Mark,
What kind of probe are you using on your external frequency counter?
You should be using a 10x probe like you would use on an oscilloscope to
keep the loading of the circuit by the probe capacity to a minimum.
73,
Don W3FPR
On 4/21/2019 11:30 AM, Mark Yergin wrote:
I found that when both my external FC probe and the probe provided by the
kit were attached to TP3 the K2 frequency reading was lowered significantly
(~12070 from about 12098) vs when measured separately. C22 could not make
a match. Separately the two measurements were fairly close, and I could
use C22 to make them the same using the hold feature on my external FC to
capture it's reading, and adjusting C22 to match it on the K2 with only the
kit probe attached. Is this OK? The manual talks about having both
connected at the same time, but the interaction of the two was an issue for
me.
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