e: Mon, 23 Jun 2003 12:58:55 -0600
> To: Ken Javor
> Cc: emc-p...@majordomo.ieee.org
> Subject: Re: another OATS question
>
>
>
> Hi Ken,
>
> Only the maximum reading over the scan height is used. The received signal
> is nominally the vector sum of the line of si
Tim Pierce wrote
>> I have worked with sites that used the hardware cloth (screen) over
concrete
in the past. When the tears would happen, they would patch that area ...<<
Tim,
If this were a reflector antenna, holes in the reflector would be kept to
0.1 wavelength at the highest frequency. T
Hi Ken,
Only the maximum reading over the scan height is used. The received signal
is nominally the vector sum of the line of sight path and the reflected or
"image" path from the ground plane. In horizontal polarization there is
also 180 degree phase shift due to conservation of charge physic
I read in !emc-pstc that drcuthb...@micron.com wrote (in ) about 'another OATS
question' on Mon, 23 Jun 2003:
>This method makes a DUT look "hotter" than it really is and makes the site
>uncertainty appear larger.
Yes, well, for some people that's the Holy Grail. For them, the purpose
of testin
: drcuthbert; ieee pstc list
Subject: RE: another OATS question
Dave Cuthbert (drcuthb...@micron.com) wrote:
>> If I understand the OATS cal procedure, the RX antenna height is moved
>from 1 meter to 4 meters and readings are taken. Now this is the strange
part: The readings are averaged
Dave Cuthbert (drcuthb...@micron.com) wrote:
>> If I understand the OATS cal procedure, the RX antenna height is moved
>from 1 meter to 4 meters and readings are taken. Now this is the strange
part: The readings are averaged. Is this right? Now think about it- when a
DUT is tested, the RX antenn
NSA curve. Could someone on the list explain how correlation is
achieved through averaging?
> From: drcuthb...@micron.com
> Reply-To: drcuthb...@micron.com
> Date: Mon, 23 Jun 2003 10:40:29 -0600
> To: , ,
> Subject: RE: another OATS question
>
>
> Yes that will work to
hese antenna heights will of course
be different for horizontal and vertical polarization.
Dave Cuthbert
Micron Technology
From: Luke Turnbull [mailto:luke.turnb...@trw.com]
Sent: Monday, June 23, 2003 2:24 AM
To: emcp...@aol.com; emc-p...@majordomo.ieee.org; drcuthbert
Subject: RE:
y, June 23, 2003 2:24 AM
To: emcp...@aol.com; emc-p...@majordomo.ieee.org; drcuthbert
Subject: RE: another OATS question
Or a Spectrum analyser with tracking generator.
>>> 06/20/03 06:58pm >>>
Renting a VNA or SNA would really speed things up.
Dave
From: emcp...@aol.com [m
Hello Tim
At one of our OATS sites we have a pit under a metal hatch in the
groundplane, to the rear of the EUT turntable. To do the NSA we
put the signal generator down there and connect it back to the
control room via a fibre optic/GPIB link. I wrote some software
which steps the sig gen th
Or a Spectrum analyser with tracking generator.
>>> 06/20/03 06:58pm >>>
Renting a VNA or SNA would really speed things up.
Dave
From: emcp...@aol.com [mailto:emcp...@aol.com]
Sent: Friday, June 20, 2003 10:02 AM
To: emc-p...@majordomo.ieee.org
Subject: another OATS question
Hello every
Renting a VNA or SNA would really speed things up.
Dave
From: emcp...@aol.com [mailto:emcp...@aol.com]
Sent: Friday, June 20, 2003 10:02 AM
To: emc-p...@majordomo.ieee.org
Subject: another OATS question
Hello everyone,
I have worked with sites that used the hardware cloth (screen) over conc
Electrometrics makes a dipole set that is self-tuning.
From: emcp...@aol.com
Reply-To: emcp...@aol.com
List-Post: emc-pstc@listserv.ieee.org
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Date: Fri, 20 Jun 2003 12:02:19 EDT
To: e
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