scottweideman
Registered
This all in all sounds good, however RF signals dont pass through water very well at all, ELF do all right but not in small devices. I dont work for Navimate, so I dont know exactly how it works, but my guess is the base unit by the boat recieves the GPS signal, then it in turns sends out noise, similer to the sonar and the hand held units recieve this and can tell were they are, to make the base unit know where the divers are more accuratly would require them to install a transmittor in each unit. Yes the boat can pick up the echo from the sonar. Now as far as communication underwater to the boat wirelessly this would be almost impossible first you need a full face mask so you are able to speak. then you have to somehow transmit that signal through the water, Water absorbs rf signals quickly, you see that as colors disappear as you dive. any signal sent through the water couldnt be RF except in VLF and those are not cheap. This is getting long and isnt of any real use except for saying that actual audio conversations from a diver to a boat would be very difficult.
My credentials, short term diver, however I used to control military signals operating in different wavelengths. I also have learned stuff about them in radiology training. this training also helped me learn how people hear.
My credentials, short term diver, however I used to control military signals operating in different wavelengths. I also have learned stuff about them in radiology training. this training also helped me learn how people hear.
