The KT-78A is a quality King transponder, and an update of the original KT-78. This transponder is solid and dependable. With 150 watts of transmission power, the KT-78A may operate up to 15,000 feet. If you don't fly higher than that, and don't travel a great distance from ATC radar, this lower-powered transponder may be exactly what you need. Why pay more? The KT-78A features:
- 4096 discrete codes
- Mode C compatibility
- System test capability
You may also be interested in an Encoder to use with this KT-78A. When installed with an Encoder, the KT-78A will report both your position and altitude to ATC (Mode C).