That's "good enough" agreement for me:-)
Wes N7WS
On 1/5/2018 3:30 AM, Steve Hunt wrote:
Measuring high-Z chokes accurately is challenging, and it's easy to become
obsessive about this stuff. I know because I'm probably one of the worst
offenders :)
But then I ask myself:: if an uncompensated 0.5pF jig capacitance, or
uncompensated jig leads 1 inch long, cause an error in the choke measurement
that is operationally significant, variations in choke installation method
will likely have the same effect and more. On top of that we have to remember
the tolerance in ferrite characteristics - variously quoted as 25%. So why
strive for measurement accuracy that has little direct relevance to most
real-world installations?
Steve G3TXQ
On 03/01/2018 12:54, Wes Stewart wrote:
In my opinion, and with my equipment, a two-port through measurement is
probably the better method. That said there a lot of folks with one-port
measurement equipment who can make "good enough" measurements on common-mode
chokes.
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