posted on May, 4 2013 @ 04:13 AM
Originally posted by 0bserver1
Applied sciences institute TNO in The Netherlands are testing underwater WiFi . This news came out today in the dutch
The past few weeks for the Dutch coast TNO and the Army experimented with sending data via sound waves in the water. This technique should make it
possible to be able to communicate with for example, a robot which examines mine on the sea bottom wirelessly.
I couldn't find more information on this but this should be some kind of breakthrough to wirelessely communicate with each other underwater.
So I can imagine if this really gonna work it could be having many applications, like using your waterproof IPad while diving...?
Sound and radio are very very different. "wirelessly" does not describe wi-fi here, because wi-fi is a radio signal.
Instead, they're sending data with encoded sound, as they say they are. Very very different.
People have sent data underwater with sound waves for quite some time. However, there are a number of problems. The higher the frequency the sound,
the faster it attenuates due to viscosity loss.
In addition, water currents, ensonified zones, background noise and reflections cause all sorts of issues with data integrity.
Finally, since you can't send a very high frequency sound through water for any appreciable distance due to viscosity dissipation, your data rate is
Other than that, it's great.