PC Speaker Interference Fix
I have an old pair of speakers that I use sometimes to test MP3 players, laptops and PC’s.
The problem is these speakers pick up a lot of radio frequency interference. You will hear everything from amateur radio to ambulance EMS. They are poorly made and not shielded very well.
To fix this problem I decided to use
some ferrite core RFI noise suppressor cable clips.
Some of these I purchased and some I salvaged from old computer monitor cables.
In the picture above is what I used.
The zip ties help to hold the ferrite cores in place so they do not slide down the cable. I placed one on each speaker. This fix worked I have not had any more issues with RFI interference.
This article was prepared for you by Mark James; Pennsylvania U.S. Mark is a computer Technician and electronics hobbyist. Holds two associate degrees one in Computer systems technology and one in electronics engineering technology.
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Note: You can check his previous repair articles on Realistic Cassette Recorder Repair
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Tayo
July 27, 2024 at 8:24 pm
If I hadn't read about this here I would say HOGWASH!
But good idea using the ferrite cores. I often seen them used (and abused) on electronics for seemingly no good reason at all. Im a believer now
Mark J
July 28, 2024 at 3:03 am
This is the second time I had this happen. That is why I buy better quality name brand speakers now. The ones shown in this article I only use for when I need to test something real quick that I am working on.
Albert van Bemmelen
July 27, 2024 at 8:53 pm
Fixing RF interference problems can be very tricky. Lucky here an easy fix solved the issue.
In the 50's of the previous century mopeds didn't have decent moped ignition suppression yet. In those days the high voltage sparks caused interference issues on all television sets when they drove by. The sparks were picked up in the antenna's and interfered on the AM transmitted video signals. Soon after that regulation came in effect to make RF suppression obligatory on all moped motors. Which solved the problem.
Mark J
July 28, 2024 at 3:23 am
Some of it has to do with where I live. Two blocks behind me there is a house with an amateur radio antenna in the back yard. Another three blocks away is an ambulance station. This is the second time this has happen to me. I had another pair of poor quality speakers that picked up the sparks from my gas stoves igniter. The speakers would make a clicking sound. My Logitech and Magnavox work great without any interference.
Waleed Rishmawi
July 27, 2024 at 9:47 pm
Thanks for sharing your repair success. I have not defaced this kind of issues before so I have learned something new today. Have a blessed day
Mark J
July 28, 2024 at 3:25 am
Waleed Rishmawi Thank you.
Joseph
August 17, 2024 at 12:27 pm
I notice that Some pc speakers pickup signal when your phone recieves incoming call or messages. Ill try this one if can solve the issue.
Mark J
August 18, 2024 at 3:59 am
Joseph I hope it works for you.
Yogesh Panchal
July 28, 2024 at 12:25 am
Mark James,
Good Idea!
Mark J
July 28, 2024 at 7:33 am
Yogesh Panchal Thank you.
Parasuraman S
July 28, 2024 at 5:01 pm
News to me! I learnt a lot from this article! I used to wonder why they used this type of ferrite core and now I know! Many thanks for sharing!
Mark J
July 29, 2024 at 12:14 am
Parasuraman S You are welcome. I enjoy learning new things and sharing knowledge.
Imoudu.O
July 29, 2024 at 5:00 am
I have been seeing this thing named ferrite core attach to cables, but i don't know what they are meant for nor what is call, lately i saw a phone charger cable having one on it.Now i know what it is! thanks for sharing.
Mark J
July 30, 2024 at 1:56 am
Imoudu.O You are welcome.