Exactly the procedure I posted in our EMC lab years ago. _______________________________________________________________________________
Ralph McDiarmid | Schneider Electric | Solar Business | CANADA | Regulatory Compliance Engineering From: "Kunde, Brian" <[email protected]> To: [email protected], Date: 10/22/2015 02:08 PM Subject: Re: [PSES] Preselector requirement in ANSIC63.4 -low PRF I believe if you do a Linearity Check you can tell if your readings are correct or influenced by a strong adjacent signal. Take a reading, add 10db internal attenuation, and see if you get the same reading. Or add an external attenuator to the input and see if your value decreases by the amount of your attenuator. If not, then your reading(s) are not correct. The Other Brian From: Sundstrom, Mike [mailto:[email protected]] Sent: Thursday, October 22, 2015 2:58 PM To: [email protected] Subject: Re: [PSES] Preselector requirement in ANSIC63.4 -low PRF So the SA is not in overload, which could give a wrong amplitude otherwise. Thanks, Michael Sundstrom Garmin Compliance Engineer 2-2606 (913) 440-1540 KB5UKT “Never give up on a dream just because of the time it will take to accomplish it. The time will pass anyway.” Earl Nightingale From: Grasso, Charles [mailto:[email protected]] Sent: Thursday, October 22, 2015 1:53 PM To: [email protected] Subject: [PSES] Preselector requirement in ANSIC63.4 -low PRF Hell all, ANSI C63 *requires* the use of a preselector on an SA when making QP measurements of a signal with a low repetition rate (lower than 20Hz or less). Does anyone know why? Best Regards Charles Grasso Compliance Engineer Echostar Communications (w) 303-706-5467 (c) 303-204-2974 (t) [email protected] (e) [email protected] (e2) [email protected] - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. 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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://www.ieee-pses.org/list.html (including how to unsubscribe) 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]> - ---------------------------------------------------------------- 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://www.ieee-pses.org/list.html (including how to unsubscribe) 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]>
