Why Don't Black Boxes Transmit Data in Real Time?

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March 11 (Bloomberg) -- Malaysia authorities said hijacking and sabotage are part of the criminal probe in the disappearance of Flight 370, a mystery now in its fifth day, and the CIA said terrorism can’t be excluded. Megan Hughes reports on the questions surrounding the transponder technology on board. (Source: Bloomberg)

Have they found anything?

Not a lot.

A lot of different moving parts.

Let's talk about the transponder because that is mystery number one.

Investigators do not know why the transponder, as is what indicates location, that went dark lesson hour after takeoff.

The pilot may have switched that off.

You have this emergency location transmitter.

These are made by honeywell.

They sent out a signal if there is an impact.

They can also be manually activated by the pilot if there is an emergency.

In this case, that did not work.

And then you have black boxes.

Made by honeywell.

They are not black boxes, they are orange boxes.

This plane would have been equipped with two recorders.

One of them was the flight data recorder.

Things like wing movement, settings.

Then you have the cockpit voice recorder.

That has the most recent audio, up to two hours of material.

After a crash, these are supposed to send out signals for about a month.

They could still be underwater somewhere, which does make that signal little bit weaker.

The signal is supposed to be heard at a depth of 2.8 miles.

The area, we are talking about 160 five foot deep waters.

There is the question, are they even looking in the right place?

The bottom line, they have not found anything.


They have no evidence and it is very strange with those two devices that are supposed to be communicating information back to the ground.

What about the technology they are using?

What are they doing to try to find some debris or some sign that an airplane is in the area?

A lot of questions and a lot of criticism that these black boxes may be outdated.

Why doesn't the ground to get live streaming black box data?

That would make the search for the black box a moot search.

I did talk to honeywell about that argument.

Honeywell says for what the czar, this is the latest technology.

The -- for what they are, this is the latest technology.

Ever since the air france crash, there has been a huge push for airlines to make more investments in satellites, it get more of that data.

I am wondering what they are doing on the ground in the ocean to find the planes.

If he uses satellite, you could look down and have a better view.

They are starting to do that.

We are talking about using satellites to communicate, which is -- we are after that fact.

They're starting to employ satellites.

A vietnamese satellite is taking pictures of an island area in the gulf of thailand.

I've seen reports that chinese satellites are being used.

One of the big questions that we have been talking about is the fact that we have yet to find this debris.

Some of the experts have said this could have been a huge explosion.

You would think there would be so much fuselage, life jackets, that should be out there.

Thank you very much.

Megan hughes on the fact that we

This text has been automatically generated. It may not be 100% accurate.


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