AWOS Sensor
Sensors for wind, visibility, temperature, pressure, humidity and other parameters per the selected weather-system configuration.
View DetailsClear, continuously updated airport meteorological information
Wind and Visibility Display systems present airport meteorological information to operational, maintenance and airfield personnel. The display can receive data from an AWOS, weather processor, visibility sensor, RVR system or other approved source and show selected parameters in an easy-to-read format.
Wind and Visibility Display systems provide clear, continuously updated presentation of airport meteorological information for operational, maintenance and airfield personnel.
Configurations are selected according to the required meteorological parameters, viewing distance, installation environment, communication interface and airport system architecture.
The system can be used as a standalone local display or as part of a wider airport weather-monitoring and information network.
Select the configuration according to the intended users, viewing distance, available data sources and operational requirements.
Where connected to an RVR system:
Depending on system architecture, the display may also show:
The exact parameters are determined by the connected meteorological system and project requirements.
AWOS Sensors → Weather Processor → Wind & Visibility Display
RVR / Transmissometer → RVR Processor → Wind & Visibility Display
AWOS + RVR + Meteorological Systems → Data/Interface Layer → Display System
The exact architecture depends on the airport's existing equipment and communication infrastructure.
| Parameter | Typical Configuration |
|---|---|
| Primary function | Visual presentation of airport meteorological information |
| Display type | Industrial / operational display, configuration dependent |
| Display size | Selected according to viewing distance and application |
| Display technology | LED/LCD or other approved technology, model dependent |
| Displayed parameters | Wind, visibility, RVR and other configured meteorological data |
| Wind data | Direction, speed and gust where available |
| Visibility data | Visibility value and status where available |
| RVR data | RVR value and measurement location where configured |
| Data source | AWOS, weather processor, RVR processor or approved system |
| Communication | Ethernet, serial or other supported interface |
| Power supply | According to selected display configuration |
| Mounting | Wall, panel, console, rack or other project-specific arrangement |
| Environmental rating | Selected according to installation location |
| Operating mode | Continuous monitoring |
| Status indication | Data, communication and system status where supported |
| Dimensions | Model and screen-size dependent |
| Weight | Model dependent |
Note: Exact display size, resolution, brightness, viewing angle, communication protocol, power consumption, environmental rating, dimensions and mounting arrangement should be confirmed against the selected equipment's current technical documentation.
An immediately visible representation of current wind conditions. Depending on source data:
May be numerical, graphical or a combination.
From an approved airport visibility sensor or weather-processing system:
Where there are multiple measurement locations, the display can identify the corresponding point.
An operational display interface for RVR information where the architecture supports it:
The RVR calculation remains the responsibility of the approved RVR processing architecture; the display is the visual presentation interface. Where an RVR system has more than one measuring position (touchdown zone, mid-point, stop-end), label each position, and show values beyond the reportable range (above the maximum or below the minimum) as the source system and Annex 3 reporting conventions require rather than as a plain number.
Confirm display units and averaging periods with the source system; wind is normally shown in knots or m/s, and RVR and visibility in metres. Displays used by the meteorological office and air traffic services for the same parameter should be fed from the same sensors so that all users see matching values. Wind direction on local and ATS displays is normally referenced to magnetic north, whereas METAR/SPECI reports use true north (ICAO Annex 3), and averaging periods also differ (typically 2 minutes for local reports, 10 minutes for METAR); label the reference and averaging period on the display. A display does not replace the wind direction indicator required at the aerodrome by Annex 14, Volume I (§5.1.1).
Select according to the communication method used by the source system:
Confirm the exact protocol with the AWOS, RVR processor, weather processor or other source equipment. For retrofits, identify existing protocols before selection.
Networked displays can form part of an airport meteorological information infrastructure. Design considerations:
Coordinate with the airport IT and communications team.
The mounting arrangement should provide suitable viewing angle, accessibility, cable routing, ventilation and maintenance clearance.
Display equipment in airport environments may be exposed to:
Choose an environmental rating appropriate to the location. Indoor control-room installations generally differ from outdoor or semi-exposed airfield installations.
Provide a suitable, protected power supply. Considerations:
Requirements are model dependent and confirmed during technical selection.
Status information should be clearly differentiated from actual meteorological measurements to avoid misinterpretation by operational personnel.
| Symptom | Possible Cause | Recommended Action |
|---|---|---|
| Display is blank | Power supply failure | Check power input and protection |
| No meteorological data | Communication failure | Check source system and communication link |
| Wind data unavailable | AWOS/wind sensor issue | Check sensor and weather processor |
| Visibility unavailable | Visibility sensor or processor fault | Check visibility system |
| RVR unavailable | RVR processor/interface fault | Check RVR system and data connection |
| Incorrect displayed values | Data mapping/configuration issue | Verify source data and interface configuration |
| Intermittent data | Network or cable problem | Inspect communication infrastructure |
| Alarm indication | Source or communication fault | Review system status and diagnostics |
| Display difficult to read | Brightness, display or environmental issue | Check display settings and equipment condition |
Wind and Visibility Displays can be used where an existing display system is obsolete or incompatible with new weather equipment.
