RE: Testing a fishfinder?
Well it was easy to tell it was not dead. When I plugged it in, I could both hear and feel the pulses. It actually read the distance to a wood paneling wall. The distance was about 4.5x the actual distance probably due to the reduced transmission of the pulse. After that I put the xducer into a 5 gallon bucket. You could easily hear the pulse and if I held it right, it would read about 2 feet when it was at the top of the bucket. I guess thats as goof of a test as I'll get for now.