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Old 09-12-2017, 05:44 PM   #1
chris138
donkey roper
 
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Join Date: Apr 2009
Location: Pacific Beach
Posts: 968
Kayak Sonar Discussion

Hey Gang,

I feel like a lot of people have the same kinds of questions when it comes to sonar... Especially from those folks who have just recently got their first fish finder, or have upgraded or switched brands. In internet forums, you typically want to avoid having a bunch of different threads about the same topic. It makes it hard for people to go back and search for the info they need.

Some of you who have followed me for a while know that I like to offer sonar tips to fellow kayakers when I can. So I thought I would start my own sonar thread, and try to make it more of a centralized location for some of this info.

The format I envision is that people can ask some of their sonar questions here. I'll do my best to check in often, and answer the best I can. Other more experienced members should chime in and address whatever they want, or tear my theories to shreds if you want... I can take it don't worry (;

What the thread is NOT for: Put-downs or trolling others, arguing with others about which brand or product is better than another, online deals or people trying to sell their stuff. I use Lowrance, but I will not try to sell their stuff or try to convince you that it is better than another product. This should be the place for technical discussion and sonar theory.

I'll kick it off with a few sonar tips for beginners, and a few screen shots from my IG archives


1. Try to mount the transducer in the water. Yes, shooting through the hull works, especially if installed by experts like the guys at OEX. I've done it both ways with the same FF and trust me you are losing sensitivity and signal strength. I would go with a RAM boom arm over a through-hull install every time.

2. Use separate power supply for FF and bait tank. This is for obvious reasons, if one system goes down you don't lose the other device. An entry level sonar like an Elite 4x for example uses very little amperage without GPS. The pump will drain batteries fast, especially 12V. Learn how much juice you need for your setup, and size your batteries appropriately.

3. Stuff will corrode, and need to be repaired. Next time you're at OEX or west marine, buy a bunch of extra terminal connectors, heat shrink butt connectors, and wire. Have all that stuff with you at the launch so when your sonar doesn't turn on, you can repair it right then. Make your wiring easily accessible and give yourself extra slack in case you have to cut and reconnect.

Now the "plotter porn"

Kamakazi Yellowtail!



Fatty Homeguard Dives on my Dropper.



Slug Halibut Stacked Like Pancakes!



Looks like WSB to me... what do you think?



School of YT breezing through mid column, out on the periphery of the cone.

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