Text version of the page 
Size mattersSize matters
Takes fishfinding to a new level Simrad has always shaped the echosounderlandscape but in 1984,it changed forever.
Research into split-beam technology was
about to pay off with the release of the
Simrad ES series.Early echosounders gave different results for same sized fish,depending on where in the beam they were located.This is because the beam strength gets weaker away from its centre.Split-beam technology
measures the exact position of the fish in the beam,and compensates to give an exact
picture of the fish making it possible to measure size distribution in advance.As a tool for the fisherman,split-beam technology is one of the most invaluable that has ever been created.Simrad’s dedicated approach to research,and its long standing commitment to the needs of
the fisherman made this possible.
1989 saw Split-beam techno-logy taken one step further withthe introduction of DynamicRanging, which covers all signals from the smallest to the largest from plankton towhales. The first Echosoundersfrom Simrad using this method set standards, which still exist today.
White line, bottom lock and A-scopepresentation.Split beam display. Multi-frequency presentation. 1 2 3 4 1
Fish Size histogramFish PlotEchogramBottom Expansion 2 3 4