Really good Video on using electronics for fishing

[Pat Smith]

THis is a very long webinar, but it covers all the different sonar technologies and how to read them. He gets very in depth on what different things are and look like with different sonar technologies. I found it very informative.
https://www.youtube.com/watch?v=icrQYU8KqIY

[DonV]

Thanks it is very well done and useful.