here are a couple of excellent sonar and side imaging tutorials that may help some of the guys on here that are trying to learn more about their graphs.
ever wonder why there seems to be two idential trees on side imaging under the boat or two bait balls on each side:
https://youtu.be/ertZn4ypTbQ
here is a good one on 2d sonar and down imaging. just substitute a 77 or 83khz cone for the 50khz example he uses on 2d. keep in mind what he said about dead zones and that one fish actually marks the bottom. a 200khz signal will mark true bottom and wont have the dead zone effect due to its smaller cone.
https://youtu.be/R4T0Tuv6RvY
ever wonder why there seems to be two idential trees on side imaging under the boat or two bait balls on each side:
https://youtu.be/ertZn4ypTbQ
here is a good one on 2d sonar and down imaging. just substitute a 77 or 83khz cone for the 50khz example he uses on 2d. keep in mind what he said about dead zones and that one fish actually marks the bottom. a 200khz signal will mark true bottom and wont have the dead zone effect due to its smaller cone.
https://youtu.be/R4T0Tuv6RvY
