[Be sure to click through all the images in the gallery above. The last image includes specs and prices of four sonar-charting programs from top-of-the-line manufacturers.]As a child, I often played in the neighbor’s sandbox. We piled up the coarse, white soil to create castles and forts, and dug moats to protect them.The swift tidal currents in my home waters of coastal Georgia seem to “play” the same game. Any given season, a new sandbar appears or a once-navigable creek mouth silts.Federal charts simply can’t keep up with those shifting soils. But now anglers can create their own local navigation maps, and even see detailed, contour soundings of favorite fishing spots — all using their own fish finder and its record function.“The speed of satellites and transducers has advanced to give us the capability” to record sonar with ...![Sport Fishing Mag]()
