Y cant i mount my structure scan transducer on the bottom of the boat

On stern with transducer level with bottom of boat where attached.

Hey Joe,
Wow.. where to start.. there are so many things that will cause the issue you are describing.What type of electronics do you have? Does this happen at all speeds? Where is the transducer mounted? I need more info about when it stops reading.
1.Wrong setting on the unit
2 Bad transducer
3 Bad transducer mounting (either inside the hull or outside the hull.)
4. (In hull) Turbulence going under the boat (mine quits reading at about 55 mph @ half trim...the boat is lifting so much it causes air pockets so the transducer loses contact with the water)
5. (Outside hull) Turbulence around the bottom of the boat where the transducer meets the water.
Good luck,, when you get the info.. reply to me..

don't quite understand what your saying far as the question..when you click the page button on your unit does it show structure scan on the page and if so you go into structure scan and its not showing structure on the screen ?? maybe you need to (fine tune ) your unit or check your transducer to see if its working

Check the height of the transducer, it could be mounted too high. Most manufacturers will suggest mounting the transducer 1/8" below the bottom of a fiberglass boat and 3/8" below an aluminum boat. Check your manual for the manufacturers suggested mounting height.

well if the side scanner is a stern mount. Then opposite side would be best and scanning away from other transducer. Too much wattage and they will mix signals and give you two blank screens. You can mount together but run one at a time. Aloha

verify cable harness integrity at base connection of transducer , replace cable or check settings easy fix would be change display unit if unit under warranty as replacing transducer is not easy and economical

Hello Keneth,
Is The transducer In Side the Hull Or Mounted On The Transom?
If Inside Remove It And Re Fit It Using Epoxy Glue Ensuring No Air Pocket Between transducer And Hull.
If transom Mounted Replace Transducer.
Hope this Helps
Gordy

This problem is most likely linked with your transducer.

1. Check your transducer cable and make sure the plug terminals are clean, as well as the plug on the back of the unit.
2. Make sure the transducer cable is plugged in correctly and securely.
3. Make sure the transducer is in the water and mounted according to the directions, parallel to the bottom of the boat
4. Turn the unit on while the boat is in the water, but with the engine OFF.

IF it works when the engine is off, but vanishes when the engine is on, you may be having electrical interference.

IF it works when the engine is running, but vanishes when the boat is moving, it is a turbulence problem. Move the transducer.

IF it does not work at all, try borrowing a new or a "known good" transducer and seeing if it works then. If so, replace the transducer.

Let us know if these work or now.

You can use a thru-hull transducer but a transom mount transducer will always interference with all of that water and alot of air bubbles moving under it at high speeds.