Prior,
I do agree with you, but there are other large companies out there that are
bucking the system and are playing on a level playing field. There are very
few manufacturers that still manufacture in the States, and they legally and
ethically follow the laws. Unfortunately this is reality.
John,
All that I am saying is that the manufacturer has to show the product that
he produces is in compliance. It does not discriminate if the manufacture
makes 10 pieces a year of 1 million they all have to comply. How does one
do that? They have to periodically test product off the assembly
Yes, wouldn't it be good. IMHO, it's slightly less feasible than a
combined 3D photocopier and perpetual motion machine.
Someday, they'll be invented too. Although I don't want to be the guy that
has to test the perpetual motion machine :-)
Chris Maxwell | Design Engineer - Optical Division
I read in !emc-pstc that Rich Nute ri...@sdd.hp.com wrote (in
200303281640.iaa07...@epgc264.sdd.hp.com) about 'Administrative
message: allegations of non-compliance' on Fri, 28 Mar 2003:
The recent string with the subject OK, what's going on?
alleges that a named manufacturer's product does not
I read in !emc-pstc that Pryor McGinnis c...@prodigy.net wrote (in
20030328180822.63646.qm...@web80210.mail.yahoo.com) about 'OK, what's
going on?' on Fri, 28 Mar 2003:
Do you not understand that the original unit submitted for EMC
Testing may have passed with flying colors, only to be
I read in !emc-pstc that Chris Maxwell chris.maxw...@nettest.com wrote
(in 83d652574e7af740873674f9fc12dbaaf7e...@utexh1w2.gnnettest.com)
about 'OK, what's going on?' on Fri, 28 Mar 2003:
However, as engineers, we could find a way to make the spot checks cheaper
and
more repeatable. Sort of a
I read in !emc-pstc that Bill Morse bill...@verifone.com wrote (in
614cc7c21856d1118da30060b06b487306084...@smf-nt-mail1.verifone.com)
about 'Help wanted with succinct subject description for non-special
ists' on Fri, 28 Mar 2003:
When the missile launched it struck another aircraft, the
The problem here is, the NARTE certified engineer probably did test a sample
that passed. We can't blame him. Usually, the product non-compliance
happens because the product sold isn't like the product tested.
I think that there is an opportunity here.
We're engineers after all; we can't
I have to add my 2 cents worth! This is getting out of hand and should stop.
Do you not understand that the original unit submitted for EMC Testing may
have passed with flying colors, only to be changed during production (either
by parts from different vendors or production methods, etc.) that
Can someone enlighten me on the current EU legal requirements for flame
spread of cables installed in walls and ceilings of retail/commercial/light
industrial establishments? Do these requirements conflict with UL ratings
(e.g., VW-1, CL2P)? For these same establishments, are there any current
But wasn't the root cause an improperly shielded lead. In other words it
was supposed to have been shielded but the build or install process failed in
this case. So not necessarily the lack of adequate standards but an improperly
build piece of equipment?
Its been a very long time since I
The tuning fork calibration method is the only one I had heard about.
However, the tuning fork calibration method does not work by doppler shift
(a shift in frequency due to the velocity of an object). While the
frequency of the tuning fork is very stable, the amplitude of the
oscillation
There has been an enormous amount of feedback
from Dereks email this week. Including mine.
I am beginning to get the notion
this is all brand new to most of the people here..
it isn't..going on for years...
were not going to change evolution,
we can gripe and complain
best thing to
I read in !emc-pstc that Mark Kirincic mkirin...@houston.rr.com wrote
(in 098201c2f521$284e4820$6501a8c0@kristina2005) about 'OK, what's
going on?' on Fri, 28 Mar 2003:
By the way I do not work for a test house,
I didn't imply that you did.
I am just trying to clean up and
legitimize the
I read in !emc-pstc that Charles Grasso cgrassospri...@earthlink.net
wrote (in anemkfollplfimkkheookejicgaa.cgrassospri...@earthlink.net)
about 'OK, what's going on?' on Fri, 28 Mar 2003:
John - Agreed.
But I would pose the question. If we can demonstrate that products are on
the market place -
What would NARTE say about certified EMC engineers and technicians signing off
on equipment that does not make the grade? It would be great if everyone and
every company handled the issue of EMC ethically. But since the world does not
always work this way...I favor the idea of a fine for every
Is a semi-anechoic chamber really needed? Testing close-in inside of a
building should work, I would think.
Dave Cuthbert
Micron Technology
From: Hjálmar Árnason [mailto:hjal...@mi.is]
Sent: Thursday, March 27, 2003 4:14 PM
To: emc-p...@majordomo.ieee.org
Subject: Calibrating police
John - Agreed.
But I would pose the question. If we can demonstrate that products are on
the market place - legitimatley - that FAIL by upwards of 20dB what
direction would you go in:
a) Status quo
b) relaxation of the limits
c) elemination of the limits
Just wondering
Chas
From:
John,
I understand your point in who will suffer. But the current fines that are
imposed do not prevent these companies from curtailing their current
activities. I believe at least a public humiliation of that company will
help subside some of the blatant failures.
By the way I do not work
out of the box passed,
thats important,
built and shipped correctly...
once you transport,'
was it packaged the EXACT
same way Geoerge, as you moved it
to site # 2 for the second EMI test.
odds are not...I have been guilty of moving
equipment and seeing a change in emi profile..
alwyas for the
I read in !emc-pstc that Mark Kirincic mkirin...@houston.rr.com wrote
(in 091001c2f4dd$85c69910$6501a8c0@kristina2005) about 'OK, what's
going on?' on Thu, 27 Mar 2003:
In my opinion, what really needs to be done is full accountability for failed
products that the company by having the company
To further clarify my point, all the major companies are guilty of this. I
know of first hand information where a unit passed in Asia and failed here in
the states at the companies test lab, and they are forced by upper management
to ship the product anyway. These companies are trying to get
Hi George and the group,
The black marking is corrosion products from incompatible metals (too
far aprart on the electrochemical series). CuBe springs are in this
category for most chassis metals and should not be used uncoated. The
little coating chart at the end of the catalog is the most
Dear Group
I have a DVD player that has a hard disk drive, and Ethernet connection.
When is a declaration of conformance required? Only if I apply the FCC
logo? Would I need to be -3db from the limit or below the margin of error
of the test equipment?
What are the options I have besides self
I suppose that vibration may be good to a point, but I offer the
following. I bought a pair of PC's (These were Dell Dimension 500 and
they did pass Class B) out of the box. I found however that after many
repeated trips to the lab in my car, they no longer did. The I/O
connectors did degrade
I read in !emc-pstc that Hjálmar Árnason hjal...@mi.is wrote (in
lpbblaciebngppepaenngemoceaa.hjal...@mi.is) about 'Calibrating police
radar guns' on Thu, 27 Mar 2003:
I would appreciate if you could give some advice and direct me to the
right websites to get information. I need both test
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