TC20 SERVICE BULLETINS FOR PILOTS

TC20 Transponder Control Head

Software versions run numerically, the higher the number the more recent the release – so the latest software will always include all the features of earlier versions.

04/09/2017       version 1.14 – Current software version

This software adds support for Trig TN72 as a 14 CFR 91.227 compliant ADS-B position source and adds GPS only air-ground determination algorithm for ADS-B Out.

17/09/2015         version 1.12

Introduction of support for TSO-C199 TABS GPS position sources.  This requires that the associated TT21 / TT22 hardware unit is loaded with software at level 2.7 or above.

22/10/2013         version 1.10

This adds manual adjustment of the control head LCD backlight brightness.

11/05/2012          version 1.7

This version adds configuration support for DO-260B ADS-B installations. Introduced configuration to connect to Garmin ADS-B position sources.

09/03/2010        version 1.3

This software adds the ability to receive TIS ‘A’ traffic in relevant US airspace