The TT21/TN72 Conspicuity Bundle (EDMO# 02375-00) is ideal for flight below 15,000 feet where a Class 2 transponder is permissible for Mode S and ADS-B Out. The TN72 and TT21 in combination can be configured to either support TABS (SIL 1) or X configuration (SIL3) in the controller. This bundle also includes the TA50 compact antenna with 1m lead and QMA connector that plugs into the TN72.
