Author Topic: Extracting GPS & Depth from Humminbird SONAR files  (Read 9735 times)

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Offline MikeM24108

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Extracting GPS & Depth from Humminbird SONAR files
« on: October 08, 2017, 06:25:07 PM »
I have a Humminbird HELIX 5 CHIRP SI GPS G2 and I'm doing some fresh water (limnology) marine archaeology with associated lake mapping.  I have searched, but can't find a method of extracting the LAT, LONG, DEPTH info from the Humminbird SONAR files.  I need to get this in some type of ASCII format (CSV, etc., even unformatted if only available) so that I can import it to EXCEL and modify data for subsequent export to a more sophisticated scientific contouring program. 

Does anyone know where I can find a 3rd party software that can do this extraction.  I can deal with extracting more info than the needed LAT/LONG/DEPTH data in Excel ... but it is really only the LAT/LONG/DEPTH that I want.  I called Humminbird tech support and they said it is not available from their proprietary format.  I find this hard to believe as folks like Navionics certainly extract it.

Appreciate any help or links or suggestions on how I can extract this data from the Humminbird SONAR files for subsequent use.

Offline Rüdiger

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Re: Extracting GPS & Depth from Humminbird SONAR files
« Reply #1 on: October 14, 2017, 04:47:02 AM »
Hi Mike

Welcome to the forum :)

Possibly this is possible with the help of the HumViewer software. Water depth and position data are  from the boat but not from the sonartarget.


Offline Nitro78

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Re: Extracting GPS & Depth from Humminbird SONAR files
« Reply #2 on: October 16, 2017, 12:05:57 AM »
You can use Reefmaster for that !

Offline ckd022

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Re: Extracting GPS & Depth from Humminbird SONAR files
« Reply #3 on: October 17, 2017, 08:00:10 PM »
Humviewer will export lat/lon, date/time, depth, speed and heading to a csv file IF it can read the sonar files for your unit.  I have a 738SI that I have successfully done this with.  One caveat, if I remember correctly, csv export was broken in the latest release.  I believe you need version 67 for that feature to work.  If you need a copy, PM me and I'll send you the one I have.  I have gotten it to work with Win XP, Win7 and Win10 in the past.


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