Welcome to Bucaro TecHelp!

Welcome to Bucaro TecHelp!
Maintain Your Computer and Use it More Effectively
to Design a Web Site and Make Money on the Web

About Bucaro TecHelp About BTH User Agreement User Agreement Privacy Policy Privacy Site Map Site Map Contact Bucaro TecHelp Contact RSS News Feeds News Feeds

Receive notification when a new article, information, or content has been posted to this website.

Email address:


Powered by FeedBlitz


Victims of Sandy Hook

Stop the Slaughter of Innocents. Congress is bought and paid for by gun lunatics and gun promotion groups. If you want to live in a safe America, help buy Congress back for America. Send a donation to Mayors Against Illegal Guns, 909 Third Avenue, 15th Floor New York, NY 10022

PC Technician's Guide to EMI (Electromagnetic Interference)

Computers are high-speed digital devices. That means their internal signals are high-frequency electric pulses. In 1886 the German physicist Heinrich Rudolph Hertz demonstrated that rapid variations in electric current could be emitted into space in the form of radio waves. When these radio waves interfere with the operation of nearby electronic devices, it's referred to as Electromagnetic Interference or EMI.

The high-frequency digital circuitry in PC's can cause EMI that interferes with the operation of nearby electronic devices. For this reason the Federal Communication Commission (FCC) regulates emissions in the United States. PCs are required by the FCC to be certified as Class B devices. This certification limits the amount of EMI that a PC can produce.

PCs can also be affected by EMI from other electronic devices. Potential sources of EMI are any type of radio transmitter, or any device with a coil or solenoid, or transformer, such as a doorbell, toaster ovens, electric blanket, electric bug zapper, heating pad, and may other electric devices.

Radiation spreads out as it travels away from it's source. Following Newton's Inverse Square Law the intensity of radiation drops off rapidly with distance. Therefore the main method of protecting PC's and other electronic devices from EMI is to separate them in distance. If the EMI from an electronic device has sufficient energy and is close enough to another device, they will cause interfere with that device. Devices that emit EMI should be kept a distance from PCs, peripherals and media.

More Windows Troubleshooting Articles:
• Windows 7 Startup Modes for Troubleshooting
• First Stop When Troubleshooting Windows 7 - Control Panel
• Troubleshooting Windows 7 Inside Out
• Fix CD Writer Buffer Underrun Errors
• Repairing Internet Explorer
• Problems with Floppy Disks
• Stop Hard Disk Thrashing
• Wireless Router Problems and Solutions
• Free Detailed PC Analysis
• How to Troubleshoot and Repair Optical Drive




RSS Feed RSS Feed





Computer Sections

Click Here! Free PC Technical Support

Troubleshooting Windows 7 Inside Out

A reader from Rockster, Illinois says, "... The book has great tips for optimum configuration, diagnosing problems, setting security, disaster recovery, common annoyances and how to get around them. This is a great reference book that the beginner or advance PC user will want to keep handy. There is so much information in this book that even the die hard computer geek who thinks he/she knows everything about computers should find something here that they didn't know and can put to good use." Click here for more information.

[Site User Agreement] [Privacy Policy] [Site map] [Search This Site] [Contact Form]
Copyright©2001-2014 Bucaro TecHelp 13771 N Fountain Hills Blvd Suite 114-248 Fountain Hills, AZ 85268