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A much easier way is to determine the 1db compression point of the unit. That can be done with a signal generator and your analyzer at several points. Even easier if you have a tracking generator. 0 (zero)-dbm is +107dbuV. Most commercial preamps will handle at least 0dbm. Most of the octave units I have worked with will handle at least +5dbm max input. If you are measuring signals that high, you have serious emission issues to deal with. If you still are concerned about overload, a 3db pad is a good place to start. Just remember the S/NAN issue. Regards to all. Michael Taylor PE, NCE Sr EMC Eng. Hach business group Danaher Corp. ------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. IEEE PSES Main Website: http://www.ieee-pses.org/ To post a message send your e-mail to [email protected] Instructions for use of the list server: http://listserv.ieee.org/listserv/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