Where practical, the display should be selected to integrate with existing meteorological infrastructure without unnecessary replacement of functioning field sensors.
Please confirm:
Integrate according to the requirements applicable to the airport's meteorological and operational information systems. References may include:
Confirm the applicable edition and project-specific requirements during engineering and procurement.
We support airport meteorological display projects with configurations selected around the actual airport information architecture. Support can include:
The objective is clear, reliable presentation of the meteorological information required by airport operational and maintenance personnel.
It presents continuously updated airport meteorological information to operational, maintenance and airfield personnel. It can receive data from an AWOS, weather processor, visibility sensor, RVR system or other approved source, and can be used as a standalone local display or as part of a wider airport weather network.
Wind direction, speed, gust and variable wind information, visibility values and status, and RVR with runway identifier and measurement position where connected to an RVR system. Depending on the architecture it may also show temperature, dew point, relative humidity, pressure, present weather, cloud information, sensor status and alarms. The exact parameters are determined by the connected meteorological system.
No. The RVR calculation remains the responsibility of the approved RVR processing architecture, and the display is the visual presentation interface. The accuracy and validity of displayed information depend on the connected sensors, weather processor, RVR system and communication interface.
Typical chains are AWOS sensors, weather processor and display, or RVR transmissometer, RVR processor and display. Interfaces can include Ethernet, TCP/IP, RS-232, RS-422 and RS-485 or other manufacturer-specific digital interfaces. Confirm the exact protocol with the source equipment, and for retrofits identify existing protocols before selection.
Wind direction on local and ATS displays is normally referenced to magnetic north, whereas METAR and SPECI reports use true north (ICAO Annex 3). Averaging periods also differ, typically 2 minutes for local reports and 10 minutes for METAR, so label the reference and averaging period on the display.
No. A display does not replace the wind direction indicator required at the aerodrome by Annex 14, Volume I (paragraph 5.1.1).
Wind is normally shown in knots or m/s, and RVR and visibility in metres. Where an RVR system has more than one measuring position (touchdown zone, mid-point, stop-end), label each position, and show values beyond the reportable range as the source system and Annex 3 reporting conventions require. Confirm display units and averaging periods with the source system.
Where the architecture supports it, it can indicate valid or invalid data, sensor failure, communication failure, source-system failure, RVR unavailable, network failure and display-system faults. Status information should be clearly differentiated from actual meteorological measurements to avoid misinterpretation.
Wall, panel, console, and rack or cabinet mounting are available. The arrangement should provide a suitable viewing angle, accessibility, cable routing, ventilation and maintenance clearance, and the environmental rating should suit the installation location.
A blank display points to power supply failure, so check power input and protection. No meteorological data points to a communication failure, so check the source system and link. Incorrect displayed values suggest a data mapping or configuration issue, so verify the source data and interface configuration. Intermittent data suggests a network or cable problem.
References include ICAO Annex 3, ICAO Annex 14 Volume I, ICAO Doc 9837 (automatic meteorological observing systems at aerodromes), ICAO Doc 9328 (RVR observing and reporting practices), national civil aviation authority requirements and the AWOS or RVR manufacturer requirements. See also the AWOS sensor page.
The display location and viewing distance, required size and meteorological parameters, number of runways and measurement locations, AWOS and RVR interfaces, communication protocol, data update rate, brightness, mounting, power supply and UPS requirement, environmental conditions, network and redundancy requirements, alarms and status indications, and required documentation.
Indian public tenders commonly ask for the documents below. State which ones your tender requires when you send the enquiry, so they are covered in the quotation.
Planning a new airport weather display, replacing an existing meteorological display, or integrating AWOS and RVR information into an operational control environment? Share your display location, viewing distance, meteorological parameters, existing AWOS/RVR equipment and communication interface, and we can help define the display format, communication interface, mounting arrangement, system integration and supporting equipment.
A Wind & Visibility Display is a presentation component within the wider airport meteorological information system. The accuracy and validity of displayed information depend on the connected sensors, weather processor, RVR system, communication interface and approved data-processing architecture.
Exact display specifications, communication protocols, supported data points, environmental ratings and mounting arrangements should therefore be confirmed against the selected manufacturer's current technical documentation and the airport's project specification.
Product availability, configuration, dimensions, electrical characteristics, photometric performance, certifications and compliance status depend on the selected manufacturer and project specification. The technical values published on this page should not be treated as a substitute for the manufacturer's current approved Technical Data Sheet.
Final selection shall be based on the approved project specification, applicable aviation standards, authority requirements, manufacturer documentation and site conditions. Use of this page is also subject to the Legal Notice, Disclaimer & Terms of Use.
Standards and editions referenced on this site are listed on the Standards Reference page.