I read in !emc-pstc that Patrick Lawler <plaw...@west.net> wrote (in <h504auoohd2mcha0hqasj2n8924osvm...@4ax.com>) about 'Scope of EN 61000-4-8 (Power Frequency Magnetic Testing)', on Wed, 27 Mar 2002: >Is there a standard for magnetic field immunity over the audio range >(20Hz-20kHz)?
EN55103-2 gives a method of measurement BUT it does not set limits, because of the diversity of acceptable performance inherent in professional audio products. It requires the manufacturer to *state* the performance, so that prospective users can make an informed decision about suitability. For example, an amplifier used for sound reinforcement may need only modest immunity, but the same amplifier used in a recording chain may well need far greater immunity. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
