Thread: Down Imaging vs Side imaging vs neither

Originally Posted by Vik3

I do not like dedicated DI units, because they are less informative than SI, and this is just a mixture of the left and right part signals of wide flat beam - stronger left/right signals kill weaker right/left signals, this is why a bottom looks always much brighter and there is no any shadows on the bottom in DI mode. DI on SI units even worse case – complete mixture of the left and right sides:




I would do slight correction of the SI units software, and show SI sides in convenient DI mode. It would be the same water column with keeping all details on the bottom and in water column related to the left and right sides separately. It would be a real true DI view, even better than in LSS, because its DI is a mixture of the left and right part signals of 60 deg. flat beam as well.

Actually, it wouldn't be a true DI image, since it's only taking the SI images and turning them. That's what HB does with its DI image, anyway, since it doesn't have a dedicated DI crystal in the tdx.

This is a true DI image :



Granted, it's from a DI only unit ... but, the information on the image is more defined than a tilted upright SI to DI image. IMHO, that is.

... cp