GTX 320/320A Installation Manual Page 1-1 190-00133-01 Rev M 1 GENERAL DESCRIPTION 1.1 Introduction This manual provides the installation and operating instructions for the Garmin GTX 320 and the GTX 320A Transponders. Information pertaining to the maintenance, alignment, and procurement of replacement parts is BENDIX / KING KT 74 ADS-B MODE S TRANSPONDER If a new transponder is on your to-get list, you might want to choose one that's both relevant now and in the future. The KT 74 transponder from Bendix/King is the easiest upgrade to the popular Per the installation manual, the KT-74 does accept Well, I think I need to chalk this one up as a fail on my part. I got the work invoice for my KT-74 install, and it was 16 hours of labor. When I asked for a more detailed breakdown of the labor hours, I got an explanation as to why working on my panel was difficult and how the actual work logged was 30 hours, but since they had only quoted 16 hours in the estimate they honored it and were The connection to the audio panel requires you to use the KT-74 tray. If you have RG-58 coaxial cable for the transponder, you have to replace it with RG-400. The STC lists a specific speed switch which sells for about $100. If a new transponder is on your "to-get" list, you might want to choose one that's both relevant now and in the future. The KT 74 transponder from Bendix/King is the easiest upgrade to the popular KT 76A/C and KT 78A models, with a "plug and go" capacity. transponder needs. The KT 74 meets the Global Mandates for Automatic Dependent Surveillance - Broadcast (ADS-B) out* and more. *When coupled with approved GPS source, STC and install kit required. Additional KT 74 Benefits: • Push button operation • New sleek design • Most affordable Mode S Transponder with ADS-B Out the installation of the transponder in a wrong rack. The TT31 is a Class 1 transponder which will 'plug and play' straight into an existing KT76A or KT78A tray. This significantly reduces