Author Topic: recordings  (Read 8042 times)

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Offline johno r

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recordings
« on: June 22, 2010, 03:07:34 AM »
When i make recordings the images has a lot of interference in the water colum on the right , the left has some up high but i can live with that,a snap shot of the same sounding looks ok and the screen looks fine, in shallow water it is worce witch is most of my soundings but in 100ft of water it is not there , the screen seems to be brighter on the right sometimes . my transducer is on the right and lifting the motor makes no differance .it is on a 14ft tinny . i have tryed lowering the transducer to 2" below the bottom of the hull but no differance. any idearsila_renderedila_rendered


Offline johno r

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Re: recordings
« Reply #1 on: June 22, 2010, 03:30:25 AM »
some outher shots

Offline pig75

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Re: recordings
« Reply #2 on: June 22, 2010, 05:45:53 AM »
I have never seen the bottom look like that up the boyne river
we will have to go out to the dam and compare readings one day

Offline sonar2000

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Re: recordings
« Reply #3 on: June 22, 2010, 06:19:15 PM »
Actually they dont look all that bad.  You might want to play with settings a bit.  go thru your menus and tweek them a bit.
Make sure the transducer is level with the water top and not tilted.

Chuck

Offline RGecy

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Re: recordings
« Reply #4 on: June 22, 2010, 08:09:15 PM »
Johno,

The first image has almost a ghost image effect in the water column which is very unusual.  This was showing in the software, but did it do the same thing on your unit?  Lets eleminate any issues by not including HumViewer.  It may have some issues with the recordings but they display normal on your unit.

The other images you posted do not show this effect.  If you have some snapshots that show the same thing, please post them.

Have you tried your head unit on someone else boat to see if it happens the same?  If it does we know it is your unit and then we can try a couple different things.

Check all connections and make sure they are tight.  Please describe your setup in detail so we know what components you have and whats connected to what. 

You could try backdating the software on your unit the previous version and see if you have the same issues. 


Robert




 
Humminbird Guru and Forum Administrator

Offline johno r

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Re: recordings
« Reply #5 on: June 22, 2010, 10:09:40 PM »
I have the 798cx si only have gps conected running off its own battery no outher elect running of it . 14ft alloy flatish bottom boat . if i turn up sensitivity on the unit i get similur readings. posted snap with sensitivity of 11 and the higher you go the worse it gets.ila_renderedila_rendered

Offline RGecy

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Re: recordings
« Reply #6 on: June 22, 2010, 10:18:02 PM »
johno,

Can you post some pictures of your transducer installation?  Straight on and also from the side, close up and overall view. Make sure we can see across the transom and trim down your motor into normal position if possible.

Something that makes me wonder is the strong sonar return just to the left of the center line.

Robert
Humminbird Guru and Forum Administrator

Offline johno r

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Re: recordings
« Reply #7 on: June 22, 2010, 10:22:16 PM »
Robert will get some photos .tryed lifting the motor out of the water and still the same readings

Offline johno r

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Re: recordings
« Reply #8 on: June 22, 2010, 10:25:00 PM »
pig 75  might be out on the weekend give me a call or drop up will show you where it is

Offline johno r

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Re: recordings
« Reply #9 on: June 23, 2010, 02:14:57 AM »
transducer picks at present position have had it higher with no differance to side image but very little reading of normal soner on the plain at 44kph where it is now get good soner at speed [ Attachment Invalid Or Does Not Exist ] [ Attachment Invalid Or Does Not Exist ]

Offline johno r

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Re: recordings
« Reply #10 on: June 23, 2010, 02:37:06 AM »
woopsila_renderedila_rendered

Offline johno r

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Re: recordings
« Reply #11 on: June 24, 2010, 04:49:32 AM »
more snapshotsila_renderedila_rendered

Offline johno r

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Re: recordings
« Reply #12 on: June 24, 2010, 05:23:34 AM »
snapshot from simulation on unitila_renderedila_rendered

Offline pig75

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Re: recordings
« Reply #13 on: June 24, 2010, 06:54:32 AM »
This is what i get up at the boyne river
ila_rendered

Offline johno r

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Re: recordings
« Reply #14 on: June 24, 2010, 03:30:54 PM »
pig75
        will you be around on the weekend would like to compare readings

Offline pig75

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Re: recordings
« Reply #15 on: June 24, 2010, 05:52:52 PM »
Yes i will be here


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