An application contract allows an TSU to request a single periodic ADS-C report. An application contract does not terminate or modify any other ADS contract that may be in effect with the aircraft. I am thinking of automatic dependent surveillance – Contract (ADS-C) as a replacement for the radar contact of air traffic control. If you have registered with an air traffic service unit with ADS-C, you have accepted contracts that periodically send information such as your location to ATSU. It is a part of the data connection system that keeps you on the same level as air traffic control. Note: The ANSP must ensure that the separation minima are applied in accordance with the appropriate standards. The grounding system may prevent the controller from selecting a periodic signal interval longer than the maximum interval specified in the standard for the minimum separation to be applied. The ADS-C app also supports emergency alarms. An ADS-C emergency report is a periodic report marked as an « emergency report » so that the emergency can be highlighted in the TAC.
Periodic contracts are time-based and can be modified if necessary by atC air traffic control requirements. An ADS contract is an agreement between you, the pilot, to provide information to the Air Traffic Service (ATS). You can provide information about different types of contracts and do so with up to four different ATS providers. The data is automatically extracted from various electronic devices on your aircraft. In return, they give you access to the airspace you are in or coordinate with the neighboring airspace. ADS-C will replace linguistic position reports in many parts of the world. You will need special equipment and authorization to use ADS-C. (b) Optional ADS-C groups to be included in the periodic report. Each optional group may have a single module that defines how often the optional group is included in the periodic report (for example.B. a module of five indicates that the optional group would be included with one in five periodic reports sent). Once an ADS-C emergency has been triggered, under normal circumstances, avionics will continue to send PERIODIC ADS-C emergency reports until the flight crew deselects the ADS-C emergency function.
The aircraft system sends aircraft-specific data in different groups of an ADS-C report. Each group contains different types of data. An ADS-C event report contains only some of the groups that are fixed. The ads-C periodic report may contain any of the ADS-C groups specified by the ATSU in the contract application. ADS-C report groups consist of: With ADS-C, there are three types of contracts that can be configured by your controller and one that can be configured by the driver. Upon receipt of an application for registration, ATSU must enter into ADS contracts with the aircraft before it can receive ads-C reports. There are three types of ADS contracts: An event contract remains in effect until the ATSU cancels it or until the event(s) used to trigger the report occur. The waypoint change event contract triggers a report for all waypoint changes. All other event contracts trigger a report of the first event, and then, if necessary, the ATSU must request a new event contract that specifies all the types of events that you want.
The ground system may enter into ADS contracts without the intervention of the flight crew, provided that the C announcements in the aircraft system are not deactivated. The flight crew has the option to terminate all contracts by disabling ADS-C, and some aircraft systems allow the flight crew to terminate an ADS contract with a particular ATSU. An ATSU system can request multiple simultaneous ADS contracts with a single aircraft, including a periodic contract and an event contract, which can be supplemented by any number of application contracts. Up to five separate ground systems can apply for ADS contracts with a single aircraft. Require contracts: ATC initiates this contract when they want to know where everyone is right now. Everyone responds to the demand. In other parts of the world, however, the planned implementation of space-based ADS-B will require airlines to pay much higher air traffic charges. The report points out that this technology is not necessary as Inmarsat can provide all the services required for reduced separation standards, as published by ICAO. Note.— If the flight crew authorizes a route not approved by ATC in the aircraft system, the ADS-C reports will contain information indicating that the aircraft is using a different route than the shared route. Figure: ADS-C Base Group, from ICAO Document 10037, Figure 1-39.
Traffic Alert and Collision Avoidance System (TCAS) An ADS-C emergency can be triggered by the flight crew in several ways: Note: Although the terms are similar, ADS-C and ADS-B are two different applications. In comparison, ADS-B (PSR, SSR or a comparable ground system that allows aircraft identification) is an ATS surveillance system. An ADS-B-enabled aircraft supports ATS surveillance services and sends information at a relatively high rate, and any appropriate receiver on the ground or in another aircraft in range can receive the information. (a) the time interval at which the aircraft system sends an ADS-C report; and Figure: Waypoint sequencing anomaly, from ICAO document 10037, Figure 4-6. [ICAO Document 10037, ¶4.4.6.1.1] When CPDLC is used to provide position information, the flight crew shall report unnamed waypoints (latitude/longitude) in ICAO format nn[N/S]nnn[E/W] or, if both degrees and minutes are required, nnnn[N/S]nnnn[E/W]. Note: If the flight crew uses non-ATC waypoints (e.g.B.mid points) in the aircraft`s active flight plan and allows the change, the aircraft system may trigger an ADS-C waypoint change event report at the non-ATC waypoint or contain information about the non-ATC waypoint in the planned route group and medium and fixed projected intent groups. Therefore, the ADS-C report will include non-ATC waypoint information that is not expected by the ATC ground system. . The ATSU can use an ADS-C report for a variety of purposes. These include: a) manually by selecting the ADS-C emergency function; An event contract allows an TSU to request an ADS-C report when a specific event occurs.
An TSU can only enter into one event contract with one aircraft at a time. However, the event contract can contain several types of events. These types of optional events include: In particular, pilots should be aware of the determination to climb or descend 300 feet (depending on the direction of flight and the direction of deviation of the route) in order to reduce the likelihood of conflict with other aircraft if they are forced to deviate relentlessly. Asia/Pacific Information Kit, Faa Flight Technologies and Procedures Division (AFS-400), June 15, 2012 Gulfstream G450 Aircraft Operating Manual, Revision 35, April 30, 2013. In addition, space-based ADS-B position reports do not contain enough information required by the FAA`s air traffic control automation system, which is the most advanced in the world and requires information to identify aircraft conflicts up to two hours in advance. Note: Some NASPs require a single CPDLC position report, even if they are in an ADS-C environment, to confirm to the ATS Control Unit that it is the ADC and the only ATS unit that can communicate with the aircraft via CPDLC (see Appendix B). You don`t have to worry about driving a strategic lateral shift, as your FMS sequences waypoints even if you`re two miles away from the planned route. However, if you are beyond the tolerance allowed by your FMS, it cannot sequence. In this case, the management report is not prepared.
Aside from the scheduling requirements discussed in paragraph 2 of ENR 7.1, Flight Plan Submission Requirements, the application of distance separation does not affect the operator`s planning processes or flight plan submission procedures. Operators who have submitted and taken preferred user routes (UPR) can still do so. For more information on the operating principles, capabilities and benefits of ADS-C, see the ICAO Global Operational Data Liaison Document (in Further Reading), Section 2.2.6. Broadcast Automatic Dependent Surveillance (ADS-B), such as Primary Surveillance Radar (PSR) and Secondary Surveillance Radar (SSR), is an ATS surveillance system that allows ATC to automatically and repeatedly access data from all appropriately equipped aircraft and transmit it to other appropriately equipped aircraft within range. . . .