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nek877
Guest
Hello there. I have a problem with my Furuno 1870F and Suzuki 90DF model 2006. When the engine starts the Furuno screen fullfills with noise. Is there any solution for that problem? :furuno :furuno :furuno
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I am sure there is. It sounds like your alternator(s) is feeding AC noise into your DC power system. I would recommend you have a dealer look at your power system. You could also look into putting your electronics on a filtered power system like a NewMar Start Guard device.
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nek877
Guest
Even if I use separate battery for my unit the noise exists... :huh
Then you must have either the power or the transducer wire running alongside the wiring of something your engines are connected to OR the noise is in the freq range of the sounder and being picked up by your transducer. A transducer is basically an underwater antenna. You would need to find the source of the noise and repair it. I would think the alternator would be one of the most likely items to put your focus.
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nek877
Guest
At first i want to thank you for your answers and your valuable help! So because i m not a technician aparrently... What i have to check to the alternator? And how to start fixing it?
Do you own an Oscilloscope?
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nek877
Guest
Sadly no! But I will find a way....
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nek877
Guest
What I do with the oscilloscope?
Check your DC power system for AC ripple/noise coming from your engines/alternator.
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nek877
Guest
i understand and i admire your help. I found this on e bay
https://www.ebay.com/itm/DSO112A-Handhe ... 7VNcTNHYiw
do you think it will be helpfull for my problem?
https://www.ebay.com/itm/DSO112A-Handhe ... 7VNcTNHYiw
do you think it will be helpfull for my problem?
Because it will need to be fixed once you find the source of the noise; I recommend you contact someone qualified on electrical and engine systems.
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