Christopher –
As this is a point-to-point device so I am assuming outdoor use. The FCC are currently limiting the use of 5470-5725 MHz to indoor use and have notched out the use of the range 5600-5650MHz. If you do have an outdoor system then your FCC DFS testing needs to be done in the lower band because the outdoor system cannot currently be certified to operate in the 5470 MHz band in the US. The specific test procedures for DFS should detail which operating bands you need to evaluate. The FCC test methods allow testing to be done in either of the operating bands provided that you declare you use the same DFS detection mechanisms in both bands (assuming the device can legally operate in both bands). The FCC method also expects tests to be performed for each bandwidth. The European standard EN 301 893 expects testing to be performed in each operating band but only requires testing in one bandwidth (although I would recommend confirming that your DFS functions work in all bandwidths). Mark ________________________________ From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Christopher Sent: Thursday, October 29, 2009 4:19 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: FCC DFS testing, Title 47 CFR Part 15 Subpart E Folks, I have a question regarding DFS testing for our RF experts. We manufacture point to point wirless devices. One NRTL lab told us that we need to test only one band 5.3GHz while the other NRTL lab asked us to test both bands i.e. 5.6GHz and 5.3GHz band? Question? Can we just test one band and get FCC approval? If it is necessary to test both then I dont have any issue, Just more $$ cost and time for a company. Thank you in advance for you help. Christopher - 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>
