This video may help some folks starting out with Equinox. This video focuses mostly on pinpoint. And how pinpoint signal can be aligned and misaligned with depth meter indications - giving clue to operator of coin sized targets and that of bigger junk targets.
https://m.youtube.com/watch?v=agycqlhlO4E&t=305s
https://m.youtube.com/watch?v=agycqlhlO4E&t=305s