Re: Thorn EMI 'D.R.O. Box' - information requested



I would guess the size of the resonator would put it around 2 - 2.5 GHz, I have a similar size one in an old CML 24 GHz video link although mine has a separate isolated tuning line with a varicap at its end that runs partly around the resonator.

The DRO was used as a reference to lock the Tx and RX Gunn oscillators at 24G.

Sorry can't help with the supplies, let us know what you find.



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