We are talking about two different kinds of radiation. X-rays are of the
category called ionizing radiation. They do their damage by stripping
electrons off of atoms. Non-ionizing radiation, such as radio waves, do
their (known) damage by heating tissue beyond its ability to dissipate the
I don't think that's the right web link. It talks about the travails of moving
house in New York! I think you meant to add a Y.
George Waters
wo...@sensormatic.com wrote:
The best source of information is Raymond Communications. They publish
Recycling Laws International. That's where I
Hello once again,
I have already received a number of replies to my query indicating that the
metallic enclosure is required for low inductance coupling to the components
or to prevent radiation between circuits within the product. This is not my
question.
Please remember that one of the
Listmembers:
I have a question that perhaps some of you can help me with. I'm developing
a regulatory compliance plan for a new telecom product that is scheduled to
begin shipping in the first quarter of 2000. The exact date is not certain,
but it is likely to be before the April 8, 2000
Hello Doug,
I think the enclosure of EMI filters is necessary.
The enclosure (normally metallic and, if the filter should work well,
connected to ground) prevents, that for example by radiation, disturbing
signals could get into your filtered equipment.
The filter would be bypassed.
Regards
Doug,
We have a piece of I.T.E. equipment that we designed that has dual power
supplies with an EMI filter on the AC input of both supplies. We designed
our own filters for this particular unit. They are simply small through-hole
PC Boards (about 1 x 4) with the components (inductors and
Actually, the concern is worldwide. It starts with IEC 60825-1 which covers
emissions from lasers and LEDs. IEC 950 has a normative reference to IEC 825
(an earlier revision of IEC 60825-1). IEC950 says that the national members
are encouraged to apply the latest revisions of the normative
Hello group,
For years I have used off-the-shelf and custom EMI filters with a fully
enclosed metal canister. Why is this enclosure required? Are there
specific provisions in the standards? My idea is to build up the filter
circuit on a printed circuit board and make it an integral part of
-Original Message-
From: geor...@lexmark.com [mailto:geor...@lexmark.com]
Sent: Monday, December 06, 1999 12:56 PM
To: emc-p...@majordomo.ieee.org
Subject:RE: Cell Phone Hazards?
. . .
I'll ask our county supervisors (they occupy this building, too)
- Robert -
-Original Message-
From: Bailin Ma b...@anritsu.com
To: 'Robert Macy' m...@california.com; Edward Fitzgerald
edward.fitzger...@ets-tele.com
List-Post: emc-pstc@listserv.ieee.org
Date: Wednesday,
All,
Be aware that an Australia test house has been infected with the PRETTY
PARK.EXE virus and it appears emial is being sent to their email address
listings with the Prett Park.exe virus attached.
The email details are:
FromGunther Theisz
Subject of
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