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Radio noise and other annoying buzzes are many times transmitted through an AM radio. Here is a check-off list of the most likely causes:
The best way to eliminate radio noise and interference is at its source. Here is a check-off list of possible solutions:
|Dimmer switch||The most obvious solution is to turn off the offending device.|
|Neighbors dimmer switch||Temporarily switch the radio from AC power to battery power to see if the interference is coming from the electrical outlet. If the noise stops, our Radio Noise Filter/Surge Protector will dramatically reduce the interference.|
|Fluorescent light||Turn off all circuit breakers to see if the noise stops. If it does then you know it is something in your house. Turn off one circuit at a time to isolate what area the noise is coming from.|
|Computer||Use a battery operated radio as a direction finder. Turn the radio until the loudest noise is heard. The front and back of the radio will usually point to the noise origin.|
|Touch lamp (even when turned off)||Carry a radio around the neighborhood. Ask other neighbors if they have problems (with radio noise)|
|Automatic on/off night lights||If a power pole is suspected, call the utility company and they will usually check the area and wash the insulators|
|Automatic outdoor yard lights||Often grounding a radio will reduce hum caused from AC line noise. Unfortunately most receivers do not have a ground connection.|
|Electronic bug and pest controllers|
|Light bulb that is about to burn out|
|Faulty electrical switch|
|Nearby television set|
|Neighbor using fluorescent lights|
|Christmas tree lights & other blinking bulbs|
|Neighbors dimmer switch (apt. complex)|
|Cell phone chargers|
|Dirty insulators on nearby power pole|
|120V AC smoke detectors (battery operated OK)|
|Ionic Breeze or other electrostatic air purifier|
|Ultrasonic motion detectors|
|Appliances with motors|
For more in-depth information about tracking down and solving interference, please read Interference: Define and Conquer by Tom Osenkowsky at Radio World.
Still have a question about radio noise or radio reception problems? Visit our FREE Online Library or call one of our technicians at (707) 725-9000.