It has been my experience that high frequency sonar beam coverage is very similar to that a of vehicle’s high beams on the road at night.
There is what we can call the primary, or high power area, and then the peripheral area.
It is because of this peripheral light that we can see the reflective material of road signs so clearly at night. Now if fish were covered in the sonar version of reflective tape, then this peripheral ‘light reflection’ would be fine. But they are not.
Would you feel safe driving at night with your high power beams shining off to the left and right leaving only the peripheral light shining dead ahead of you?
So when you are looking for a high frequency Side / Down Scan sonar, make sure your Hi-Def transducer is capable of ‘High Beam’ in the Left, Right and Down Scan.
There is what we can call the primary, or high power area, and then the peripheral area.
It is because of this peripheral light that we can see the reflective material of road signs so clearly at night. Now if fish were covered in the sonar version of reflective tape, then this peripheral ‘light reflection’ would be fine. But they are not.
Would you feel safe driving at night with your high power beams shining off to the left and right leaving only the peripheral light shining dead ahead of you?
So when you are looking for a high frequency Side / Down Scan sonar, make sure your Hi-Def transducer is capable of ‘High Beam’ in the Left, Right and Down Scan.