if you have enough buffering -- look for now noise amplifiers, which have low h12 [= "backward gain " ] a quartz oscillator will not lock so easy


On 7/19/2014 5:24 PM, Attila Kinali wrote:
On Sat, 19 Jul 2014 16:45:14 -0400
paul swed <[email protected]> wrote:

Attilla I did look at some of the documents. But none showed practical HF
class injection locking. Say as an example a 6 MHz xtal to a 1 or 2 MHz
reference.
It maybe as easy as a single transistor in the oscillators ground lead.
Always on till a brief pulse from the 1 or 2 MHz ref cuts it off. I think I
just talked myself into an attempt.
Yes, most of the papers in this area are quite theoretic. So far i've
not found anything applicable to time-nuts kind of use. Those papers
that deal with real world injection locking are mostly for integrated
circuits (90° phase shifter, frequency doubler or divider) and thus
are quite specific to the environments there.

I have not gone trough the math in detail and calculated what would
would come out in a injection locked quartz crystal. Maybe i should sit
down and do the math...

                        Attila Kinali

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