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Author Topic:   Humminbird Matrix 25 and GPS Interface
AtoZ posted 07-22-2007 05:00 PM ET (US)   Profile for AtoZ   Send Email to AtoZ  
What GPS information will be displayed [by a Humminbird Matrix 25 when the two devices are connected by NMEA serial data interface]?
Chuck Tribolet posted 07-22-2007 07:52 PM ET (US)     Profile for Chuck Tribolet  Send Email to Chuck Tribolet     
According to the manual at .

"show position, breadcrumb trail and
waypoints on the big, easy-to-read screen, all with big, easy-to-use buttons that
handhelds do not offer. In addition, you can store up to 750 waypoints and 10
tracks inside the Matrix unit!"


AtoZ posted 07-22-2007 08:33 PM ET (US)     Profile for AtoZ  Send Email to AtoZ     
Chuck, I should have mentioned that I have have that manual. I was hoping to find out what the screen looks like. Is it only GPS data or does it still show sonar info. Does it post the GPS speed? I only use the Matrix for depth and speed since I don't (gasp) fish.

I'll email Humminbird..


SpeedBump posted 07-22-2007 09:06 PM ET (US)     Profile for SpeedBump  Send Email to SpeedBump     
I have the same unit and do use it for finding fish. I interfaced it with my Garmin 76S hand held before I moved up to a [Standard Horizon] 150C GPS. I still have the Garmin interface and will occasionally use it along with the [Standard Horizon] and Garmin. The Matrix 25 interface was a big improvement and had additional features and large viewing area. While it does not reproduce the map of the GPS it does track your course, provide bearings, way points,stores routes, shows speed, voltage, temp, etc., while underway. You can customize it in many different ways. My biggest [problem] was remembering to change the GPS output to the proper NEMA setting. Electrical connections were a breeze also.
AtoZ posted 07-22-2007 09:27 PM ET (US)     Profile for AtoZ  Send Email to AtoZ     
Was [the Hummingbird Matrix 25] showing GPS speed or paddle wheel speed?
jimh posted 07-22-2007 09:41 PM ET (US)     Profile for jimh  Send Email to jimh     
Digital chart cartography cannot be transmitted (in any reasonable fashion) over the slow speed serial data interface which is provided by NMEA-0183 interconnections, so there is no chance that a SONAR could ever display digital cartography contained in a GPS and chartplotter. Devices which are are to share that sort of data need a higher speed connection between them in order to move all the data it takes to draw the screen from one device to a second device for display. These interconnections are usually proprietary and I do not believe there is much success to be had in trying to get different brands to act as displays for each other.
SpeedBump posted 07-24-2007 08:36 PM ET (US)     Profile for SpeedBump  Send Email to SpeedBump     
The speed is by GPS.

gss036 posted 07-24-2007 09:40 PM ET (US)     Profile for gss036  Send Email to gss036     
I currently use a Matrix 17 as both a GPS and depth sounder for fishing. It shows a plotter screen only with marks for the locations. If you want [your MATRIX to show [digital cartography or] charts you will need [digital cartography software] for that, which is compatible with the MATRIX 25. My Matrix 17 is not [able to use digital chart cartography].. I also use a Garmin GPS with BlueChart and also an old Loran and depth sounder combination. It only shows a plotter screen.
SpeedBump posted 07-25-2007 06:50 PM ET (US)     Profile for SpeedBump  Send Email to SpeedBump     
you can always upgrade your matrix 25 with GPS, barometer and a few other goodie that escape me. I believe that by the time you add all the bells and whistles you could probably buy a new GPS / FF combo.

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