[PSUBS-MAILIST] 3D dive recording, kickstarter

[Alan via Personal_Submersibles]

Thanks for the insight into their product James.
One of the problems is getting the GPS signal down to the sub, &
I have been looking at this company .....
https://dspcommgen2.com/aquatrans-underwater-acoustic-dunking-hydrophone-transducer/
for data transfer transducers & modems. 
They are reasonably inexpensive & are based in Bangkok.
BTW you seem to know your stuff, are you involved professionally in that area
or is it just an interest? 
Regards Alan 



> On 16/01/2020, at 8:54 PM, J. Foulkes via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> 
>   Hello everyone,
> 
> OEngineering was at CES this year with this product and I had several lengthy discussions with them about their system.  So, first I would like to point out that the real focus of this system is for citizen science applications (inexpensive) not for extended dive precision mapping.  If this is your application, you would be much better served using a control laptop with external IMU and GNSS devices as the IMU on this product doesn't have the best freerunning accuracy.  Secondly, it seemed that what they were really pushing as the technology you are paying for is the app interface.  It was unclear from talking with them what interface would be available (API) for downloading raw data on points of interest  and continuous tracking outside of this interface.  Also, one thing to note is that if you were using this in your sub for datalogging (it requires manual button pressing for POI logging) you would need a GNSS repeater with a bulkhead pass through.
> 
> Regards,
> James Foulkes
> 
>> On Wed, Jan 15, 2020 at 11:22 PM T Novak via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>> This does look interesting, Brian.
>> 
>> Worth thinking about.
>> 
>> Tim
>> 
>>  
>> 
>> From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of Alan via Personal_Submersibles
>> Sent: Wednesday, January 15, 2020 4:38 PM
>> To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
>> Subject: Re: [PSUBS-MAILIST] 3D dive recording, kickstarter
>> 
>>  
>> 
>> Looks useful Brian.
>> 
>> Some sort of mapping is definitely useful.
>> 
>> I have just been looking at GPS receivers to see how they can be water / pressure
>> 
>> proofed. I think a GPS system would be the bare minimum. 
>> 
>> If you found a treasure chest you could at least head straight to the surface
>> 
>> & get a GPS coordinate.
>> 
>> Alan
>> 
>> 
>> On 16/01/2020, at 11:26 AM, Brian Hughes via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>> 
>> OK,
>> 
>>  
>> 
>> This looks interesting:
>> 
>>  
>> 
>> https://newatlas.com/outdoors/brizo-3d-scuba-dive-maps/?fbclid=IwAR0bwSGSy8zlABzonbS9PO4M-hyca94ADtn57E7YlccucUaqQGz3WNFqYBQ
>> 
>>  
>> 
>> Brian
>> 
>>  
>> 
>> Get Outlook for Android
>> 
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