Hi, Your question 1: There is no specific phase noise requirement in the standards you mention. In 61000-4-3- the test system as whole needs to comply with the requirement for harmonics per Clause 6. In 61000-4-6 it's in Clause 6.1. Your question 2: To do the tests without power meter and directional coupler is questionable. In that case you need to trust that your PA gain does not change from the calibration. And without those you really cannot check that your PA is not saturated, which you need to do. 61000-4-3 strongly recommends the use of directional coupler and power meter (some people read the text as it being mandatory), and while you have it it can be used for 4-6, too. Best Regards Ari Honkala
_____ From: [email protected] [mailto:[email protected]] On Behalf Of ext Grace Lin Sent: 27. huhtikuuta 2006 16:55 To: [email protected] Subject: Phase Noise per 61000-4-3 and 61000-4-6 and More Dear Experts, We are in the process of building a new engineering building with a 3m chamber (for emission and immunicty measurement). We are looking for A2LA accreditation after the chamber is built. A lot of test equipment need to be purchased. And a lot of questions arise. What is phase noise requirement for a signal generator to perform 61000-4-3 and 61000-4-6 tests? Since I used a Gigatronics 6082A signal generator before, I use its specifications to look for one. An agent returned to me with a $32k quote and told me if I can lower phase noise requirement, he can find a much cheaper model. An used equipment is not an option as the owner of the company will not approve any used equipment. Personally, I prefer to have a signal generator in a chamber control room to perform 61000-4-3 test and a signal generator outside of chamber area to perform 61000-4-6 test. I am not sure if I can achieve this as I do have a budget limit. Another question: do I need to purchase a directional coupler and a power meter for these two tests? For 61000-4-3 test, since I have a field probe and a field monitor, I think I am OK. For 61000-4-6, this is questionable. Your help is highly appreciated! Best regards, Grace Lin I need your help to find inex - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
