Hi Kathy You wrote:
> > I am a safety person who needs to answer a question > from one of our sales people on the question of > "EMC" verses "RFI". > > Is there anyone out there who can explanation the > differences between "EMC" and "RFI" and how they > relate to each other. > Essentially : EMC is Electromagnetic Compatibility, the ability of equipment to neither produce interference, nor be affected by interference from others. RFI is Radio Frequency Interference, which strictly means undesirable intrusive Radio Frequency activity. (I believe RF is 100kHz to 30MHz). i.e. the stuff that EMC tries to ignore! Nowadays the more common and more useful term for such interference is EMI (Electromagnetic Interference) which is the same thing but with no implied frequency range (d.c. to Light) For interest, and to see if I can remember: AF = 0 - 30kHz LF = 30 kHz - 100kHz RF = 100kHz - 30MHz HF = 30MHz - 100MHz VHF = 100MHz - 700MHz EHF etc. etc. I'm probably wrong, usually am. Chris Dupres EMC Specialist. VG Microtech. [email protected] tel +44 (0) 1825 761077 fax +44 (0) 1825 768343 'Opinions expressed are personal, not necessarily Corporate'
