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Aeronautical Radio
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VHF transmitters and receivers are used for communication between
the air traffic controller and the aircraft pilot. They work at
frequencies from 118,025 MHz up to 136,975 MHz using amplitude
modulation AM
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Radio direction finders RDF use the radio telephony signals of
the aircrafts to locate them basicly using the Doppler effect
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Communication equipment
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Voice exchange facilities to allow air traffic controllers
communication with the controllers of neighbouring countries
controll centers
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Voice recording devices for reconstruction of air traffic incidents.
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Data preparation for operation electronics at
the controllers working positions.
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The TID (Touch Input Display) at
the controller working positions is a modern control
desk for voice communication
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Statistics data processing for seeing occupation and failures of
technical systems
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Navigation equipment
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VOR (VHF Omnidirectional Range) allow planes precissious navigation
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DME (Distance Measuring Equipment)
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NDBs (Non Directional Beacon) are old but good LF-signposts for
pilots
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ILS (instrument landing system) allows landings also at bad weather
conditions.
It consists of locator and glide path.
Inside the planes cockpit instruments show
the correct approacht to the runway.
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HMU (Hight Measuring Unit)
measures the altitude of all planes to compare them with data caught
by radars
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Radar Stations
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Survace Movement Radar (SMR) shows the airportīs ground traffic
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Surveillance Radar Equipment (SRE) shows aircrafts at runway
approach
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Route Surveillance Radar (RSR) shows the air traffic in a wide
area of airspace
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Data Processing
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At the radar data processing the data of several radar
stations are combined to get a map of all aircraft inside Austrian
airspace. Every plane is shown with his call-sign, velocity and
altitude.
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Power Supply
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Uninterruptible Power Supplies (UPS) provide electrical energy in case of a
a lacking public net. All systems are redundant to provide a highest
degree of safety
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Diesel engines gurantee self-contained
power supply
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The low voltage DC systems are feed by redundant inverters
and buffer batteries. There are 24V, 48V and 110V systems
primary supplying communication devices
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Batteries are built with hundreds of single cells. UPS and
the DC-curcuit operate with their energy till getting
"Diesel-energy" while a net breakdown
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Data generating for weather reports
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Runway visibility range (RVR) measuring to catch the range of vision
at the airports
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Cloud ceiling measuring devices based on radar or IR measuring
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Weather radars (WXR) to registrate the actual weather situations
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Information systems distribute informations to
airports and airlines
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Simulators
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Towersimulator with 360° projection
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Radar simulator for training air traffic controllers
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Technical monitoring
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All technical systems are monitored and controlled 24/7
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Helpdesk for flight control specific data lines
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Data communication
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2MBit line-system for voice- and data-communication
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Austro Control Network (ACN)
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Controlling and monitoring of external air traffic control devices
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Radar data transfer RMCDE
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Radar screens
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The radar map is shown on high resolution 2k-pix screens
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