View Single Post
  #24   Report Post  
Old May 11th 04, 08:01 AM
Cecil Moore
 
Posts: n/a
Default

Reg Edwards wrote:
Its weakest feature is the probe mechanism itself. Its electrical presence
is unpredictable. Incalculable. Uncertainty can only be minimised.


I remember making some measurements on half-inch 75 ohm coax at
Texas A&M by simply pushing the braid away from a place on the
inner insulation and drilling a small hole to the center conductor.
We used an RF VTVM probe. I remember seeing the effects of
standing voltage waves but I have no idea what the accuracy
was.
--
73, Cecil http://www.qsl.net/w5dxp



-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 100,000 Newsgroups - 19 Different Servers! =-----