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Old 21 November 2013, 02:04   #1
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hi wondered if any of you guys can help, I have a garmin 551s and im sure im not interpreting info and colour on screen , ii have tried fishing ,catching nothing and getting cheesed off , for a novice on garmin colour plotters what do the colours of sea bed determine and should sonar settings be in auto mode? ,any help would be much appreciated all in novice wording lol thanks in advance for any help , the manuals you get with them do not help at all
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Old 21 November 2013, 02:54   #2
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I've just checked that it's not April 1st?

You have a Humber 7m+ and a 250hp engine according to your profile and don't know anything about depth contours and what colours are used to differentiate depth of water at LAT?

I seriously urge you to get yourself booked onto an RYA shorebased Day Skipper course in order to gain a basic understanding of charts before venturing out again.
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Old 21 November 2013, 03:46   #3
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There are several videos on you tube that might help.
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Old 21 November 2013, 04:21   #4
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I've just checked that it's not April 1st?

You have a Humber 7m+ and a 250hp engine according to your profile and don't know anything about depth contours and what colours are used to differentiate depth of water at LAT?

I seriously urge you to get yourself booked onto an RYA shorebased Day Skipper course in order to gain a basic understanding of charts before venturing out again.
A tad harsh that reply, he isnt referring to depth contours of a plotter but the different colours which show up on the sonar screen as you move through the water indicating things like sea bed makeup, temperature contours (thermoklines etc). I have an old Garmin unit, I will look up the colours later and post.

This ribnet forum is suppossed to be about sharing and learning.
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Old 21 November 2013, 04:37   #5
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An in-depth look at Garmin sonar Garmin Blog
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Old 21 November 2013, 04:48   #6
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Originally Posted by boristhebold View Post
A tad harsh that reply, he isnt referring to depth contours of a plotter but the different colours which show up on the sonar screen as you move through the water indicating things like sea bed makeup, temperature contours (thermoklines etc). I have an old Garmin unit, I will look up the colours later and post.

This ribnet forum is suppossed to be about sharing and learning.
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Old 21 November 2013, 06:31   #7
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many thanks guys for the replies , this is exactly the info I wanted , will have a good look when I get home
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