This is worse now that so many people are putting plastic
windows in their computers so they can see the wires. These
modified cases are not FCC legal in homes IF anybody
complains about interference.
|
| | > Whenever I am using my pc I always get Interference in
AM radio
| Stations???
| >
| > Could you please tell me why this is happening and how I
can fix it???
| >
| >
|
| This is normal (and unavoidable). Computers generate RFI.
Go to Google
| and look up "Radio Frequency Interference".
|
| The simple answer is that there is always going to be RFI
near a computer,
| and there is no way to shield it out 100%.
|
| The fix?---Move your radio away from the computer.
|
| The following is from:
|
http://fusioned.gat.com/Teachers/Curriculum/Curriculum-HTML/T20s-shield.html
| "For radio communication, radio-frequency interference can
be a big
| problem. Just about every electronic circuit that has
changing or
| oscillating currents in it will radiate electromagnetic
radiation, a lot of
| it in the range of frequencies that includes radio and TV.
Most electronics
| products have to be shielded so that they don't interfere
with other
| devices or disrupt radio and TV communications. This is
why so many
| electronic products carry a label that shows that the
device is approved
| for home use by the Federal Communications Commission
(FCC). Computers
| especially produce a lot of electromagnetic radiation
because there are so
| many electrons being accelerated in the circuits as the
computers do
| calculations. If you take a radio which is not tuned to
any station and
| hold it near to a computer, you will be amazed at how
strong the signal is.
| You can actually hear it work, just like the CIA tries to
hear the
| computers working in foreign embassies. You have to try to
put a metal
| shield box around all the radiating circuits to keep the
electromagnetic
| radiation inside the computer if possible and if you look
inside the
| computer, you will see that the designers did just that.
Nevertheless, your
| computer is a rather good radio transmitter."
|
|
|
| jim menning
|
|