What is the increment measurement for RVR when values are between 300 and 1199 feet?

In aviation, Runway Visual Range (RVR) is a critical measurement that indicates the distance a pilot can see down the runway. The increment for RVR measurements depends on the visibility levels defined in aviation standards. For RVR values between 300 and 1199 feet, the increments are set at 100 feet. This allows for more precise reporting of visibility conditions, which can be vital for safe takeoff and landing operations in low-visibility scenarios.

This 100-foot increment is established in order to provide a balance between usability for pilots and accuracy in reporting. Smaller increments could lead to an overload of information, while larger increments might render the visibility reporting less useful for flight operations. Therefore, measuring in 100-foot increments between 300 and 1199 feet enhances both safety and operational efficiency in challenging visibility conditions.