The first steps... The first steps...

The first ever fishing echosounderscame from Simrad in 1957. This gavethe fisherman a real advantage in beingable to see the depth, bottom contoursand even fish! In 1962 transistors replaced radio valves reducing size and power consumption dramatically.This enabled echosounders to be used on much smaller fishing boats. S160 Echosounder - 1970 CK Scientific echosounder - 1962Partnersounder - 1967