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Guest
Guest
On my boat I have a NASA target echo sounder. I found last yuaer when I was trying to use it once switched on it would read up the scale to about 90 then back down to 25 or so, never settling down to a definate reading. Is the thing dead ? and sould I replace with new one ( they seem to be quite cheap at present )? Or is it still repairable and if so how ? thanks for the help.