The problem with notches is that indirectly someone else defines what frequencies (notches) you may listen to. I am in favor of a notch from 150 kHz and 30 MHz ;<)) (and if necessary: beyond that). The North Korean, Chinese and Iranian governments (and we can name a few more, I think) will be much to happy to fill-up certain "amateur" bands with random fundamental noise. And it would not even be recognized as censorship. I think we all should not only defend the right for freedom of speech, but also the right to listen to it !
There is only one ether, and we have to share it all ! Ban PLC, ban Homeplug ! Regards, Ing. Gert Gremmen [email protected] www.cetest.nl Kiotoweg 363 3047 BG Rotterdam T 31(0)104152426 F 31(0)104154953 Before printing, think about the environment. Van: [email protected] [mailto:[email protected]] Namens Pettit, Ghery Verzonden: Wednesday, May 19, 2010 9:31 PM Aan: John M Woodgate CC: o. laney; [email protected]; [email protected] Onderwerp: RE: [PSES] CE Standard for Power Lines data Transmission System In or out of the notches? I'll agree that outside the notches there is no question when a BPL system is operating. BPL is being proposed by some as one of the command/control link methods for the Smartgrid. The EMC Society is pushing the folks working on IEEE P2030 to consider EMC as an important design parameter for Smartgrid. Ghery S. Pettit From: John M Woodgate [mailto:[email protected]] Sent: Wednesday, May 19, 2010 12:08 PM To: Pettit, Ghery Cc: o. laney; [email protected]; [email protected] Subject: Re: [PSES] CE Standard for Power Lines data Transmission System In message <4c5e6457cd7911469a07260381288c286f6df...@orsmsx502.amr.corp.intel.com>, "Pettit, Ghery" <[email protected]> writes >It should be noted that the current level of notching provides an >adequate level of protection to services in the notches. This has been >shown by experience in the field. It hasn't been demonstrated on European mains distribution systems. Such trials that have been carried out have not produced encouraging results. >And, the IEEE EMC Society believes that EMC considerations are critical >to the success of PLC and Smartgrid technologies. > Does Smartgrid require more bandwidth than is available in the existing Utilities band , roughly 90 to 150 kHz? There seems to be no need to send high-speed data over the distribution network; there are plenty of existing and future ways to do that. -- This is my travelling signature, adding no superfluous mass. John M Woodgate - 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.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 <[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.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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
