elt question

[PapuaPilot]

One of my EAA Chapter friends flies a Long EZ, he installed a Garmin G3, then he installed an ACK 406 ELT. Twice his emergency contact received a call from SARSAT, his ELT had activated in flight. After some investigation, he found the the transponder antenna coax was in proximity to his ELT test panel/buzzer lead and the transponder triggered the ELT. He had to reroute the transponder antenna coax to resolve it.

Ralph

I had the exact same thing happen once and have the same combo (Garmin G3X & ACK-04). My wife got the phone call from SARSAT while I was still flying. I called ACK and they told me the same thing. ACK said it wasn't their ELT but the Garmin GTX-23 transponder that causes this to happen. My transponder antenna cable was too close to the ELT remote switch cable. They said to move the two cables as far apart as possible. I ended up fabricating a four wire shielded cable for the ELT remote switch and have not had a problem since.

Eddie, as best I know this is only a problem if you have a Garmin GTX-23 transponder and a ACK-04 ELT. If that is what you have at least you know it before you install everything.

[efwd]

Thx, John and Phil. I don't have that ELT.
Headed to AS&S to get some wire connector tools. Wish me luck at getting these wire connectors apart safely.