[Elecraft] OT: Bird Wattmeter "meter failures"

CR ka5s at earthlink.net
Sun Nov 22 08:10:00 EST 2015


On 11/22/2015 6:34,  Brian K3KO wrote
> ... some commercial scopes these days come with probes that are inadequate for the bandwidth of the scope they are connected to.

If you don't need to probe HV or more than about 1 KOhm, the probes, (or 
indeed, the whole setup) used in Doug Smiths came up with for balanced 
HF probing looks like a good alternative to"what came with" probes. from 
1994: Balanced Scope Probe Extends High Frequency Measurements, 
http://emcesd.com/pdf/cd94scr.pdf


Tek has good literature on probes; go to 
http://info.tek.com/www-abcs-of-probes-primer.html  (they'll need your 
name, email, location and company -- IIRC, "self" might work) and look 
at page 35.


Cortland KA5S


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