AviMet® FAA Certified Runway Visual Range System (RVR)

The Vaisala AviMet® PC-Based Runway Visual Range System (RVR) is the only FAA approved RVR system. It provides fully automated runway visual range assessment and reporting for airports.


The FAA-approved runway visual range (RVR) system utilizes measurements from the FS11 Visibility Sensor, the LM21 Background Luminance sensor, and the newly developed Runway Light Intensity Monitor (RLIM), which determines the intensity settings of the runway lights. This combined sensor system is integrated with a Data Processing Unit (DPU) and provides critical RVR information to support precision landing and takeoff operations in the National Airspace System (NAS)

The only FAA-approved, PC-based RVR system for U.S. airports
Compatible with CAT I, II or III airports
Intelligent LRU design and diagnostics offers high MTBF and low MTTR
Flexible and scalable to meet any airports’ configuration needs
Low periodic maintenance requirements
Conforms to all FAA RVR specifications and requirements
May be co-located with an existing NG RVR system
Multiple sensor interface alternatives such as modem, fiber optic or radio data links
Part of Vaisala AviMet® technology platform
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Vaisala Visibility Sensor FS11
provides accurate and reliable measurements in all weather conditions, using forward scatter measurements made with a near infrared LED light source. As a result of cooperation between the FAA and Vaisala, the FS11’s performance has been optimized for RVR applications. The FS11 incorporates extensive internal diagnostics and comes equipped with high-power heaters to prevent snow accumulation and dew formation, and also includes a proven window contamination compensation algorithm.
Vaisala Ambient Light Sensor LM21
accurately measures total ambient light and raises background luminance measurement to a new level of reliability. It comes equipped with intelligent monitoring and contamination compensation features. Window, hood and electronic heaters ensure reliable measurements in all weather conditions.
Runway Light Intensity Monitor (RLIM)
is an essential part of the RVR system. It accurately measures and determines the current flowing through the runway edge and centerline light circuits. This information is used to determine the intensity settings of the runway lights. Each Vaisala RLIM unit can accept input from up to eight current sensors.
Controller Display (CD)
is designed to exceed FAA’s extensive human engineering requirements in a busy ATCT environment. The display is a touch screen design with easy user configuration and diagnostics tools. The displays report touchdown, midpoint and rollout zone RVR, and edge and centerline runway light step settings for up to three user-selected runways. LVAT limits for each zone can be selected from a touch screen menu.
Data Processing Unit (DPU)
accepts and integrates data from up to 30 Visibility Sensors, two Ambient Light Sensors, 10 Runway Light Intensity Monitors and supports hundreds of Controller Displays. The high reliability of the DPU is achieved by using redundant server-grade computers and mirrored data storage.

Key Benefits

The only FAA approved RVR system
In addition to quality control and high system requirements of Vaisala, the AviMet® FAA RVR system conforms to the toughest specifications and requirements of aviation industry; FAA. You can be sure that the system fulfils your and FAA requirements.
Part of Vaisala AviMet® technology platform
Being part of the Vaisala AviMet® platforms ensures that you benefit from the high performance, reliability and experience of the most widely used AWOS system of the industry; the Vaisala AviMet®
Proven performance and credibility
Based on over 40 years of experience and excellence in aviation business and includes field instrumentation / sensors specially designed for aviation purposes. All Vaisala systems and reports for aviation weather observation conform to FAA, ICAO and as well as WMO standards and recommendations.