The Lowrance Fish-Finder is the very same brand that my grandfather trusted, and my father does. Both loved to fish, but both were impatient and wanted to know where the fish were. The Lowrance Fish-Finder, always towards the top of the technology game, worked the very best on their behalf. (I am sure it was everything kept them from using one fourth stick of TNT)
My grandfather loved new technology, having been an employee for McDonnell Douglas, as well as on the Apollo missions. (I have the NASA pens to prove that. ) Before that he served within the U.S. Navy, So when he said that Lowrance was the very best product for that price. Grandpa were built with a much older unit, actually he'd a few in his time but the last was the Lowrance X 15. If he remained as with us I understand he would possess the H.D.S.8. Much like I do.
My father on the other hand often uses his Lowrance H.D.S.7 to pre-load routes before an extended fishing trip, Then he would edit them while we were underway. The Lowrance H.D.S.7 allows Dad to keep routes for future use.
While pop's (my step father) Loves the Lowrance H.D.S.10 it is ideal for his fishing-boat using the built-in cartography choices including Enhanced U.S. Base map and Coastal coverage of the U.S. and the Navionics (R) World Background map (non-Americas) both very useful to him.
Starting out in 1957, the first Lowrance Fish-Finder went for $150.00 while some went for $2000.00. They were then and I believe the cost effective for the hard-earned dollar. There are lots of internet sites where one can read about various Fish-Finders. But buying the right Fish-Finder for you, and also the kind of fishing you will be doing whether it's a hand-held model or perhaps an H.D.S.-7. The Lowrance Fish-Finder is the fisherman's dream, since it not only enables them to see where the fish are, but will also demonstrate should there be weeds of other obstructions that could be a hindrance. They use sound navigation and ranging (SONAR) technology to emit an electronic sound signal that echoes back to the unit providing the underwater information. This is much like what dolphins and bats do naturally.