We have a Deeper DP4H13S10 sonar, and the goal is to increase its signal range.
The original Deeper Range Extender costs about €195.
How can we solve this using what we already have? And even make it better?
It’s very simple.

Hi-Fi Walker H2 player repair with a problem - overheating and doesn’t turn on.
Noises are heard when shaking. Means components inside have fallen off.