My experience has been that the requirement is limited to 10GHz. This includes some major (and very critical!) telecom clients who operate at ~1.3GHz.
Bob Martin Sr Technical Manager ITS - Northeast The opinions expressed are my own and not necessarily those of my employer ---------- From: Paul Wooley To: [email protected] Subject: GR-1089 Above 10GHz List-Post: [email protected] Date: Monday, January 05, 1998 5:26PM In emissions testing for compliance to FCC standards the test is required to be extended to 10x the highest clock in the EUT. My system is spread spectrum with an in-band fundemental of 1.9GHz so for the FCC testing I have to test up to 20GHz. No problem. However I also have to comply with the GR-1089 document. It seem to me that if the EMI test is performed to 20GHz then the logical extention of that line of thought is that the EUT should also be tested to 20GHz for RF immunity. However, if I don't need to actually go to 20GHz to satisfy the BELLCORE requirement I surely don't want to for time and cost reasons. Does anyone out there have any experiance with this or know what BELLCORE expects? RCIC - http://www.rcic.com Regulatory Compliance Information Center
