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ContinuousWave: Small Boat Electrical
Depth Sounder Clicking Sounds
|Author||Topic: Depth Sounder Clicking Sounds|
posted 03-13-2008 02:58 PM ET (US)
Was out on my boat today on a beautiful day in South Florida balloon fishing for whatever. Everything was shut down on the boat except the chartplotter/sounder. I heard a clicking sound that I never heard before coming from the bilge area and opened the hatch and thought it may be coming from thru -hull transducer but couldn't be certain.
Turned off plotter sounder but noise continued for 30 seconds or so. Turned back on and clicking resumed. Seems obvious it is transducer but it continued after I turned unit off.
1.Do depth sounders produce an audible clicking noise? 2.Would noise continue after unit was turned off for 30 seconds or so?
Plotter sounder is Raymarine C80 on a BW Conquest 305.
posted 03-13-2008 04:47 PM ET (US)
The ticking is the "pinging" (pulsing) of the transducer. Fishfinding sonar operates in the active mode vice passive mode - meaning it is always pinging down and bouncing its electronic "cone" toward the bottom.
posted 03-13-2008 08:34 PM ET (US)
You have good ears. Be thanksful.
The transducer sends a pulse whose freq is WAY beyond what
posted 03-14-2008 10:14 AM ET (US)
Hold your hand under it.
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