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COM 4.12 AUTOLAND COMMUNICATION BETWEEN PILOTS AND CONTROLLERS

Autoland is a procedure performed by pilots all over the world and its use is expected to become more common in the future. There are no international standards that require pilots to notify controllers when they are performing an Autoland. … Continued

COM 4.11 RADIO MANDATORY ZONES / TRANSPONDER MANDATORY ZONES

Traffic density is constantly increasing and due to specific airspace classification, controlled IFR traffic can be mixed up with uncontrolled VFR traffic. With the intention to improve safety, additional SSR transponder and radio equipment carriage requirements have been implemented. This … Continued

COM 4.10 PRONUNCIATION OF WORDS FIVE LETTER NAMING CODES (5LNC)

Pronunciation of letters has been standardized but there is a lack of uniformity across the world regarding the pronunciation of waypoints. Specifically, these relate to the confusion over the route designator and accurate identification of the correct 5LNC. iCARD is … Continued

COM 4.9 COMMUNICATION BETWEEN ATS UNITS

Different ways of communication are possible between adjacent ATS Units. Different methods of voice communication, data exchange and coordination between neighbouring ATS units may create challenges in different regions as well as conflicts that may arise related to this subject. … Continued

COM 4.8 RTF PHRASEOLOGY IN CIVIL/MILITARY INTEGRATION

In the interests of safety and knowledge that everyone can understand exactly what is being asked of them it is important for military aircrew and civil controllers to be sure of others’ intentions. This is particularly true when the military … Continued

COM 4.7 CPDLC – DATALINK COMMUNICATIONS

Airlines growing use of VHF Data Link Mode 2 (VDL2) has offered a reliable sub network for CPDLC. Future Air Navigations System (FANS-1/A+) has removed the risk of “out-of-date” messages and Aeronautical Telecommunications Network (ATN) Protected Mode CPDLC has eliminated … Continued

COM 4.6 DIRECT CONTROLLER – PILOT COMMUNICATIONS

As data link becomes an important means of delivering ATS, there are crucial questions that shall be answered before this technology is used for safety-critical communications. This need is especially true where a data link communications system is the primary, … Continued

COM 4.5 FREQUENCY BLOCKING

The blocking of frequencies by inadvertent transmissions is a very real operational problem. A flight deck based technical solution has now been developed but implementation is very limited. IFATCA Policy is: Any device designed to prevent inadvertent transmissions from blocking … Continued

COM 4.4 RTF FREQUENCY USAGE

Other means of communication such as Controller to Pilot Datalink Communications (CPDLC) may present challenges if used in airspace with many time-critical clearances and communications. The current systems are too limited to deal with environments in which the majority of … Continued

COM 4.3 COMMUNICATIONS FAILURE

Some radios have a sleep mode that causes communication failures without being noticed. This results in serious security and cost issues for the military. Radio communication failure is a rare occurrence, but it can result in undesirable situations. Present ICAO … Continued