, 2004 10:50 AM
To: Grasso, Charles; 'Tsang Steven'; 'emc-p...@majordomo.ieee.org'
Subject: Re: OATS Measurement
Mr. Grasso and I disagree. He comes from a point of strength (his knowledge
and expertise in modeling), and I, from a position of weakness (little
knowledge and less int
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I read in !emc-pstc that lfresea...@aol.com wrote (in <61.3a746e40.2d4ab
a...@aol.com>) about 'OATS Measurement' on Thu, 29 Jan 2004:
>There was a move to go to a fully anechoic chamber... I wonder where
>that went?
You may find IEC/EN 61000-4-20 and -21 interesting in this context. The
standa
ender.
From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of lfresea...@aol.com
Sent: Thursday, January 29, 2004 2:37 PM
To: matt.aschenb...@echostar.com; emc-p...@majordomo.ieee.org
Subject: Re: OATS Measurement
In a message dated 1/29/2004 12:39:57 PM Ce
-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of lfresea...@aol.com
Sent: Thursday, January 29, 2004 12:37 PM
To: matt.aschenb...@echostar.com; emc-p...@majordomo.ieee.org
Subject: Re: OATS Measurement
In a message dated 1/29/2004 12:39:57 PM Central Standard Time
In a message dated 1/29/2004 12:39:57 PM Central Standard Time,
matt.aschenb...@echostar.com writes:
At what point will with EMC community scrap the OATS?
Is appears that the OATS measurement methodology is broken.
When it was designed, there were relatively few intentional radiators, where
as
round
reflection etc.
There may be other options but item 4 will still be a hurdle
Gary
From: Aschenberg, Mat [mailto:matt.aschenb...@echostar.com]
Sent: Thursday, January 29, 2004 7:53 AM
To: 'EMC-PST (E-mail)'
Subject: RE: OATS Measurement
At what point will with EMC
At what point will with EMC community scrap the OATS?
Is appears that the OATS measurement methodology is broken.
When it was designed, there were relatively few intentional radiators, where
as now,
the majority of the spectrum is blanketed with ambients.
As a community we have learned a grea
This has generated some interesting discussion. Having operated an OATS for
several years I can appreciate the difficulty of dealing with this problem.
1. It is always best to measure the EUT first in a chamber. while the
results may, or may not correlate it does give you a list of frequencies t
: bdew...@ix.netcom.com; emc-p...@majordomo.ieee.org
Subject: Re: OATS Measurement
In a message dated 1/28/2004 3:15:35 PM Central Standard Time,
bdew...@ix.netcom.com writes:
The method Dave Cuthbert mentions can work it some cases. I have tried a
variation on his method which is to use a combiner
emc-p...@majordomo.ieee.org
Subject: RE: OATS Measurement
Steven (emc-st),
For measuring near OATS ambients, the following have been accepted in
the
past:
- filter out the ambient using bandstop, band pass, low or high pass
filters while still passing the frequency you wish to measure
- use a lower RES BW
similar emission from the EUT measured in the clear.
Brent DeWitt
From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of Ken Javor
Sent: Wednesday, January 28, 2004 10:50 AM
To: Grasso, Charles; 'Tsang Steven'; 'emc-p...@majordomo.ieee.org'
In a message dated 1/28/2004 3:15:35 PM Central Standard Time,
bdew...@ix.netcom.com writes:
The method Dave Cuthbert mentions can work it some cases. I have tried a
variation on his method which is to use a combiner for the two signals
rather than re-radiating the ambient. The problem is that
49 53
> ==
>
From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org] On Behalf Of
drcuthb...@micron.com
Sent: woensdag 28 januari 2004 19:46
To: ken.ja...@emccompliance.com; charles.gra...@echostar.com;
emc...@h
Dave Cuthbert
>Micron Technology
>
> -Original Message-
> From: owner-emc-p...@majordomo.ieee.org
> [mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of Ken Javor
> Sent: Wednesday, January 28, 2004 10:50 AM
> To: Grasso, Charles; 'Tsang Steven'; &#x
Dave Cuthbert
From: Ken Javor [mailto:ken.ja...@emccompliance.com]
Sent: Wednesday, January 28, 2004 12:57 PM
To: drcuthbert; charles.gra...@echostar.com; emc...@hotmail.com;
emc-p...@majordomo.ieee.org
Subject: Re: OATS Measurement
if you can make that work in a reasonable amount of time, you
if you can make that work in a reasonable amount of time, you are a much
greater wizard than I...
> From: drcuthb...@micron.com
> Date: Wed, 28 Jan 2004 11:45:39 -0700
> To: , ,
> ,
> Subject: RE: OATS Measurement
>
> Isn't this allowed? Measure the EUT in the chamb
om the EUT measured in the clear.
Brent DeWitt
From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of Ken Javor
Sent: Wednesday, January 28, 2004 10:50 AM
To: Grasso, Charles; 'Tsang Steven'; 'emc-p...@majordomo.ieee.org'
Subject: Re: OATS M
height. Is this allowed?
Dave Cuthbert
Micron Technology
From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of Ken Javor
Sent: Wednesday, January 28, 2004 10:50 AM
To: Grasso, Charles; 'Tsang Steven'; 'emc-p...@majordomo.ieee.org'
> From: "Grasso, Charles"
> Date: Wed, 28 Jan 2004 10:28:18 -0700
> To: "'Ken Javor'" , "'Tsang
> Steven'",
> "'emc-p...@majordomo.ieee.org'"
> Subject: RE: OATS Measurement
>
> I must disagree. I wou
ang Steven; emc-p...@majordomo.ieee.org
Subject: Re: OATS Measurement
Is the (semi?) anechoic measurement a 3 meter measurement? If it is and it
meets the NSA curve, you ought to be able to correlate your anechoic and
OATS measurements reasonably well. If they correlate where you don't hav
Is the (semi?) anechoic measurement a 3 meter measurement? If it is and it
meets the NSA curve, you ought to be able to correlate your anechoic and
OATS measurements reasonably well. If they correlate where you don't have
ambients, you ought to be able to use the anechoic measurement in lieu of
t
See CISPR 16-2 Ed1 A2 where measurements with ambients are considered.
Ari
> -Original Message-
> From: owner-emc-p...@majordomo.ieee.org
> [mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of ext
> Tsang Steven
> Sent: 28 January, 2004 06:41
> To: emc-p...@majordomo.ieee.org
> Subje
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