[time-nuts] WWVB phase modulation test April 15-16

Charles P. Steinmetz charles_steinmetz at lavabit.com
Thu Apr 12 23:14:42 UTC 2012


Hal wrote:

>How many of you have used the Tek scope-probe to BNC adapter?  I tried a bit
>but couldn't find anything on the web.  The idea was (roughly) that you put a
>BNC Tee in the line you wanted to watch and this magic gizmo on the Tee.

I have some.  I don't use them often, but they are very useful on 
occasion (when you want to insert a sampling port in coax with 
minimal disturbance to the line).  You normally use them with 10x 
probes to minimize the capacitive loading at the sampling port.  They 
used to appear on eBay quite frequently for $2-$5 each, but for the 
last year or so sellers seem to be very proud of them.

Note that you need one that matches your probe tip (5 mm, 3.5 mm, or 
2.5 mm ground sleeve).

Best regards,

Charles









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