

It’s an interesting video, you can see the sizes and form factor of the recievers this way much better. You can still skip the parts you are not interested in.
The quick start guide from the link in the description if you just want to read numbers: https://static1.squarespace.com/static/669856991b982007b8a6a788/t/67af70bd5fc318472e2f9f1a/1739550910959/Evaluation+Kit+-+Quick+Start+Guide.pdf
Fish ladders are common things on dams nowadays. The only speciality I see here it’s between sea and a lake.