Cyberware LCD Mask

oops ... I hadn't read page 2 ... sorry

Hi Andi!

Guess what I will test today?  

Put my phone in a housing and drown it. The I will try to make a Internet  

connection. Will post here if it works.  

Don't go below 1/2m! You won't get a proper GSM or GPRS connection. I tried to send an SMS from the bottom of a pool but it didn't work. You'll need an external antenna on a float (on your diving flag ).

I know of a dive platform (5m) where somebody mounted a "no phone" sign. I'd like to take a picture with a camera-phone and send it as MMS straigt from the platform. So I tested GSM/GPRS in the pool. Next thing to do will be an extension to the antenna so I can operate teh phone inside an EwaMarine like bag.

BTW, a GameBoy works well at 5m, tested. Killing time during deco!

I just had a chat with a guy at Uwatec about the frequencies used for hoseless computers. The devices don't need much of a bandwidth (in contrast to video streaming) so they can use low frequency ranges. I couldn't get a definite value because he wasn't sure if it's ok to share the info.

Helge

Well HF travel through air and LF on ground.

I think it's always in the kHz range (audio transmission).