Mysteries Of Lowrance Electronics - Part 1 by Ken Sauret

Mysteries Of Lowrance Electronics - Part 1 by Ken Sauret



mysteries of

Story & photos




n this issue of


online magazine,

I would like to ad- dress some of the com-

monly asked questions

along with some inter-

esting questions that

some of you may have

wondered about, but

have yet to delve into.

There won’t be a lot

of pictures or short cuts to


your electronics. Time spent mastering these small

“computers” on your boat will separate you from over

half of your competition.

To get the most out of your electronics and to

make you a better fisherman is the goal for all my

readers to get from my writing about Lowrance


I can’t stress enough the value that these little

grey boxes on your boat have to your success when

you spend the time to learn how to maximize their

use. These things can save you time on the water

finding fish and money on gasoline so you’re not just

running around looking for fish.

Example, the shoreline points where everyone

else has been looking gets pounded over and over, so

learning your electronics will give you the confidence

to search for new offshore spots. As you have all

heard before, CONFIDENCE is the best thing to have in

your boat and knowing how to apply the information

that your electronics can give you, WILL give you


With that being said, here are a few questions and

answers that possibly can help you.



I had my new

rig on the water

for the first time

yesterday. The

boat came with

an HDS 7 Gen 2 at the

console. Love the unit, but

at times I lost the depth

readings. Sometimes I

would lose the reading

when I was running and other times I would lose the reading when sitting still. I have a transducer that is mounted inside the hull, a through hull transducer.


There may be an air bubble in the epoxy under the transducer or more rarely, in the fiberglass of the bottom of the boat. An air bubble will deflect the “ping” just like when you can see the air bubbles in the water column. In this case you, would need to remount the transducer a couple inches to one side or the other and see if you have “clean” epoxy and fiberglass.

Something else to check is the transducer setting in the HDS 7. Look at the chrome tag on the transducer cable to find the model number of your transducer. Then, when you go to the SONAR SETTINGS menu, look at the bottom of that menu and find TRANSDUCER TYPE The default setting is UNKNOWN, because Lowrance doesn’t know which transducer you may be using in your application. Highlight this box, hit enter and locate your transducer model number on the list, highlight it and hit enter.