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about knowing density of surface under water : is dense or soft?

Former Member over 9 years ago

hi
i am user for garmin 521s.

in sonar usage : which color ( white line ? yellow line ? red line ? orange line ? ) shows soft floor under water? . which color shows dense ( like stones ) floor under water ?

thank you very much.

0 Former Member over 9 years ago

colour of sea bed in garmin 521s

hi
i am user for garmin 521s.

in sonar usage : which color ( white line ? yellow line ? red line ? orange line ? ) shows soft floor under water? . which color shows dense ( like stones ) floor under water ?

thank you very much.

i mean : what is colour of sea bed ( floor) with deferent densities ( sand ? stone ?) in garmin 521s