At Avionics Installations, Inc., we are very well versed on the upcoming requirements for ADS-B.  The 2020 deadline is rapidly approaching, and we have steadily been performing ADS-B upgrades for several years.  We are one of the largest installers of Garmin ADS-B Out equipment such as the Garmin GTX 330ES Extended Squitter Transponder, as well as the GDL 88 Universal Access Transceiver (UAT).  We also install and carry many other ADS-B Out and ADS-B in products such as the Freeflight System Rangr, L-3 Communications Lynx, and Appareo Stratus ES-G line of products.