How do you make the SOS work Sims 2 Castaway?

you need to be on high ground go on top of the volcano in volcano overlook, look to the left when you get to the overlook you will see a hegr hill go up and explore it wont let you becausse you dont have enough skill or you dont have enough energy when they let you up place the air plane radio some where you have to have the transmitter if you have the transmitter when you walk up to the radio it will say repair trasmitter click on it wken you repair it will say send sos! i hope i helped good luck