Allan Tarvid, Author at Carolina Sportsman

Sonar operation is really pretty basic.

Fish finders change their appearance and add new features each year, but the principles of sonar haven’t changed since World War II. […]

Not all batteries are created equal

Allan Tarvid

Many fishermen and boaters call any sealed, maintenance-free marine battery a gel battery, and that isn’t correct. […]

GPS: Quest for the bullseye

Allan Tarvid

GPS units navigate by satellites that circle the earth twice a day at an altitude of almost 11,000 miles, yet the system can take you back to within a boat length of a location you saved in memory. […]

Side-imaging opens new worlds

Allan Tarvid

The basic principles of sonar are tied to the laws of physics and can’t change much, but Humminbird’s Side Imaging feature proves that sonar’s application to sportfishing is still evolving. […]

Dying batteries give warning signs

Allan Tarvid

When you fire up your computer and get a warning message reading, “Hard Drive Failure Imminent,” you pretty well know what is about to happen. […]

One size definitely does not fit all

Allan Tarvid

Have you ever wondered why your trolling motor doesn’t run as long as you think it should between battery charges, or why your batteries don’t last as long as you expected?

It could be that your batteries and charger just don’t get along. […]