Jon Baer wrote:
> Agency Probes D.C. Wireless Network
> The Associated Press
> Sep 29 2002 1:40PM
> [...]
> A Pringles can is ideal because of its shape - a long tube that lets
> someone to point it at specific buildings - and its aluminum inner
> lining. It acts like a satellite dish, collecting signals and bouncing
> them to the receiver, which is then wired into a laptop.

My own measurements indicate that the aluminum-colored lining of the
tube is not an electric conductor, and thus the Pringles antenna is
not a waveguide antenna (and not a satellite dish either, obviously).
Instead, I think it is a yagi antenna.  Can anyone confirm or deny
this?  Other models described on the web have the same rod-and-washers
(yagi directors) but a plastic tube instead of the Pringles can.

http://www.oreillynet.com/cs/weblog/view/wlg/448
http://www.netscum.com/~clapp/wireless.html


-- 
  Lars Aronsson ([EMAIL PROTECTED])
  Aronsson Datateknik
  Teknikringen 1e, SE-583 30 Linuxköping, Sweden
  tel +46-70-7891609
  http://aronsson.se/ http://elektrosmog.nu/ http://susning.nu/

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