Dear Members, I have a contractor performing NSA today. When the center of the biconical antenna is located right at the 2 meter peripheral, NSA doesn't meet the 4 dB requirements. In order to meet the 4 dB requirement, the antenna must be moved inward until the tip of the biconical antenna element is right at the peripheral. The contractor tells me this is the way suppose to. Do you agree with the contractor?
For vertical polarization, the diagram from ANSI C63.4 shows the center of the biconical antenna is not right at the peripheral. I cannot remember how NSA was performed when the chamber was built four years ago. Thank you very much and look forward to your comments. Best regards, Grace Lin - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ 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]>
