Electronics > Projects, Designs, and Technical Stuff

Attract fish by sound, light or anything else

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i3layli:
My project right now is the depth finder. I've been looking at fishfinders and how they work and I think that's probably the best way to go - run an electronic input into a transducer and send out a fairly low-frequency sound wave since the lake will probably be deep. (Erie/Ontario).
However, I've been looking for such an ambitious soul who has posted such a schematic but no such luck. I'm a little sketchy on how to make a reciever that will take it the returning sound waves. Can anyone lend me their Genius?

grifftech:
green fish light, like these https://www.amazon.com/s?k=green+fishing+light&crid=3B24G0V264T7A&sprefix=green+fish%2Caps%2C177&ref=nb_sb_ss_i_1_10

ebastler:

--- Quote from: i3layli on May 22, 2019, 10:50:54 am ---My project right now is the depth finder. I've been looking at fishfinders and how they work and I think that's probably the best way to go - run an electronic input into a transducer and send out a fairly low-frequency sound wave since the lake will probably be deep. (Erie/Ontario).

--- End quote ---

One of us is a bit confused -- either you or me.  :P

Do you want to attract fish, as per the post title, or measure how far the fish (or the lake bottom) is away?
Why do you think that a deep lake (long distance) requires or favors low-frequency sound waves?

windsmurf:
Some good info here:
https://www.eevblog.com/forum/projects/fish-finder-sonar-circuits-protocols-and-transducers/

You can start off with a cheap one to study here:
https://www.ebay.com/itm/LUCKY-FFW1108-1-100M-Fishing-Sonar-Wireless-Fish-Finder-Alarm-Sensor-Transducer/312624224834

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