Kayak Fishing Adventures on Big Water’s Edge - View Single Post

kirkdavis · 01-13-2017, 05:05 AM

I am a retired Navy SonarTech, so I get it, but it is great to see the differences that you pointed out.
As a rule with sonar, the lower the frequency goes, the further the sound will travel. The higher the frequency, the greater the resolution. Sound in the audible range is used to find big object like submarines miles away, but a very high frequency is used to see the precious baby in a mother's womb.

Even with that knowledge, I have been too lazy or preoccupied trying to catch fish to figure out how to make changes like that on my Lawrence. Dropping to a lower freq will extend the range, but it is still a high enough freq to get pretty good detail.

Thanks!

01-13-2017, 05:05 AM	#23
kirkdavis Senior Member Join Date: Apr 2015 Location: SD County Posts: 360	Great tutorial I am a retired Navy SonarTech, so I get it, but it is great to see the differences that you pointed out. As a rule with sonar, the lower the frequency goes, the further the sound will travel. The higher the frequency, the greater the resolution. Sound in the audible range is used to find big object like submarines miles away, but a very high frequency is used to see the precious baby in a mother's womb. Even with that knowledge, I have been too lazy or preoccupied trying to catch fish to figure out how to make changes like that on my Lawrence. Dropping to a lower freq will extend the range, but it is still a high enough freq to get pretty good detail. Thanks!