Datalink & Voice by asafwewe


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									Datalink & Voice
                                                   Optimise your airport’s
                                                   clearance delivery operations
                                                   Keeping abreast with technological advances in air traffic management for more
                                                   than a decade, Terma has established itself as a prime provider to major airports
                                                   around the world of integrated departure clearance1 or pre-departure clearance2
                                                   (DCL/PDC) solutions via datalink and voice.
                                                   Terma’s global track record is a firm documentation of its ability to deliver state-
                                                   of-the-art commercial-off-the-shelf (COTS) solutions that cater to individual
                                                   customers’ requirements.

                                                   Let Terma help you streamline your clearance delivery operations today
                                                   Conventional clearance delivery procedures build on radio-transmitted voice communication,
                                                   comprising several read and read-back transmissions to verify correct reception of the required
                                                   information, and eventual confirmation of the message by the controller.
                                                   This lengthy process may be further delayed by radio frequency congestion jamming VHF
                                                   communication. Little wonders that controllers may experience great stress during peak hours.
                                                   There is a solution at hand to streamline this procedure – DCL/PDC using datalink com-
                                                   DCL/PDC offers automated assistance for requesting and delivering departure information
                                                   and clearances via datalink communication. It supplements traditional voice communication
                                                   with the objective of reducing workload of aircrew and controller, and minimising clearance
                                                   delivery delays.

Photo: Swedish Civil Aviation Authority            With DCL/PDC, the pilot enters his request on the Aircraft Communication Addressing and
                                                   Reporting System (ACARS). In response, the system automatically verifies his request for
“The DCL service, now                              compliance between data from, for instance, the flight plan and the aircraft.

operational in Landvetter Airport                  Once this compliance is established, an automated message including all essential
                                                   information such as Standard Instrument Departure (SID), current Automatic Terminal
(Gothenberg) and scheduled for
                                                   Information Service (ATIS) designator, runway, next frequency, route, free text from
operation in Arlanda Airport                       controller to the pilot, and QNH value is generated and transmitted to the cockpit. The pilot
(Stockholm) together with the                      can read this information on ACARS monitor screen, or print it out for reference. This entire
                                                   process, including pilot’s read-back, and controller’s confirmation, is fully automated,
third runway, significantly
                                                   requiring no manual interference once the data match. If the system detects any
increases operational efficiency,                  discrepancy, however, the controller will automatically be alerted to either edit the
reduces the workload of air                        information or take over the communication with the aircraft via radio frequency. As such,
                                                   controllers reduce voice communications and monitoring, and can treat clearances in
traffic controllers and pilots,
                                                   sequential order at his or her own pace, rather than being forced to immediately deal with
enhances data integrity and                        requests as they arrive.
safety, and minimises radio
                                                   1 Departure Clearance (DCL) refers to the automated service through datalink for requesting and delivering departure
frequency congestion.”                             information and clearance that follows ICAO’s recommendation on read back procedures. It provides a point-to-point
                                                   communication between the aircrew and the air traffic controller. The pilot sends the clearance request and receives
Mr Johan Arvik, Project Manager, Swedish Civil     the clearance information and delivery via ACARS, with the possibility to print the message out in the cockpit.
Aviation Authority, commenting on the DCL system   2 Pre-Departure Clearance (PDC) refers to the way of giving the clearance via an airline host. An Air Traffic Service (ATS)
the authority has acquired from Terma in 2001.     issues a PDC and sends it to an airline host before departure. The airline host then sends the PDC to the aircraft when
                                                   the latter is ready to receive it.
System architecture
Terma’s DCL/PDC datalink system primarily comprises a server and a hot-standby server. It
interfaces with external data input and output sources such as Flight Data Processing
System (FDPS), Air Traffic Flow Management (ATFM), ATIS input, strip printer, and datalink
connection provided by SITA and/or ARINC. Based on open-architecture, Terma’s DCL/PDC
systems support both datalink and voice communications, and integrate seamlessly with
any third-party products. Each system is developed in close co-operation with the
controllers and CAA’s technical and management teams. Consequently, it is designed from
the start to adapt to and simulate daily operation routines carried out by the end-users, the
The HMI is flexible and customisable. An operator HMI can present both datalink and voice
requests, allowing the controller to handle both types of clearance request from a single
screen. Clearance requests can also be sorted out and presented in different ways, for
instance, into Pending List, Requested List and/or Cleared Flight List. The system can be
configured to only generate flight strips of granted clearance with all relevant data printed,
eliminating the need for controllers to make further notes on the strips. It can also
automate flight table handling. Other benefits include support for more than one runway,
automatic calculation of SID, and handling of Calculated Take Off Time (CTOT) and re-
                                                                                                                       Layout: Henrik Smith Reklame ApS
Your prime choice: Terma’s Datalink Solution
Terma’s DCL/PDC systems are based on the recommendations and standards endorsed by
international organisations such as ICAO. DCL/PDC is a service on the Terma’s Request-
Response datalink system, which also supports services like ATIS and VOLMET. Since the
mid-90s, Terma has implemented Request-Response datalink systems, successfully
integrating D-DCL, D-PDC, D-ATIS, and D-VOLMET at many regional and international
airports worldwide.
A global track record of hundreds of sophisticated ATM systems already installed justifies
Terma’s claim to command a thorough familiarity with the global ATM industry and customer
needs. A sound combination of abundant experience and immediately available COTS
product is your guarantee of a short and smooth project time and easy implementation, and
subsequently, a quick return on investments. Instead of having to develop a system from
scratch, we focus on customising to meet individual customer’s requirements. Our rich
global experience allows us to assist you in identifying and maintaining the optimal solution.
Furthermore, we work closely with your ATC controllers who are involved in the process from
the earliest stages.
Terma’s systems are modular: your DCL/PDC systems provided by Terma will mature with
growing and changing requirements through future upgrading and adaptations, but they will
always work seamlessly with your other existing systems and components.
The world never stands still. Neither does Terma. We continuously refine our solutions and
capabilities as new technological advances become available.
We do not just deliver systems - our solutions imply long-term partnerships.

Photo: Arne V. Petersen, Copenhagen

Terma is a global provider who specialises in developing niche applications for CNS/ATM          Terma A/S
(communication, navigation and surveillance/air traffic management). Our core product lines      Vasekær 12
include datalink and voice ATIS/VOLMET and DCL/PDC, information display and support              DK - 2730 Herlev
system, ADS-B ground station and applications, and radar/ADS display system.                     Denmark
                                                                                                 T +45 8743 6000
                                                                                                 F +45 8743 6001

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