FreeLists / si-list / [SI-LIST] simulating mobile phone effects on circuits

[Doug Smith <doug@xxxxxxxxxx>]

I have been writing again, this time on how to simulate mobile phone 
effects on your circuits without spending US$30,000 on specialized 
test equipment.

Mobile phones and other wireless devices can cause problems when they 
are in very close proximity to equipment. This Technical Tidbit 
discusses an easy to build antenna useful in tracking down such problems.

Abstract: A simple antenna is described that is easily made from 
coaxial cable and is useful for troubleshooting purposes. It is 
balanced and does not require a balun to be fed from coaxial cable. 
Such an antenna has many uses around the lab.

The link to the article is the picture of the experimental test setup 
at the bottom of the home page at http://emcesd.com .

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On a separate note: I enjoyed listening to the 17 minute to CE podcast 
posted to this list by Stuart Miller and I would encourage others on 
the list to post podcasts on topics of interest to the list members.

There are some cautions though. One person who started podcasting 
faced something like a US$30,000 bill from his Internet hosting 
provider at the end of the first month! I will be adding podcasts in 
quick succession this week and next on http://emcesd-p.com/podcast. 
One of these will be how to avoid the pitfalls (like a $30,000 bill at 
the end of the month) and other tips.

Just purchased some pro-audio equipment, getting serious about 
podcasting. Starting shortly, the signal to noise ratio on my podcasts 
will be improved 20 dB or more. By the end of the week, my laptop will 
be a well equipped recording studio (hardware and software) for field 
interviews of people in SI, EMC, and related fields. I hope to put on 
some good shows for this group.

Doug
-- 
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     ___          _       Doug Smith
      \          / )      P.O. Box 1457
       =========          Los Gatos, CA 95031-1457
    _ / \     / \ _       TEL/FAX: 408-356-4186/358-3799
  /  /\  \ ] /  /\  \     Mobile:  408-858-4528
|  q-----( )  |  o  |    Email:   doug@xxxxxxxxxx
  \ _ /    ]    \ _ /     Website: http://www.dsmith.org
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