Hello Michael, Is it possible you are confusing the chamber manufacturer's spec for a volume that will comply with NSA requirements with the plane that will meet the uniform field spec? When we were seeking bids for a compact chamber for immunity testing, some of the quotes also indicated volume characteristics for emissions, but no one claimed more than a plane for immunity. For what its worth . . .
Best regards, Don Umbdenstock Sensormatic Electronics Corporation > ---------- > From: > [email protected][SMTP:[email protected]] > Reply To: [email protected] > Sent: Thursday, April 05, 2001 6:23 PM > To: [email protected] > Subject: IEC 61000-4-3 > > > Collogues, > > In this specification, is it stated anywhere if the unity field is a > volume ( 1 cubic meter) or is it a plane location (the calibration plane)? > > I'm having questions raised about rotating the EUT (in 90 degree > increments) > (which now has us over testing the EUT because it is closer to the antenna > by 0.3m at the 90 degree point) or under testing when tested at 270 > degrees? > I thought I had read somewhere that the unity field was the 1 cubic meter > box at the (80cm) table top centered and aligned with the calibration > plane? > > > Michael Sundstrom > > Product Test Technician EMC > > Nokia Mobile Phones, Dallas PCC > > > > * Email [email protected] > > % Desk (972) 374-1462 > > *Mobile (817) 917-5021 > > * Fax (972) 374-0901 > amateur call: KB5UKT > > > ------------------------------------------- > 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: > [email protected] > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Michael Garretson: [email protected] > Dave Heald [email protected] > > For policy questions, send mail to: > Richard Nute: [email protected] > Jim Bacher: [email protected] > > All emc-pstc postings are archived and searchable on the web at: > http://www.rcic.com/ click on "Virtual Conference Hall," > ------------------------------------------- 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: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: [email protected] Dave Heald [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall,"

