Hi Neven, You could try a York EMC Services CNE III - http://www.yorkemc.co.uk/instrumentation/cneiii/ Battery powered, broadband noise source Three different antenna to cover the 30MHz to 1GHz+ range Adaptor for conducted emissions down to 9kHz We use one for our reference noise source. Regards, James
________________________________ From: Neven Pischl [mailto:neve...@comcast.net] Sent: 08 December 2009 01:01 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Reference RF Source - Recommendations/reviews? Thanks Ken, Even if it is down to ~MHz it would be OK, I could even split it into two devices, one for conducted sand another for the radiated test range confidence checks, although I'd prefer one device to cover the whole range. The radiated range is by far more important to me. Regarding a DIY option, I wondered if anyone has found a device that has the characteristics stable enough (maybe +/- 1dB amplitude accuracy across the spectrum) over time) to use for the purpose and would be willing to share it. I could probably research myself, then I am not sure if it would justify doing it vs. buying something off the shelf. Neven From: "Ken Wyatt" <k...@emc-seminars.com> To: neve...@comcast.net Cc: EMC-PSTC@LISTSERV.IEEE.ORG Sent: Monday, December 7, 2009 4:43:39 PM GMT -08:00 US/Canada Pacific Subject: Re: [PSES] Reference RF Source - Recommendations/reviews? Hi Neven, I'm unaware of commercial site sources that can get down to kHz, however, I should think that would be easy to build yourself. Just use poor EMC techniques (fast edge speeds, etc.)! I've also reviewed a couple of commercial harmonic comb generators by AET - one of which was just a couple days ago. Both are posted to my Web site. I also developed a home brew comb generator that covers up to 2 GHz, the details of which I divulge during my seminars. :-) When I worked for Hewlett-Packard and later Agilent Technologies, we commonly checked site-site correlation annually. The site source was a custom affair using a high-precision optically-controlled signal generator - all battery-operated. The thing weighed a ton, but it was educational to see the results. Regards, Ken Wyatt Technical Services, LLC 56 Aspen Dr. Woodland Park, CO 80863 Email: k...@emc-seminars.com Web: www.emc-seminars.com <http://www.emc-seminars.com/> http://www.linkedin.com/in/kennethwyatt (719) 310-5418 On Dec 7, 2009, at 2:41 PM, Neven Pischl wrote: (This ties to a previous thread on site comparison) I am considering getting a reference RF-source for two purposes: 1) Site/setup confidence check 2) Site comparison (by coupling it to a cabled-up DUT) My immediate interest is ~100 kHz up to 1-2 GHz, but I am also interested to use a reference source at higher frequencies. Does anyone have any recommendations regarding e.g. the following considerations: comb generator vs. noise generator, off-the-shelf vs. DIY, cost, etc. Thanks, Neven - ---------------------------------------------------------------- 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 <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. 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 <emcp...@socal.rr.com> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org> David Heald <dhe...@gmail.com> - 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 <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. 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 <emcp...@socal.rr.com> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org> David Heald <dhe...@gmail.com> - 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 <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. 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 <emcp...@socal.rr.com> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org> David Heald <dhe...@gmail.com>
