To all:
I'm reading EN 60601-1-2:2001, and I'm not clear on a sentence in Annex
ZA. It says:
"For undated references the latest edition of the publication referred to
applies (including amendments)."
1) Is it the 'latest edition' when EN 60601-1-2:2001 was published? The
annex lists the vali
HI Cody,
we perform pre-scan and the do final measurements on an OATS. In the
body of the test report I address our process. I also give the reader
confidence that we know what were doing on an OATS by citing some of the
techniques we use to discriminate signals from interference.
The report o
sorry, do not know, as I cannot find the 'ambient' base scan data.
FWIW, the test engineer at the lab said all the scans were 'ok'.
caveat -> some old computers that have been bounced around can be very noisy -
so test each individual machine. Have two 2000-era Compaq Deskpros (exact same
config)
Dear All,
How do EMC test houses handle interference within test reports when using an
OATS? Will they report a full prescan with all the interference or do they
only report quasi peaked points and their values. We have been using a
precompliance chamber for internal testing and we just finished
Lab Queens are not to be used for compliance purposes.
Dennis Ward
Director of Engineering
American TCB
Certification Resource for the Wireless Industry www.atcb.com
703-847-4700 fax 703-847-6888
direct - 703-880-4841
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of John
Wo
Most op-amps these days have a gain-bandwidth product of multiple
megahertz, and so would be suitable.
If I were make this, I would use such an op-amp. I usually favor an
inverting configuration to keep the op-amp inputs from swinging with the
input voltage. You would want to have a 10 kohm resist
In message
<54ffbe24c443bc45b8deb804650d2d2b04287...@ct11exm64.ds.mot.com>, dated
Tue, 14 Apr 2009, Elliott Mac-FME001 writes:
>I have been asked by an associate if I can get a recommendation on a
>model of laptop that would be sufficient for FCC Part 15 DoC tests of
>peripherals that has a r
1MHz - 1GHz?
"Brian O'Connell"
Sent by: emc-p...@ieee.org
04/14/2009 01:15 PM To
cc
Subject
RE: "Quiet" Laptop
Do not know if it has a 'reputation', but the IBM Thinkpad model 390X,
running Linux, is the most "quiet" box that I have used, from 1Ghz to
3GHz. It is ok, but r
Do not know if it has a 'reputation', but the IBM Thinkpad model 390X,
running Linux, is the most "quiet" box that I have used, from 1Ghz to
3GHz. It is ok, but rather average from 150kHz to 1MHz if you are careful
to orient the machine.
A bit long in tooth, but can still be found on ebay.
From:
Hi Mac,
In the past, I’ve had good success with a small 13 in screened Dell laptop
that did not have any performance features such as wireless or having any disk
drives. Sorry, I cannot remember the model, but it did have XP and a 10/100
Ethernet, modem, single USB and RS232 ports. I also remem
Feels like a single transistor circuit would do the job and would only need a
single power rail. It could be the cheapest solution.
Ralph McDiarmid, AScT
Xantrex Technology Inc
On Tue, 14 Apr 2009 00:02:40 -0500,
Ken Javor wrote:
> Looking for an inexpensive small audio unity gain e
Christine,
Here's one more expert on REACH, based near Denver.
Rick Charbonneau
richard.charbonn...@comcast.net
His profile on LinkedIn:
http://www.linkedin.com/profile?viewProfile=&key=5578829&trk=
Regards, Ken
Wyatt Technical Services, LLC
56 Aspen Dr.
Woodland Park, CO 80863
Email: k
Hello Colleagues
I have been asked by an associate if I can get a recommendation on a model of
laptop that would be sufficient for FCC Part 15 DoC tests of peripherals that
has a reputation for being "quiet".
Does anyone out there have any suggestions / recommendations / personal
preferences?
Kim Boll
If the PTC and diode in the cell are easily identifiable (ie get specs from
cell manufacturer), this should be enough. Make sure the protection PTC
impedance limits the current so as not to exceed the battery abnormal reverse
current rating (obtained by getting the UL Conditions of Ac
Hi all
We have a medico product with a Li-Po battery back. The pack have UR approval,
but this is only for the cell not including the protection/charging circuit
integrated in the cell.
The solution is to integrate a simple protection circuit in the main product.
This could be done by a Zen
Dear Ron,
When I read the title on EN 62209-1, I would not expect that the standard would
be harmonized:
Human exposure to radio frequency fields from hand-held and body-mounted
wireless communication devices - Human models, instrumentation, and procedures
-- Part 1: Procedure to determine t
In message <20090414204412o.vef00...@nifty.ne.jp>, dated Tue, 14 Apr
2009, T.Sato writes:
>I assembled the IC in a box with a small DC/DC converter to power +/-
>5V to the IC, and used a small AC/DC power supply unit to power the
>box.
No doubt it works, but I would avoid any switching techno
On Tue, 14 Apr 2009 00:02:40 -0500,
Ken Javor wrote:
> Looking for an inexpensive small audio unity gain emitter-follower type
> buffer amplifier with input impedance equal to or higher than 10 K Ohms, and
> output impedance of 50 Ohms. Frequency range of 20 Hz to at least 50 kHz
> with less th
Everyone
Some advance information and dates for your diaries, if you are located in, or
visiting, the UK or Republic of Ireland.
In addition …
If you would like to offer a demonstration session, please contact Roy Ediss
at roy.ed...@ieee.org
If you would like to offer a paper for 8
Looking for an inexpensive small audio unity gain emitter-follower type buffer
amplifier with input impedance equal to or higher than 10 K Ohms, and output
impedance of 50 Ohms. Frequency range of 20 Hz to at least 50 kHz with less
than 1 dB variation over that range.
If there is some op-amp that
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