activate automatically once it hits the water. once the water is emerged over it. >> greta, if i may for a second. >> yeah. >> it's not the elt that activated by the salt water it is the underwater acoustic beacon that's activated by the salt water. it's been referred to as the pinger. it doesn't make a ping sound. it's more of a ticking noise under water. >> but that doesn't go to the satellite. that doesn't -- that's a noise. it doesn't go to the satellite, right? >> nope. >> the elt goes to the satellite. jesse, do you agree with us that the elt goes to the satellite? the ping is just a noise? >> yes. i agree. i think that's correct. >> all right. so now he we are back to my earlier question is that whether when you -- i mean, it's crashing on land that causes the elt to activate because it's such a hard landing. it hits so hard is that it sends a signal up to the satellite. so i guess my question is that instant it hits water,