Hi all,
I have been trying to mount a quadrabeam transducer on a old inshore trolling boat. I thought I had been following the instructions from humminbird pretty well and I was pretty confident it would work before I took the boat out for a tryout a few days ago. The site chosen is probably not ideal, but its were I fish.
1. Very sharp fall offs from a few meters to about 200-300m (600-900ft).
2. Freshwater on the top and salty under.
3. Sharp thermoclines.
4. Some wave action.
I had intermittent bottom contact at 83khz down to about 120m, but for the most part I had problems when the depth exceeded 50m. I had no contact when the boat had above trolling speeds. I had no problems finding my cannonball on the screen and I did see some exciting curves here and there down to about 40m. Could it be the angle of the transducer?
I have tried the position shown on the images and a lower position, but it did not show any noticeable difference. Can this be attributed to bad conditions or should I look for a better position of the transducer. I do think there could be some air moving along the bottom of the hull. Should i move it to a position just in front of the engine? Any ideas?
Thanks!
Espen.