3rd overtone? Not sure what you mean.

John

--- Richard Prosser <rhprosser@gmail.com> wrote:

> It's not a crystal designed to work in 3rd overtone
> mode is it?
> RP
> 
> On 15/11/06, Przemyslaw Lopaciuk
> <pic@amusementcity.com> wrote:
> > Hi,
> > I'm using PIC18F8621 with 40 MHz crystal and I've
> just tested it with an oscilloscope.
> > The odd thing is that it shows that the frequency
> is about 13MHz on both outputs (X1 and X2).
> > What could be the reason of it? Load capacitance?
> >
> > I would be very grateful for every advice.
> >
> > Thank you,
> > Sam
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