Ed Price wrote:
BTW, audio provides a dramatic lab effect and should always be used
during executive
tours of your lab.
Back in '91 or so, at a large electronics retailer's RD operation, I was
doing a prescan of an EUT with a CD-player/CD-ROM drive in it. Testing
with a bunch of corporate
Lisa,
On the expensive end, Noise-Ken has been at Symposia (which I can't afford
this year) with a sniffer. It apparently uses four or five broadly tuned
peak detectors and gives a bar-graph display for each band as its sensor is
brought near the EUT. But, like others, I've found that a
-Original Message-
From: Gert Gremmen [mailto:g.grem...@cetest.nl]
Sent: Thursday, August 22, 2002 1:06 PM
To: Bill Morse; 'Cortland Richmond'; ieee pstc list
Subject: RE: Emissions quick test
The technique of temperature variation is that
sensible, that heating up the *enclosure
22 augustus 2002 19:01
To: 'Cortland Richmond'; Bill Morse; ieee pstc list
Subject: RE: Emissions quick test
Yep, they're many ways of doing it. Heating the crystals and watching the
frequency of interest for variation, disabling the clocks one at a time,
come to
mind.
They all have their uses
2002 19:01
To: 'Cortland Richmond'; Bill Morse; ieee pstc list
Subject: RE: Emissions quick test
Yep, they're many ways of doing it. Heating the crystals and watching the
frequency of interest for variation, disabling the clocks one at a time,
come to
mind.
They all have their uses
]
Sent: Wednesday, August 21, 2002 2:37 PM
To: Bill Morse; ieee pstc list
Subject:RE: Emissions quick test
Just a note about telling clocks apart... unless they're phase locked
(sometimes even then) a receiver with a BFO can let you distinguish from
among clocks only 100's of Hz apart
Just a note about telling clocks apart... unless they're phase locked
(sometimes even then) a receiver with a BFO can let you distinguish from
among clocks only 100's of Hz apart. Sometimes it can let you tell which
of several clocks is slower to lock as well, as you can hear the varying
tone
Joe Martin wrote:
Credence Technologies manufactures a probe with a built in low noise
amplifier
Ohmygosh, yes. How could I have forgotten THEM! An untuned probe, with
output to a scope or analyzer, too. Neat tool.
I spent a fun half hour or so talking to their very bright son last year
[mailto:lisa_cef...@mksinst.com]
Sent: Tuesday, August 20, 2002 1:35 PM
To: emc-p...@majordomo.ieee.org
Subject:Emissions quick test
Hi all,
Does anyone know of a down- and- dirty , inexpensive method or equipment
for sniffing out emissions issues? I've used a Spectrum Analyzer in the
past
:
o.ieee.org Subject: Emissions
quick test
: lisa_cef...@mksinst.com [mailto:lisa_cef...@mksinst.com]
Sent: Tuesday, August 20, 2002 4:35 PM
To: emc-p...@majordomo.ieee.org
Subject: Emissions quick test
Hi all,
Does anyone know of a down- and- dirty , inexpensive method or equipment
for sniffing out emissions issues? I've used a Spectrum
Try Laplace www.laplace.co.uk
Cheers
Alan E Hutley
EMC Compliance Journal
www.compliance-club.com
- Original Message -
From: lisa_cef...@mksinst.com
To: emc-p...@majordomo.ieee.org
Sent: Tuesday, August 20, 2002 9:34 PM
Subject: Emissions quick test
Hi all,
Does anyone know
Subject: Emissions quick
test
mo.ieee.org
I have used a little portable transistor radio for system
sniffing of a system with low level freqs and with already
knowing the problem freqs.
Regards, Doug McKean
---
This message is from the IEEE EMC Society Product Safety
Technical Committee
-Original Message-
From: lisa_cef...@mksinst.com [mailto:lisa_cef...@mksinst.com]
Sent: Tuesday, August 20, 2002 1:35 PM
To: emc-p...@majordomo.ieee.org
Subject: Emissions quick test
Hi all,
Does anyone know of a down- and- dirty , inexpensive method
or equipment
for sniffing out
EMCO/ETS makes a probe kit with a preamp for under $1000. Several probes,
E- and H-field. Electro-metrics makes the same kind of kit, but without the
pre-amp, per my recollection. I think Com-power might also do this kind of
thing, and be the low price vendor as well. If the EUT is noisy and
Hi all,
Does anyone know of a down- and- dirty , inexpensive method or equipment
for sniffing out emissions issues? I've used a Spectrum Analyzer in the
past with a series of different probes, but that tends to be costly. Also,
Is there a universal probe kit out there?
Thank you in advance.
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