Kristiaan, The test procedures of ANSI C63.4-2000 must be used, even when testing to the limits in CISPR 22. The 10 meter test distance is fine, but to the extent that the test methods differ, ANSI C63.4 must be followed. Don't forget that if the product has a clock higher than 108 MHz, testing above 1 GHz will be required to the FCC limits. The upper frequency will depend upon the actual maximum clock speed in the product. Ghery Pettit Intel -----Original Message----- From: [email protected] [mailto:[email protected]] Sent: Monday, March 25, 2002 8:41 AM To: [email protected] Subject: FCC part 15 section 109
Hello group, Part 15, section 109, states that as an alternative to the radiated emission limits shown in paragraphs (a) and (b) of this section, digital devices may be shown to comply with CISPR22 3rd ed. Further-on is stated that the testmethods of part 15 (referring to ANSI C63.4) apply. Question: If a lab performs Part 15 measurements for Class B devices below 1000MHz according to CISPR22:1997 with - the limits of CISPR22 - the procedures of CISPR22 - at a 10 meter distance as per CISPR22, Are these measurements performed in an correct way? Regards, Kris Carpentier
