Final answer:
The tolerance for testing two VOR's on-board equipment refers to the acceptable range of deviation or error in the measurements or readings of the equipment. It is crucial for accurate navigation in aviation and is specified by regulatory authorities and equipment manufacturers. Specialized test equipment is used to measure the accuracy of VOR equipment.
Step-by-step explanation:
The tolerance for testing two VOR's on-board equipment refers to the acceptable range of deviation or error in the measurements or readings of the equipment. This is important because accurate and reliable VOR equipment is crucial for navigation in aviation.
The tolerance for testing is typically specified by regulatory authorities and equipment manufacturers. It may differ depending on the specific equipment and purpose of the test. For example, the tolerance for testing the accuracy of VOR frequency may be expressed in terms of a maximum allowable deviation in hertz.
Measuring the accuracy of VOR equipment involves comparing the equipment's output to a known reference or standard signal. Specialized test equipment, such as signal generators and radio receivers, are used in this process. The test results are then evaluated against the specified tolerance to determine if the equipment meets the required standards.