Hello Eric, FCC rules, 15.31(3) tells us to measure using ANSI C63.4-2001, excluding section 4.1.5.2. Section 4.1.5.1 addresses loop antennas; 4.1.5.2 addresses rod antennas, which by the above exclusion, shows that a rod antenna is not allowed.
We measure loop antenna products on an open field. If your product uses a loop antenna, I caution you about the site characteristics used to measure your products. A simple loop at 500 kHz should produce a 3rd order roll off. If your measurement site has any ferrous material in the ground (various utilities), your roll-off measurement may be corrupted. Of course if you have plenty of margin, you won't need the 3rd order roll-off. And good luck with the ambients. Best regards, Don Umbdenstock Sensormatic 561 912 6440 From: Eric Penne [mailto:epe...@olug.org] Sent: Friday, September 05, 2003 3:53 PM To: emc-p...@majordomo.ieee.org Subject: 508kHz Intentional Radiator FCC I'm trying to find the test equipment requirements for testing a 508kHz intentional transmitter. More specifically I'm trying to find out if the FCC wants to use a loop or rod antenna. This is a large unknown to me and I am trying to research it right now. I was hoping that some of list members may be able to give me some more information and anything "gotchas" that I should be looking for. Thanks Eric Penne epe...@olug.org This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
