Aviation Pinger News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Vice president and group manager at teledine marine systems which makes some of the pinger locators that have been used in this search for the flight. also mary schiavo, aviation analyst and former inspector general for the u.s. transportation department. thomas, i want to start with you. first, are you surprised about this latest news that the pings didn't come from the black boxes? >> no. i mean, that was always a possibility. i think we talked about this over the last couple of months, that the frequency was slightly lower than what is the prescribed 37.5 kilohertz requirement for the aviat...

So already, although they didn't find the pingers, they had a well-contained area they were searching. they had a pretty good idea what they wanted to look for. here we had potential pings that have defined the search area. since the search area is so large and there's a risk that the pings that were heard were not from an aviation pinger or maybe it hasn't defined a small enough area, it's not surprising they haven't seen anything yet. >> thomas art schule her, thank you very much for your perspective. >> thank you. still to come, a massive assault in yemen targeting one of the world's most...

>> probably what happened there was the frequency or signal characteristics didn't look like the simple aviation pinger. i wouldn't want to judge them. but think about what they are built for. they are built to detect submarines which are running quietly. they are 1,000 feet and well be low the noise that is coming from the surface of the ocean. they are very, very sensitive. it is probably discounting that detection. in spite of what you have just said. will they deploy those fairly soon? >> they haven't had a tpl signal in four days now.

Inside the boat. is that a possibility? >> it could be. we know that the other pinger is not an aviation pinger. it's at the same frequency, 35.7 kilohertz. it's one that we manufacture. it's used to put something in the ocean and set a time that says don't start going off for five days from now and then i can find what i put in the ocean. the chinese appears to be testing the device and working okay. so if they're careful it would be fine to have it in the boat if you keep it dry when using it in the water. >> that's the key. >> really, we have trained the users originally of that equipment. ...