations to minimize the risk of reliance on outdated or inaccurate navigation data, which is crucial for safe flight operations, especially in environments where precise navigation is necessary.

Options suggesting longer intervals, such as 60, 90, or even longer periods, may not adequately address the potential for drift or failure of VOR equipment, which can occur over time. Consistent checks every 30 days are designed to mitigate those risks effectively.