ADS-B INSTALLATIONS Continued from page 59 ADS-B Essentials: Part 3 FAA ADS-B installation guidance Guidance on the installation of ADS-B Out avionics for aircraft with a standard airworthiness certificate; these aircraft can broadcast ADS-B data on 1090 ES avionics and/or on 978 MHz UAT avionics. 1. Refer to AC 20-165A for guidance on the installation and testing of ADS-B Out avionics on aircraft with a standard airworthiness certificate. 2. ADS-B Out avionics must be approved by the FAA with a TSO (technical standard order) when installed on an aircraft with a standard airworthiness certificate. Approved ADS-B Out avionics will be marked with either TSO-C166b (1090 ES) or TSO-C154c (UAT) on the equipment's attached data plate. Do not install non-TSO ADS-B avionics on Part 23 and Part 25 aircraft, or Part 27 and Part 29 rotorcraft. 3. Installation of approved ADS-B avionics on an aircraft with a standard airworthiness certificate must be through a supplemental type certificate, approved model list associated with an STC, or field approval under certain conditions. Refer to the FAA policy memo for more information at www.faa.gov/about/ office_org/headquarters_offices/avs/offices/afs/ afs300/media/Major_Repair_Alteration_Job-Aid.pdf. Guidance on the installation of uncertified ADS-B Out avionics (1090 ES or UAT) on amateur-built aircraft and light sport aircraft that have experimental airworthiness certificates: * 62 Non-TSO ADS-B Out avionics may be installed on amateur-built and light sport aircraft with experimental airworthiness certificates. In such installations, the ADS-B Out system must be configured to transmit a system integrity level and system design assurance of zero (SIL/SDA=0). The SIL/SDA=0 settings prevent ADS-B data of unknown quality and integrity from being processed by ATC automation and other ADS-B equipped aircraft but allow for the avionics to receive FAA traffic and weather broadcast services: avionics news * june 2014 TIS-B and FIS-B. Contact the manufacturer of nonTSO ADS-B Out avionics for instructions on how to ensure SIL and SDA parameters are configured properly prior to operation. Guidance on the installation of both 1090 ES and UAT ADS-B systems on the same aircraft: * It is acceptable to equip an aircraft with both a 1090 ES and UAT ADS-B Out system. When properly configured, such installations allow pilots to take full advantage of available ADS-B broadcast services and capabilities. Care must be taken to ensure the systems are configured properly to avoid possible issues with ATC and other ADS-B aircraft. The FAA recommends that aircraft equipped with both a 1090 ES and UAT system be configured to transmit ADS-B data from the 1090 ES system only and set to receive data on both systems (if applicable). This configuration will comply with all ADS-B Out airspace equipment requirements and maximize use of ADS-B broadcast services (TIS-B and FIS-B). The FIS-B service is available only with UAT systems over the 978 MHz frequency. Use of portable ADS-B Out systems: Portable ADS-B Out systems, also known as "suitcase" units, should not be operated (transmitting) aboard any aircraft. While marketing associated with these units may imply approval for use by way of an FCC license, the FAA prohibits their use for the following reasons: 1. The positioning of portable, suction-cup GPS antennas associated with these units often require they be affixed to front or side windows or glareshield to obtain a usable signal. Such antenna placement obstructs the pilot's view. Wiring connecting the antennas to the suitcase unit also interferes with aircraft controls and instruments. 2. ADS-B Out avionics require the transmission of a valid Mode S code to operate properly with ATChttp://www.faa.gov/about/office_org/headquarters_offices/avs/offices/afs/afs300/media/Major_Repair_Alteration_Job-Aid.pdf http://www.faa.gov/about/office_org/headquarters_offices/avs/offices/afs/afs300/media/Major_Repair_Alteration_Job-Aid.pdf http://www.faa.gov/about/office_org/headquarters_offices/avs/offices/afs/afs300/media/Major_Repair_Alteration_Job-Aid.pdf