[PSUBS-MAILIST] 2019 Flathead Lake Expedtion

Tue May 14 19:26:07 EDT 2019

Great idea Cliff. Sure wish I had one when on the bottom of Lake Tahoe.

Best Regards,
David Colombo

804 College Ave
Santa Rosa, CA. 95404
(707) 536-1424
www.SeaQuestor.com

On Tue, May 14, 2019 at 10:31 AM Brian Cox via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> I love it !    Captain's log star date ....    alien octopus attacking
> ship..          I used to have a really good quality Sony voice recorder
> that would store 72 + hours of audio,  with a SD card I think you could
> extend the storage.
>
>
>
> Brian
>
>
>
> --- personal_submersibles at psubs.org wrote:
>
> From: Cliff Redus via Personal_Submersibles <
> personal_submersibles at psubs.org>
> To: Personal Submersibles General Discussion <
> personal_submersibles at psubs.org>
> Cc: Jim Craft <jim.craft at umontana.edu>
> Subject: Re: [PSUBS-MAILIST] 2019 Flathead Lake Expedtion
> Date: Tue, 14 May 2019 16:21:49 +0000 (UTC)
>
> Dr. Jim Craft, the Science Point for the Expedition from the Flathead Lake
> Bio Station (University of Montana)  has drafted the 2019 Flathead Lake
> Expedition science objectives(attached).  Jim has the surface crew and psub
> boat captains documenting any observations we will make during the dive.
> Surface crew will be recording data such as GPS location, depth, altitude
> of subs, and documenting an comments crew makes.
>
> For the R300 I have been experimenting with different ways to come up with
> an Audio Captains Log kind of like what Captain Kirk uses on the USS
> Enterprise!  I tried a number of cheap Chinese audio recording devices and
> was just not happy with ease of use and audio quality.  I was looking for a
> KISS easy to use device that would sit in the background and record MP3
> files and if not in use, go into sleep mode to get long battery use.  After
> a few tries, I found a unit that is working great.  It is built in Korea.
> The device is the MQ-L500 150 Voice Activated Recorder from MEMOQ.  These
> come up on Ebay all the time at $90.
> https://www.ebay.com/itm/MQ-L500-Power-Bank-Audio-Recorder-Hidden-Spy-Voice-Activation-Recording-Device/153122811398?epid=17024703124&hash=item23a6d4ae06:g:q~8AAOSw51xbYgyE
>
> The unit is build solidly with dimensions of  3.5", 1" .75" and weighs
> about as much as a roll of pennies and is about the same size so has a nice
> solid weighty feel.  Only has a roll switch that has positions of off,
> continuous mode or intermittent mode and a switch to display the battery
> level.  It came with a small magnet which I replaced with a larger one that
> I epoxy-ed to the device. This make it easy to attached it to the interior
> hull.  In the voice activated mode, the unit will record for an amazing 150
> days.  In continuous mode, it will record for 14 hours.  To charge and
> transfer MP3 sound files to your laptop you use a USB cable that is
> provided.  In continuous mode it records in 5 hour segments.  The files are
> date and time stamped so it makes it easy to document when an event
> occurs.  Because the recording is to a solid state memory chip this unit
> also serves the role of cockpit voice recorder (CVR), in the event someone
> every had to do an accident investigation.  The unit has a built in mic so
> it will record when using either surface comes in VHF or underwater comms
> like OTS gear without having to plug these units into the recorder.
> Something to consider.
>
> OAS, we still have one cabin with three beds available at the Flathead
> Lake Bio Station (FLBS) where we will be using as a base station for the
> week (Aug 5-9) if anyone is considering coming.  If anyone needs more info
> on the cabins, let me know and I will provide.
>
> Cliff
>
>
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