PTT triggers ELT

[Marty71112]

‘70 F

My son just had total comm failure on IFR flight plan. When he keyed mic, it occasionally triggered ELT. Transmission and reception became intermittent. Eventually lost com on both radios. Ideas?

Thanks !

[PT20J]

I don’t see how a comm radio could trigger the ELT. And, it is improbable that both radios would fail in the same way simultaneously. However, the comm antennas are close to the ELT antenna and if the ELT was transmitting, I could see the 121.5 MHz signal overloading the comm receivers. 

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