Need an expert

 Hi guys. I have a dragonfly 5 pro and I am still trying to figure out what I am seeing. I have no problems picking up hard ground in shallow water ( under 25m) but as I get out to 30 plus I'm not sure what I am seeing. The pic I have posted I'm doing about 6kn with 43% gain. Is this hard bottom? Any help would be awesome as I am getting frustrated. Cheers

Posts: 315

Date Joined: 20/01/10

no expert

Mon, 2016-01-04 03:41

 But It looks like it has some sand/grass cover

I'ld be looking more for color similar to the "blue/white clouds " just up of the bottom ,bottom right of l/h screen but red/yellow , not familiar with the dragonfly if like the simrad sidescan would be a denser/darker white if not the red/yellow if that makes sense

carnarvonite's picture

Posts: 8132

Date Joined: 24/07/07


Mon, 2016-01-04 06:32

Good picture of sand bottom

sandbar's picture

Posts: 704

Date Joined: 25/10/09

i'm going opposite

Mon, 2016-01-04 09:23

 I'm thinking limestone ground. There is tails present and a thick bottom, I would like to know the picture speed and also frequency, should be 200hz at that depth. Colour pallette aswell can change appearance. I sometimes use black and white on my sounder as the more solid an echo the blacker it is on the screen. 


I am NO expert either and still learning so take my info lightly. 



Posts: 256

Date Joined: 13/08/11

I would also say a hard

Mon, 2016-01-04 09:45

I would also say a hard bottom, black background is usually used at night, to stop excess light in the wheelhouse, with lighter colours used during the day. Try a lighter background and you will see a bit more definition to those showings above some of that ground.

I do not know the unit or system but I would also guess at a bit too much gain or sensitivity as well.

Best tip is to just keep playing with it until you get familiar with its workings and what it does.