Send a Strong Signal.
Everyone’s familiar with fishfinders; they’ve been around for years. But if your boat operates in deep water and you need outstanding resolution for, say, serious offshore fishing, your boat should have a modular electronics network composed of individual components instead of an all-in-one fishfinder. A key component of such a system is the sounder module, which powers and controls the transducer and feeds data from it to the network display. That data contains the bottom profile and images of fish and any other objects in the water column, images that are much more accurate than those from a fishfinder. A properly selected, installed, and working sounder module can not only help you catch more fish, it can also improve your navigation skills by giving you accurate depth and bottom-contour information that you can compare with paper charts. In that regard you could say that a sounder module is a piece of safety equipment.
Read Bruce Pelkey's full review here
VHF radio review
Everyone understands the importance of a VHF radio. A fixed-mount unit provides a key communications link to other boaters, the Coast Guard, and local police. If you travel offshore, a VHF may be your only means of requesting assistance. On the other hand, if disaster strikes or your boat loses power, a portable handheld VHF could make the difference between inconvenience and calamity.
Read Bruce Pelkey's full review here