I agree no 6dB needed....question; what power levels are required (forward power etc) for you to achieve that level? What equipment (amp, probe, sig gen) are you using?
Thank you. Rob Kado EMC Engineer - Module Laboratory Operations Chrysler Corporation CIMS 481-47-20 800 Chrysler Drive Auburn Hills, MI 48326 Desk: (248) 576-6915 Mobile: (248) 467-0639 Fax: (248) 576-7045 "Ralph McDiarmid" <[email protected]> Sent by: [email protected] 06/14/2007 11:02 AM To "ieee" <[email protected]> cc Subject RE: GR1089 conducted calibration I would say no 6dB adjustment needed. It's seems clear that the level is calibrated for 123dBuV at the output of the fixture. I think that means the level at the input of the fixture would be 6dB higher, but that's not the signal level of interest if I understand the question. Ralph McDiarmid, AScT Compliance Engineering Group Xantrex Technology Inc _____ From: [email protected] [mailto:[email protected]] On Behalf Of Bob Richards Sent: Thursday, June 14, 2007 6:25 AM To: ieee Subject: GR1089 conducted calibration No response from the first post, so I am reposting. Seems like the more complicated the question, the more responses we get. This question must be too simple. :-) The GR1089 Conducted Immunity calibration is to be performed in a 50 ohm fixture, terminated on one side with 50ohms, the other side through an attenuator (also 50ohm impedance) to a measurement device. The test limit at 10khz is listed as 89 dBua. The calibration level, measured at the output of the calibration fixture, should therefore be 123 dBuV ( add 34 dB to convert >from dBuA to dBuV in a 50 ohm system). My question is this: Is there is a 6 dB adjustment in level to be included in the measurement? I have always calibrated without any 6dB adjustment (more severe test), but the question came up recently so I thought I would ask the question here. Bob Richards, NCT - ---------------------------------------------------------------- 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 - ---------------------------------------------------------------- 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 email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________
