It is a rather common issue to pick up radio frequencies through computer speakers. It is possible for the speaker wires, both to the computer and to the electrical socket, to act as antennas and pick up an especially strong AM frequency. The signal may be a fluttering of voice or it could sound as if your speakers are directly connected to an AM radio. You can take steps to alleviate this issue.
- Skill level:
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Things you need
- Wire ties
- Ferrite rings
Measure the distance required to span wires from the speakers to the port in the back of the computer, as well as to the A/C outlet, if applicable.
Unplug the wires from the audio port and the power source.
Fold the wire over itself and secure it with wire ties. By decreasing the surface area of the cord, you make it a less adequate antenna and thus reduce the likelihood of picking up a radio signal. If this does not work, you may need to spend a small amount of money.
Purchase a snap-on Ferrite ring from an electronics store (see Resources) for each of the wires running from your speaker set. You will likely require two -- one for the audio cord and one for the power cord. These are small devices that snap over a wire and effectively block radio frequency interference. They will prevent your speaker wires from acting as antennas.
Unplug your audio cord from the back of your computer and your power cord from the power source.
Wrap each cord around an opened ring a few times. The Ferrite rings should be within an inch of the speakers when installed. The devices are very small, so wrapping a few coils will still leave adequate length.
Snap the Ferrite rings closed around the wire coils. The wires should all run through the centre of the device and wrap around the outer edge. Once complete, you should have no more issues with radio interference.
Tips and warnings
- Radio interference is less of an issue with more expensive shielded computer speakers. By purchasing a better quality pair of speakers, you may avoid this issue altogether.
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