I read in !emc-pstc that Chris Maxwell chris.maxw...@nettest.com wrote
(in 83d652574e7af740873674f9fc12dbaaf7d...@utexh1w2.gnnettest.com)
about 'Pencil erasers for pre-EMI cleaning? (cleaning mating surfaces,
chassis, )', on Fri, 1 Mar 2002:
If you're worried about galvanic corrosion. An
Chris,
Instrument Specialties is now Laird Technologies for those who do not yet
know.
Josh
-Original Message-
From: Chris Maxwell [mailto:chris.maxw...@nettest.com]
Sent: Friday, March 01, 2002 11:46 AM
To: Robert Wilson; emc-p...@majordomo.ieee.org
Subject: RE: Pencil erasers for
Hi Group
What was the major differences between EN55022:1987 and EN55022:1994?
Do a web site exist to find the changes when the standard is modified?
Thanks
Gaétan Hogue
Approvals Manager
Eicon Networks
Phone: (514) 832-3488
Fax: (514) 745-5588
Email: gaet...@eicon.com
If you're worried about galvanic corrosion. An excellent (and free)
source of information is the Instrument Specialties Catalog and Design
Guide.The back cover is a foldout which has a very nice color coded
chart that shows metal compatibility while taking into account the
environment.
One must take care to separate fact from opinions. Mixing metals as
you mention is NOT necessarily a sure way to promote corrosion. Yes,
steel against aluminum us not good practice since they are far enough
apart on the electromotive series that they will act as a local battery
(in the presence
this particular sample has been thoroughly abused in environmental
testing (including several unintentional unfortunate CONDENSING temp
humidity runs - ever look into a chamber and see what looks like your
product sitting in a cloud? Not fun). Months and tests later, the dirt or
grime is
Thanks everyone for your input. And let me put everyone's fears at ease
by saying that this particular sample has been thoroughly abused in
environmental testing (including several unintentional unfortunate
CONDENSING temp humidity runs - ever look into a chamber and see what
looks like your
Hi
The title of the Blue Book (taken from an older version) is An example of
documents to be submitted with application for technical conditions
compliance approval (Analog Telephone Terminals). An English version of this
document can be found along with the Green and Yellow books in the
Samples
Hello John,
The purpose of a pre-amplifier in the test set-up is to lower the noise
floor. I.e. if the over-all noise floor is to high as a result of low gain
in the total system, low antenna gain, high cable losses or bad noise figure
in the receiving device a pre-amplifier will definitely give
I read in !emc-pstc that Robert Wilson robert_wil...@tirsys.com wrote
(in 3FF57405336C9B4C976A1819F860A2560F6929@xng_tirsys.TIRSYS.COM)
about 'Safety Margins based on NSA premises', on Thu, 28 Feb 2002:
A 10 dB margin? That's easy for the guy doing the test to say! Heck; why
not 20dB?!
I think
Hi Dave,
Those were the days. Computer not working, pull out all the cards and take
an eraser to the gold fingers. Put it back together and Voila! everything
works.
In a perfect world, my opinion coincides with those previously expressed.
We should be testing with pristine equipment, as a
I agree if this was the actual EUT under test, but if it is a
peripheral that gets used lots, or if its a PC chassis for example I would
clean the surfaces at any point I got nervous about the performance.
One of the reasons that it is difficult to find a PC that meets the
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