Moderated Discussion Areas
  ContinuousWave: Small Boat Electrical
  SONAR Screen Capture--Show Us What You Have

Post New Topic  Post Reply
search | FAQ | profile | register | author help

Author Topic:   SONAR Screen Capture--Show Us What You Have
jimh posted 03-23-2008 12:14 PM ET (US)   Profile for jimh   Send Email to jimh  
A few SONAR devices provide a facility for their users to capture the screen image and record it in some manner for later viewing. If you have such a device and have captured any images of the rasterized display, and your device allows you to export the image as a graphic file, please send me the image and I will append it to this discussion. I think it will be interesting to see what devices have this capability and if owners take much advantage of it.
jimh posted 08-22-2008 02:01 PM ET (US)     Profile for jimh  Send Email to jimh     
We've had five months go by without any contributions of SONAR screen captures. Has anyone grabbed any good screen captures from their SONAR units?

As far as I have been able to determine, direct capture of the screen is limited to RAYMARINE and LOWRANCE devices. Are there any other SONAR units besides those two brands which support screen capture to memory card?

bluewaterpirate posted 08-22-2008 02:25 PM ET (US)     Profile for bluewaterpirate  Send Email to bluewaterpirate     
Don't have any screen captures but have some videos & pictures ....

Furuno 620 Videos

Raymarine DS500 Image-4892322-31032745-2-Web_0_4dfbcf654b2b72399db5b41d6d3becd3_1 Image-4892322-31032901-2-Web_0_975253bbe79d64d43f763f3f2cca864f_1 Image-4892322-31033019-2-Web_0_940d22e99eb2db00c2311e97934d2e6b_1 Image-4892322-31033033-2-Web_0_36b5a5fbe8e7c9accda03cce865bb7a6_1 Image-4892322-31033006-2-Web_0_e4cb373b0137fe9b291140eb153aba1c_1

jimh posted 08-24-2008 09:08 AM ET (US)     Profile for jimh  Send Email to jimh     
Those color sunlight-viewable displays photograph better than my grayscale sounder screen.

Chuck Tribolet posted 08-24-2008 10:54 AM ET (US)     Profile for Chuck Tribolet  Send Email to Chuck Tribolet     
I've done a lot of photographing of computer monitors.

The picture of the greyscale screen suffers from:

Uneven ligting, some in the shade, some in the sun.

Refection of the photographer.

Dirty screen

I'd turn on the back light, have the screen clean, have
it completely in the shade, and wear dark clothing.


jimh posted 08-24-2008 03:23 PM ET (US)     Profile for jimh  Send Email to jimh     
I am going for a better solution: get a SONAR that has a screen capture function for the user. I notice that most instruction manuals have screen captures, but most units do not provide it as a user accessible function. Lowrance just added it to most of their units, and Raymarine has it in some of their units. Screen capture for SONAR is high on my list of criteria for my next SONAR unit.
Frank O posted 08-25-2008 12:00 AM ET (US)     Profile for Frank O  Send Email to Frank O     
My Lowrance LCX-25C can be set to record sonar continuously to a file which can be transferred (via SD card) to a PC, where it can be examined in a program called SonarViewer. One of the handiest aspects of this is that, when you have the viewer software running, if you mouse over any point on the display, it gives you lat/lon and depth.

Here is a screen grab from a sonar log I recorded last year of a local reef that has some fairly varied topography and a lot of fish. Note the dense school of fish midwater:

Here is a screen grab from a sonar log recorded yesterday in the area of a local artificial reef. Using lat/lon numbers from the California Department of Fish & Game, we tried some scuba dives but found only sand. I therefore thought it would be wise to meter around before diving again. Yesterday we ran back and forth over the area for quite while; it appeared fairly flat and barren except for one spot where there was a persistent school of fish midwater. We plan to dive it soon to see if there is any interesting structure on the bottom:

Although it appears as though there are two groups of fish, this actually represents two passes over the same spot.

jimh posted 08-29-2008 09:03 AM ET (US)     Profile for jimh  Send Email to jimh     
Frank--Those are nice screen shots. The false color rendering of the SONAR echoes really shows off the fish very distinctly. I think you could sell color SONAR units just by showing that screen image.
Ridge Runner posted 09-02-2008 09:17 AM ET (US)     Profile for Ridge Runner  Send Email to Ridge Runner     
I have a Eagle FishElite 642C iGPS Fishfinder/GPS Chartplotter. It can record sonar graphs and GPS data files, and you can review the data with Eagles' Sonar Log Viewer, but the issue I have is that this unit only has one SD/MMC slot so I have to take out my GPS Chartplotter card and replace it with a blank SD data card, and then I lose all my chart detail. Also I have this unit in a 16 footer so it's always a gamble switching cards and watching for saltwater spray while the Chartplotter's access door is open. You can down load the Sonar Log Viewer at no charge from the Eagle site just make sure you download the program WITH data. What you see on the demo high speed run is very close to the same data that I can capture on my unit.
jimh posted 09-02-2008 10:10 PM ET (US)     Profile for jimh  Send Email to jimh     
The LOWRANCE sonar viewer application is nice, but I am not going to buy a Windows-based computer for it. If LOWRANCE had their thinking hats on, they would have written the application in JAVA. It would be useful on many more computers. LOWRANCE does get it, however, as they wrote their updater application in JAVA, so I could use my Macintosh computer to upload a firmware update to their device. That is the sort of global thinking that will propel LOWRANCE into the lead in marine electronics if they carry on with that approach. If LOWRANCE had a JAVA-based sonar viewer, it would seal the deal for me; I'd be installing a new LOWRANCE next weekend.
Ridge Runner posted 09-03-2008 12:48 PM ET (US)     Profile for Ridge Runner  Send Email to Ridge Runner     
For those with a MAC, Sun Worksation or Unix people:

SonarViewer Image
Surface Calarity = Med
Advanced Signal Processing = High
Sonar Coler Mode = Blue
Sensitivity = 91
Colorline = 65


Note dialog box with bottom depth, cursor depth and location information. Also note balls of bait fish and large fish arches.

Ridge Runner posted 09-03-2008 12:56 PM ET (US)     Profile for Ridge Runner  Send Email to Ridge Runner     
Sorry ?action=view¤t=SonarImage.jpg

Post New Topic  Post Reply
Hop to:

Contact Us | RETURN to ContinuousWave Top Page

Powered by: Ultimate Bulletin Board, Freeware Version 2000
Purchase our Licensed Version- which adds many more features!
© Infopop Corporation (formerly Madrona Park, Inc.), 1998 - 2000.