Perhapse the diver needs a waterproof (preesure proof) distress flare.

Doug Butler
Sherpa Engineering


> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Peter L. Peres
> Sent: Sunday, May 11, 2003 3:19 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: Underwater navigation
>
>
> I don't know much about diving but I know that there are sounding devices
> that can help with this. The 'original' would be a wooden float (bucket)
> banging into the hull with the waves. A more modern version a 2kHz beeper
> set off once a few second or so, but not for a very short time (1/2 second
> probably). The df equipment would be the diver's ears. I have not tried
> this but I read about it.
>
> Also imho knowing which way the boat is while in a current of 2 knots or
> more is not very helpful.
>
> Peter
>
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