The idea in the overlapping ranges is that at 800-890 MHz the test level may be selected to be different than in the rest of the band. Otherwise the test is same. regards, Ari Honkala
> -----Original Message----- > From: EXT Maxwell, Chris [mailto:chr...@gnlp.com] > Sent: Wednesday, October 25, 2000 9:36 PM > To: 'Barry Ma'; emc-p...@ieee.org > Subject: RE: A1 of EN61000-4-3 > > > > Do they have the same modulation parameters? I always > assumed that the > 800-960Mhz tests were pulse modulation tests using 200Hz, > 50% duty cycle > square waves. If not, then I'm just as confused as you are. > > > -----Original Message----- > > From: Barry Ma [SMTP:barry...@altavista.com] > > Sent: Wednesday, October 25, 2000 11:47 AM > > To: emc-p...@ieee.org > > Subject: RE: A1 of EN61000-4-3 > > > > > > Hi group, > > > > Thanks for all replies in respond to my question on the > Amendment 1 of > > EN61000-4-3 a few days ago. But there is another unclear > issue left with > > the A1. Please help. > > > > I think the intention of A1 is to simulate the interference > from near cell > > phones. That's why A1 has two frequency ranges: 800-960 MHz > and 1.4-2.0 > > GHz. What I'm kind of confused is that the 80-1000 MHz > frequency range of > > original EN1000-4-3 already includes 800-960 MHz of A1. It > seems to make > > no sense to re-test a subset (800-960 MHz) after passing > 80-1000 MHz. - > > They both have the same modulation parameters: 80% AM at 1 KHz. > > It makes sense, on the other hand, to test another > frequency range 1.4-2.0 > > GHz of A1, which is out of 80-1000 MHz. > > > > > > Thanks. > > Best Regards, > > Barry Ma <b...@anritsu.com> > > ANRITSU www.anritsu.com > > Morgan Hill, CA 95037 > > Tel. 408-778-2000 x 4465 > > > ______________________________________________________________ > _________ > > > > Free Unlimited Internet Access! Try it now! > > http://www.zdnet.com/downloads/altavista/index.html > > > > > ______________________________________________________________ > _________ > > > > > > ------------------------------------------- > > This message is from the IEEE EMC Society Product Safety > > Technical Committee emc-pstc discussion list. > > > > 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: > > Jim Bacher: jim_bac...@mail.monarch.com > > Michael Garretson: pstc_ad...@garretson.org > > > > For policy questions, send mail to: > > Richard Nute: ri...@ieee.org > > > > ------------------------------------------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > 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: > Jim Bacher: jim_bac...@mail.monarch.com > Michael Garretson: pstc_ad...@garretson.org > > For policy questions, send mail to: > Richard Nute: ri...@ieee.org > > ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson: pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
