The TT31 class leading, Mode S transponder is a popular retrofit transponder for legacy transponders. With plug and play compatibility, the TT31 to installs directly into an existing KT76A, KT76C, and KT78A mounting trays from Bendix King significantly reduceing installation time and cost — to provide pilots with 1090ES ADB-S capable Class 1, Mode S technology. This TT31 transponder kit (EDMO# 00225-00) includes the TT31 Mode S Stack Transponder, mounting tray, connector kit, and user manuals.
