Call them whatever you like …… Depthfinders, Fishfinders, Graphs, Sonars, Scopes ……these names are used interchangeably
and all refer to the same type of electronics.They are arguably the most important piece of electronics for safe boating …..
and for finding fish.
The basic principles of how they operate go back to the turn of the last century, when scientists learned
how sound waves moved through water, and how to measure the sound waves.More recent advancements have given us larger screens
with brilliant colors and vivid detail that are easily viewable in direct sunlight, dual frequency options, and the ability to network
together multiple units, sensors and transducers.
