[time-nuts] Frequency of LC Tank.

paul swed paulswedb at gmail.com
Fri Apr 11 18:30:54 EDT 2014


I would have done exactly what Hal said. I do this all the time when trying
to figure out the LC tanks operating frequency. An example keeping this
time nuts friendly, the d-psk-r circuits at 60 Khz. I am lucky in that I
can add or subtract C on the stuff I work on.
Regards
Paul
WB8TSL


On Fri, Apr 11, 2014 at 6:05 PM, Hal Murray <hmurray at megapathdsl.net> wrote:

>
> > I have a large LC tank, with a very lossy inductor. ...
>
> > So the question is, when actively driving a tank circuit, how do you know
> > you are driving it with the same frequency ad the same phase it naturally
> > oscillates at.
>
> If it's lossy, the peak will be broad so tuning the driving frequency won't
> be critical.
>
> How about just measuring the amplitude and tune for a max?  I'm thinking of
> something like a diode and R/C filter feeding an ADC.
>
>
> --
> These are my opinions.  I hate spam.
>
>
>
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