Sorry, but you are talking Vietnam war technology.
Modern a/c ELTs transmit on 406MHz which is nowhere near any voice band.
MAYDAY calls are made on 121.5MHz or any other available one. This is an ICAO approved procedure - not only a recommendation! And as stated before in post #22 in this forum, I find it utterly improbable and unacceptable that the crew didn't make it! I still believe that finding the reason for this will be a major contribution in establishing the cause for the disaster!
Pls do not mislead the uninformed...
