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Radio Noise Troubleshooting
AM RADIO NOISE PROBLEMS AND POSSIBLE SOLUTIONS
If you hear an annoying buzz when listening to AM radio, it's
most likely radio noise. Here are some of the usual culprits:
* Dimmer switch (even in an adjacent room).
* Lights: fluorescent light, “touch lamp” type fixtures, auto-
matic night lights, motion-activated outdoor lights, dying
bulbs, blinking bulbs.
* Nearby television or computer.
* Electronic bug and pest controllers.
* Faulty electrical switch.
* Radios scanners.
* Dirty insulators on a nearby power pole.
* Electric blanket.
* Smoke detectors that run from an AC current (battery
operated units are OK).
Now what can you do about it?
* Turn off the circuit breakers to see if the noise stops, and if
the source comes from inside your house. Turn off one circuit
at a time to isolate the source of the noise.
* Using a battery-operated radio, check if the interference
comes from the AC 120V line, through the air, or both. To
locate the direction of the noise, turn the radio until you hear
the loudest noise. The front and the back of the radio will
point to the noise origin.
* If the noise comes from outside, carry the radio around the
neighborhood to check for the origin of the noise. Ask your
neighbors if they hear the same noise.
* If you suspect a power pole, call the utility company. Dirty
power pole insulators are sometimes a cause of hard-to-find
radio interference.
Page 20 Sonido Radio
For more information on Radio Noise Troubleshooting, go to
www.ccrane.com/radionoise