NATCA Bookshelf

ADS-B Avionics Issues - • An issue not screened by automation systems but an important assumption for future ADS-B dependent applications is the broadcast call sign of the user. ADS- B aircraft reports include this information, and automation systems compare it to the filed call sign. When a mismatch occurs a Call Sign Mismatch (CSMM) alert can be generated. The issue has been highlighted in Equip 2020 meetings since ADS-B dependent applications (CAVS, Advanced Interval Management, etc.) are dependent on this functionality. Monthly tracking continues to show this as a significant problem. The SBS Article 114 Workgroup has recommended disabling CSMM alerts across all automation platforms. • NATCA SBS continues to work with the Agency toward a more proactive approach to ADS-B avionics issues that result in position error. These issues occur when standards for installation or configuration within aircraft or ground systems are not met. ADS-B is a cooperative surveillance source relying on position accuracy determined onboard the aircraft. Controllers and facilities are encouraged to report any identified events through ATSAP and via automation trouble reports. • Issues with the uAvionix SkyBeacon wingtip mounted ADS-B unit used for general aviation aircraft are still being worked along with AVS (flight standards) and AIR (flight certification) in efforts to correct these issues. ASDE-X Tech Refresh - • Now that our terrestrial ADS-B infrastructure is deployed and the 2020 mandate is approaching, there is an ongoing discussion about the desire to stop supporting MLAT on the Surface. ADS-B radios input to ASDE-X and ASSC offer the same data and accuracy to the surface surveillance systems. Over the next year, analysis will determine if this is achievable. ASEPS (Space-based ADS-B) - • Space-based ADS-B activities have started in ZMA. The team is currently working with ZMA and neighboring facilities regarding SOPs and LOAs. Space- based will be used in Sectors 62 and 63 of ZMA. This is going to be the proving ground for space-based ADS-B in the NAS. This will also greatly help the facility when they lose the Grand Turk radar. ZSU is also going to play an integral part in the success of this program. • An SRMP was successful at ZSU on Oct. 31 to solidify a new LOA between ZMA and ZSU to support the upcoming SBA (space-based ADS-B) efforts for the Caribbean. • SBA IOC for the Caribbean is on schedule for March 2020. • Discussions are ongoing with the agency about integrating Space Based ADS-B into ATOP. The SBA team and ATOP team are collaborating on these efforts. ASSC - • PDX IOC achieved on Nov. 21. • ANC CADRE training is complete. ANC Field Familiarization will start in February.

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