I drilled a couple of holes in the subpanel for the ELT audio box. This emits beeps to indicate that the ELT is transmitting or when performing a self-test. I also cut and installed modular plugs on the end of the cable and fabricated a custom short cable for the run from this box up to the remote.
Here’s the other end of the cable from the audio box. After installing this, I put the ELT switch in the armed position and hit the test button on the remote to perform a self-test. Initially, the ELT reported a high VSWR error which makes sense since I hadn’t yet installed the ELT antenna. I quickly threw a BNC connector on the end of the antenna cable and connected the antenna. Re-running the self-test indicated that all systems were functioning properly. I still need to confirm that the ELT is properly receiving position data from the GTN, but I need to fabricate a small test circuit to do that.
