Scott McIntosh (Lazybugger) has successfully mounted his transducer under the kayak seat so I thought I would try this method (thanks Scott for the idea). I placed the transducer in a plastic bag containing water, put the kayak in a river, connected the battery, then moved the transducer around under the seat until I found a point where the signal passed straight though the hull (i.e. the glue between the outer shell and fish box contained no air bubbles). Having found the spot I marked it.
Using a block of high density foam (cost $5) I cut out the shape of the transducer (must be a tight fit) and glued it in place at the marked spot under the seat. The position under the seat is ideal as it is too small to store anything else and is out of reach when you are in the kayak, so is effectively wasted space. I used T- Rex Power Bond, but whatever glue you use the seal between the kayak and foam must be watertight as you will need to put some water in the hole before inserting the transducer.
|Hole cut in the foam to house the transducer (view from underneath)|
|Transducer inserted in the hole in the foam|
|Foam glued in place under the seat|
|Small battery - with a 50 cent coin for scale|
Inside the hatch I have glued in two straps retrieved from a discarded back pack which I use to strap the sounder box in place while crossing the surf zone.
|Sounder in the box|
|Sounder box mounted on the hatch lid with Velcro|
|Straps on the bottom of the fish hatch to attach the sounder box|
|Sounder box strapped in for crossing the surf zone|
That's it. A method worth considering if you want to easily remove your sounder after each trip or if you don't want to take the knife to your nice new Stealth yak!