Brief Description: Autopilot NAV Signal Control Switch
Finally, I installed a Double Pole Double Throw (DPDT) ON-ON switch and routed all the Navigation (GPS/VOR/ILS and Autopilot Servo Input/Output controls through this switch in four different formats (Aviation Format RS-232 GPS, ARINC 429 A & B, and Fuel/Air Data Z Altitude Encoder Format). This allows the autopilot to be controlled by the GRT HX EFIS computer as the primary controller and if something ever happens to the EFIS in-flight, I can switch the control to the GNS 430W WAAS Navigation and Flight Control system. I have to say I’m impressed with the technology and if you integrate it properly it’s awesome!