Ken: Yes, you are right, the probe doesn't know the frequency. Thus, the manufacturer has to make it flat, by design and construction, or you have to generate your own correction factors based on performance testing of the probe.
Ed Price WB6WSN Chula Vista, CA USA From: Ken Javor [mailto:[email protected]] Sent: Monday, March 05, 2018 8:19 PM To: [email protected] Subject: Re: [PSES] Field probe calibration It is clear that any correction table built into the field probe hardware/firmware/software is time domain only, so linearity correction factors based on amplitude, not frequency domain, because there is no frequency information unless you are looking at an entirely different kind of device designed to drive a spectrum analyzer. With that sort of system (suppliers of which I am aware include Rohde & Schwarz and Narda), it is possible to correct in in the frequency domain, but again not a single standard out there is based on the use of such, as they are quite recent developments. Ken Javor Phone: (256) 650-5261 - ---------------------------------------------------------------- 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]>
