Warren wrote:
I'm curious how you determined that the oscillators are being held
to within femtoseconds of each other.
I done it several ways including measuring the PD output.
You seem to be missing how insignificant an 1-e6 injection locking
to EFC gain ratio is.
I can't detail, to your satisfaction, all the hundreds of test that
show no significant effect of so many different things.
For an independent test that may help you with things you missed see:
http://www.ke5fx.com/tpll.htm
There you go again, accusing someone else of missing something. I
have never said I thought your method doesn't work. I said its
operation needs to be characterized if technically oriented folks are
to be expected to take you seriously. "See, it works!" is just not
sufficient characterization to achieve this, IMO, and that is all you
seem to offer -- references to John's tests included. I inquired how
you determined phase locking down to femtosecond levels, and all you
can say is that you "measured the PD output" among other
ways. That's like a cosmologist saying (s)he "measured the positions
of some stars, among other things" to determine the gravitational
constant, which is fine for an interview in People magazine but
inadequate for a technical audience. What phase detector did you
use? What are its characteristics and limits? With what did you
measure its output? What results did you get (at the very least, a
descriptive summary of your dataset)? How do those results support
an inference of locking to within femtoseconds? What other ways did
you use to determine locking error besides measuring the PD
output? You imply that the ratio of the injection gain to EFC gain
in your system is 1E-6. How did you measure the injection
gain? What were the results (at the very least, a descriptive
summary of your dataset), and how do they support an inference to the
1E-6 figure?
Best regards,
Charles
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