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Clicking noise from transducer??

Old 05-02-2008, 08:47 PM
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Default Clicking noise from transducer??

Just installed a Garmin 3006c with a gsd20 to my old transducer(not really sure what type of transucer) I hear a ticking noise in the bilge while the garmin is on. It's fairly loud---I can hear it over a pair of 225 Optimaxes! Turn the unit off and the noise goes away. Any ideas?
Old 05-03-2008, 03:09 AM
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Default Re: Clicking noise from transducer??

You must have the transducer mounted in that area,either as a in-hull or as a thur-hull mount.

The clicking is the sonar pinging of the transducer with a voltage to produce the sonic wave that is transmitted.The time between clicks is when the unit is listening for returning sonar echos between the pings.The deeper the water your in,the longer the time period between pings as the unit listens for the longer path the returning echo needs to be received.

Normal condition , nothing wrong!

Cap't Ron
Old 05-03-2008, 06:45 AM
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Default Re: Clicking noise from transducer??

Hearing the transducer over twin 225 optimax's don't sound like a normal condition to me.
Old 05-03-2008, 08:15 AM
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Default Re: Clicking noise from transducer??

Hmm dogs and cats can hear those frequencies - be careful where you stray.

Actually I'm surprised that the fish can't hear it. It should sound like a police siren to them and empty your fishing hole.

If it is mounted inside the hull you may want to double check the mounting. As Jim says, it is normally audible but it should not be that obvious.
Old 05-03-2008, 09:39 AM
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Default RE: Clicking noise from transducer??

Metal any metal under the ducer? That will make it really loud!
Old 05-04-2008, 06:20 PM
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Default RE: Clicking noise from transducer??

My Airmar B260 does the same thing. I contacted Airmar and they said this was normal and the fish aren't supposed to hear it. I don't know if that's true or not, but when I think about the noise the engines are making I guess it's not that bad in comparison. Would like to see an independent study confirming this either way.
Old 05-05-2008, 04:29 AM
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Default RE: Clicking noise from transducer??

I can hear my Lowrance transducer but not when the engines are running. In fact you have to have the engine off and listen very closely to hear it.

I called Lowrance while on the water one day and they said that was normal, I never heard it with my old transducer but does not seem to be any problem
Old 05-05-2008, 01:18 PM
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Default Re: Clicking noise from transducer??

you may just have it in a location that is amplifiying the sound. (Good harmonics) The Clicking is normal

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