Avionics Bending: VHF/HF COM Radio Integration with X-Plane (Part 3)

Now that I have decided on a basic architecture for the audio integration it is time to do a power up test of both the Gables radio head as well as the audio selector panel. Both components take 24-28VDC power input. I am driving them with 24VDC and that works just fine.

Gables Radio Head and Audio Selector Powered

At this point the radio head is powered but not yet connected to an ARINC 429 receiver or transmitter. The audio panel is powered and the built in amplifier and "Voice Only" selector are working. I also cabled a temporary L-1011 Headphone and Hand-Mike break-out panel ... this way I am able to connect the David Clark headset for testing. 

Original L-1011 Hand-Mike and Headset Connector Panel

Below is a short video that show the setup in action. I connected a scanner radio listening to Atlanta Center to the Gables Audio Selector's VHF-1 input. The audio is not yet coming from the simulator.