Due to the large spans the signal must travel it must be amplified or reconstructed at one point, taking into consideration that everything happens underwater, where does the box that reconstructs the signal get it's power.
we can harness the power of currents and tides to do so.(very large bouy type generators)
I don't know but it sounds pretty sick. Maybe electric eels??
while you're making use of your PS3 you need to use the HDMI cable going to the television, then an optical cable from the television on your sound device. you need to use a maintains cable from one source to the different. making use of a cable no longer than 35 ft at maximum. making use of longer cable can some cases create a video or audio lag. desire this might aid you out.
The cable that is laid on the ocean floor is typically called a submarine cable. These cables have been around for decades and were at first solid conductor cables used for telephone communications. Today they are typically a fiber optic cable with a solid conductor in the center. Typical burial rated fiber cable today can go 100km or about 60 miles in between repeaters. The cables are typically connected on either end by landing stations. These landing stations also provide power feed equipment. The repeaters are powered by a constant current sent down the conductor near the center of the cable. Therefore all repeaters in a cable are in series i.e. one wired to the next and to the next and so on. The landing station on one end of the cable will send a positive current and the station on the other end will send a negative current. The repeater derives it's power from the potential difference drop across them. This is basically a two channel power circuit wired in series using the same conductor...sorry to get really techincal=) isn't the internet great...hope this answers your question...below is a link to the patent applied for regarding transoceanic fiber repeaters, a submarine cable map, and my business website.