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Side Scan SonarIn the area around Sundsvall there are plenty of known and registered foundries. So far it has been impossible to find these wrecks due to their location and also because the lack of technical equipment. Now however we have the equipment and knowledge required! We have a Side Scan Sonar!
What is a Side Scan Sonar?A
Side Scan Sonar can simply be explained as a torpedo looking iron-pole (towfish) with two
echoes attached on each side sending signals horizontal instead of vertical. The signals
are transmitted to the dinghy via a fibre optical cable where the signals are converted by
a computer into an image displayed on a colour-monitor as a 3-dimensional image. The
towfish has a search area of 150 meters in each direction.
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