Ron,
In ANSI C63.4-1992 (American National Standard for Methods of
Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic
Equipment in the Range of 9 KHz to 40 GHz) paragraph 5.4.2 Alternate Test
Sites, there is instructions on how to take measurements at
Antonio,
Ignore near field probe calibration for a moment and focus on the real
H-field receiving system sensitivity and its signal to noise ratio. As you
correctly stated, magnetic component falls rapidly with a distance and low
magnetic field amplitude will present a practical problem at 5 to
If you are a member of the new England IEEE EMC Society and interested in
attending this meeting - please, respond now.
Central New England IEEE EMC Society meeting on December 8, 1999 - at
Franklin, EMI Chamber
Note: EMC Corp. staff will conduct a tour of the new 10-meter semi-anechoic
The FCC allowed GTEMs to be used as an alternative test site for making
radiated emissions measurements under Part 15 of the FCC rules on Dec 2
1993 via public notice #40830.
Regarding correlation measurements: this Public Notice states that
Acceptable comparison data must be filed with the
This is one of many Basic EMC standards that exist, but are not required for
complinace by Product or Product Family standards. All of these other basic
standards have been requested by some part of industry (that's how they get
started), but that doesn't mean they are applicable in any broad
Yes that is correct.
BTW, how does one do the volumetric
site attenuation in a GTEM?
-Original Message-
From: wolfgang_josenh...@3com.com [mailto:wolfgang_josenh...@3com.com]
Sent: Monday, November 29, 1999 8:26 AM
To: Grasso, Charles (Chaz)
Cc: emc-p...@majordomo.ieee.org;
I use a Yokogawa Type 3226 Universal Leakage Current Meter
which is quite old, (10 years ++) and can measure ac current,
dc current, and dc+ac current, with input resistances of 1,
1.5 and 2 kohms.
I also have a Simpson 229-2 (also quite old) which gives me very
similar results to the above.
Around the 14th and 15th of October 1999 there was a flurry of
information and concerns regarding exporting ITE equipment to China. I
have been watching since and have not seen many follow ups.
Does anyone have any updates regarding exporting to China. The
I guess I am floating out again towards the outer edges of the groups
remit.
But I have come across some information regarding packaging which
might be of interest to anyone selling in Europe.
As of the beginning of Year 2000 (if we get there) it will be an
offence in Europe to pack things
Peter,
Such a typical 7' frame can be found in GR-63-CORE, page 2-8, figure 2-5.
Regards,
Naftali Shani, Nortel Networks, Dept. 0S45, MS 117/C1/N04
21 Richardson Side Road, Kanata, Ontario, Canada K2K 2C1
Voice +1.613.765.2505 (ESN 395) Fax +1.613.763.3365 (ESN 393)
E-mail:
I received the following announcement from IEC:
IEC 61000-4-28 (1999-11) - Electromagnetic compatibility (EMC)
- Part
4-28: Testing and measurement techniques - Variation of power
frequency,
immunity test
Establishes a reference for evaluating the immunity of electric
and
electronic equipment
The Atlanta newspaper re-published the Washington Post article (front page
above the fold) in the Sunday edition. Nothing sells papers like fear.
Fear that the toys and Christmas lights in one's home may not be safe, even
if they bear a safety mark.
After all, why pay one of your own reporters
Hello All,
For signal transmission equipment to be used within cellular base stations,
what is the correct category for North America? Since cellular type base
stations are evaluated to UL1950/CSA C22.2 950 Third Edition in North
America, does the signal transmission equipment inside have to
Hello from Tel Aviv!
In Europe, we understand that requirements for equipment intended for beta
sites must have a prominent warning sign on equipment stating
non-compliance with the applicable Directives. Also, the equipment must be
under the ownership of the manufacturer and must be operated
Dear Group,
Clause 9.10.1.5 of the GR1089 Requirements calls out an open unequal
7-foot framework with minimal enclosure. Does someone have a picture of
this type of framework? Maybe a better description? Maybe a link to a site
with photos?
Thanks,
+++
RTTE
Peter,
I own and once used a Simpson 228 and was told that it did not comply with
the test requirements of '950. So I bought the Simpson 229-2 and that was
accepted. Since then, the standard was changed again and the 229-2 was no
longer compliant. I ended up buying an EDD LT-951 Leakage Current
Greetings Israel,
A standard that we use is EN 1012-1 Compressors and Vacuum Pumps - Safety
Requirements. Depending on the size of the equipment, the Pressure Directive
or Pressure Equipment Directive may also apply.
Regards,
Ray Russell
ray_russ...@gastmfg.com
-Original Message-
Tony's comments are well made. Although the principle of CE Marking is clear,
some companies take advantage of the low probability of being caught. The real
safety (and EMC) hazards are not caused so much by companies relying on outside
certification as by others (especially importers into the
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