answer it yourself *****

I don't know, but I think you need to collect the parts for it or find it (in a plane
ect.) hope this helped!!=)

in the crashed airplane hahaha

you dont you find it near a plane

The transmitter is a little hard to spot but its near the plane in South River Jungle, and
the actual radio is Airplane Jungle once you have both parts it will tell you to repair
"transmitter" then you can send an sos