Gentlemen:
I will further detail the question I presented earlier.
I am looking for a host desktop computer with USB port(s) that pass CISPR 22B
when connected to a USB peripheral that is actively transferring information.
The various computers I have tested thus far pass with flying colors
Gentlemen:
I will further detail the question I presented earlier.
I am looking for a host desktop computer with USB port(s) that pass CISPR 22B
when connected to a USB peripheral that is actively transferring information.
The various computers I have tested thus far pass with flying colors
To: All
Subject:Need sanity check for one point of antenna theory
Here goes:
The gain of any antenna is referenced to a theoretical isotropic
radiator. A half wave resonant dipole (in free space) has a gain of 2.15 dB
over an isotropic source; hence it's rated at
To: All
Subject: Need sanity check for one point of antenna theory
Here goes:
The gain of any antenna is referenced to a theoretical isotropic
radiator. A half wave resonant dipole (in free space) has a gain of 2.15 dB
over an isotropic source; hence it's rated at 2.15 dBi.
A quarter wave, end
Greetings,
I'm thinking about writing an article on techniques for
board-level EMI measurements. For example, one person I
know uses a paper clip to measure radiated EMI from a
microprocessor chip. I'd like to include techniques for
measuring EMI anywhere within an enclosure, but not
outside
Hi Martin,
If we want to measure the noises from the signal tracks, we are normally
using a good quality (low loss) coaxial cable, one end attached to a
resistor, the other end connect to the receiver/SA. The other end of
the resistor can be poking to the signal tracks.
The other technique is
This isn't exactly a board-level EMI measurement, but along the lines of
slightly unorthodox methods of working: I have used a piezoelectric barbecue
lighter, with the gas canister removed, and the cover over the electrode at the
tip cut off, as a cheap and (very) uncalibrated source of esd. It
In a message dated 97-07-16 08:59:50 EDT, Chris Wells writes:
I agree with Ed
The attachement restrictions are quite frustrating.
Perhaps we could impose a file size restriction as a compromise.
Chris Wells
well...@ch.etn.com
Cutler-Hammer
This seems very reasonable. Could we
Chris, you have made an excellent point about the THD problems and how
they affect the power factor. To help summarize this e-mail thread,
there are really two sources for the power factor shift.
1) Harmonics generated as you described from the peak-charge effect on
power supply front ends.
2)
In a message dated 97-07-16 11:27:44 EDT, Peter Tarver writes:
However, I do see a problem with sending even small graphics in e-mail.
Many of the subscribers to this listserver do not have T3 pipes coming
into their businesses or subscribe through accounts that are through AOL
(the very
-- Forwarded Message --
From: Chris Dupres, 100014,3703
TO: INTERNET:mvald...@netvision.net.il,
INTERNET:mvald...@netvision.net.il
DATE: 7/16/97 7:11 AM
RE: Copy of: reduction of leakage current
Hi Moshe.
You asked:
Assuming the power supplies and line filter I'm
I must reluctantly agree with Pete. The technology is not quite there
yet to allow graphics. Soon, I hope.
--
From: Peter Tarver
Subject: RE: Graphics in posts
However, I do see a problem with sending even small graphics in e-mail.
I would like to align my vote with Brent DeWitt.
Simply ask who wants a particular file then send it directly to the
person requesting the input.
Charles Grasso
EMC Engineer
StorageTek
gra...@louisville.stortek.com
Tel:(303)673-2908
Fax(303)661-7115
--
From:
My information from the Czech Republic is that their press is announcing
dates of final admission into the EU of 2002 to 2005! (NATO admission
is looking like 1999...) Therefore, the only short-term benefit I can
see would be if some of these potential members begin to accept CE
marking earlier
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