[time-nuts] Locking gunn diode

[Didier Juges]

Rick,

If you are talking about injection locking, that will probably not be 
practical. The Gunn is not stable enough (not the Gunn itself, but the 
cavity where it will be installed) to stay close enough to the right 
harmonic to stay locked, and the high order difference between the gunn 
and the injection signal makes it just about impossible. Even if you 
could lock it, you probably would have 10 MHz spurs (I am just guessing).

Phase locking through a PLL system is possible of course, even though it 
will be relatively complicated, unless you find one of these synthesizer 
boards on eBay, designed for YIG oscillators, and modify it to drive a 
varactor.

Didier KO4BB

stork3264 at comcast.net wrote:
> 12-18-06
>
> Is it possible to lock a 10ghz gunn diode transceiver (supply voltage 10.00 vdc) to a 10 mhz standard?  Signal applied to either gunn diode or varactor supply voltages.
>
> Rick 
>
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