RE: FCC Part 18 - measurement at closer distance

2004-07-09 Thread owner-emc-p...@listserv.ieee.org
From: owner-emc-p...@listserv.ieee.org [mailto:owner-emc-p...@listserv.ieee.org] On Behalf Of Brent DeWitt Sent: Thursday, July 08, 2004 7:11 PM To: T.Sato; emc-p...@ieee.org Subject: RE: FCC Part 18 - measurement at closer distance http://www.ieee-pses.org/symposium http

Re: FCC Part 18 - measurement at closer distance

2004-07-09 Thread owner-emc-p...@listserv.ieee.org
http://www.ieee-pses.org/symposium http://www.emc2004.org/ I read in !emc-pstc that Brent DeWitt wrote (in ) about 'FCC Part 18 - measurement at closer distance' on Thu, 8 Jul 2004: >At close >distances the FCC allows 1/d^2, but the reality is closer to 1/d^3 at 3, 1

RE: FCC Part 18 - measurement at closer distance

2004-07-09 Thread owner-emc-p...@listserv.ieee.org
http://www.ieee-pses.org/symposium http://www.emc2004.org/ Brent, On Thu, 8 Jul 2004 19:10:49 -0600, "Brent DeWitt" wrote: > I have had experience submitting data taken at a closer distance than > specified, although in this case it was 120kHz RF-ID systems. At close > distances t

RE: FCC Part 18 - measurement at closer distance

2004-07-08 Thread owner-emc-p...@listserv.ieee.org
lto:owner-emc-p...@listserv.ieee.org]On Behalf Of T.Sato > Sent: Thursday, July 08, 2004 6:44 PM > To: emc-p...@ieee.org > Subject: RE: FCC Part 18 - measurement at closer distance > > > http://www.ieee-pses.org/symposium >

RE: FCC Part 18 - measurement at closer distance

2004-07-08 Thread owner-emc-p...@listserv.ieee.org
http://www.ieee-pses.org/symposium http://www.emc2004.org/ On Thu, 8 Jul 2004 08:14:44 -0600, drcuthb...@micron.com wrote: > I ran the sim again using perfect GND. The field falls off as 1/d. Over > lossy ground it falls off much faster than 1/d. The antennas are 1/4 > wavelength gro

Re: FCC Part 18 - measurement at closer distance

2004-07-08 Thread owner-emc-p...@listserv.ieee.org
http://www.ieee-pses.org/symposium http://www.emc2004.org/ Thank you. > From: drcuthb...@micron.com > Date: Thu, 8 Jul 2004 08:14:44 -0600 > To: , , > Subject: RE: FCC Part 18 - measurement at closer distance > > Ken, > > I ran the sim again using perfect GND

RE: FCC Part 18 - measurement at closer distance

2004-07-08 Thread owner-emc-p...@listserv.ieee.org
l down the aggregate productivity of the entire world (speaking as an economist would). Dave Cuthbert From: Ken Javor [mailto:ken.ja...@emccompliance.com] Sent: Thursday, July 08, 2004 8:05 AM To: drcuthbert; vef00...@nifty.ne.jp; emc-p...@ieee.org Subject: Re: FCC Part 18 - measurement at close

Re: FCC Part 18 - measurement at closer distance

2004-07-08 Thread owner-emc-p...@listserv.ieee.org
ld be interesting to know what assumptions were made to derive the field intensity profile. I hasten to add I know nothing about NEC or how you use it. > From: drcuthb...@micron.com > Date: Thu, 8 Jul 2004 07:52:27 -0600 > To: , > Subject: RE: FCC Part 18 - measurement at closer

RE: FCC Part 18 - measurement at closer distance

2004-07-08 Thread owner-emc-p...@listserv.ieee.org
e Cuthbert Micron Technology From: owner-emc-p...@listserv.ieee.org [mailto:owner-emc-p...@listserv.ieee.org] On Behalf Of T.Sato Sent: Wednesday, July 07, 2004 9:09 PM To: emc-p...@ieee.org Subject: FCC Part 18 - measurement at closer distance http://www.ieee-pses.org/symposium

Re: FCC Part 18 - measurement at closer distance

2004-07-08 Thread owner-emc-p...@listserv.ieee.org
ot;T.Sato" > Date: Thu, 08 Jul 2004 12:08:36 +0900 (JST) > To: emc-p...@ieee.org > Subject: FCC Part 18 - measurement at closer distance > > http://www.ieee-pses.org/symposium > http://www.emc2004.org/ > -- > > Dear

FCC Part 18 - measurement at closer distance

2004-07-07 Thread owner-emc-p...@listserv.ieee.org
http://www.ieee-pses.org/symposium http://www.emc2004.org/ Dear EMC experts, FCC Part 18 (46 CFR 18.305) defines field strength limit at very long distance such as 300m and 1600m. Fortunately, it is permitted to make a measurement at closer distance: Sec. 18.305 Field strength lim