High precision TCXOs

While I was away, I received 2 TCXOs for 25MHz, with a claimed accuracy of 0.1 ppm. For 10GHz this would mean less than 1kHz drift/offset in the temperature range 0-40 at least when the oscillator is adjusted properly.

If the oscillator is put in an insulated (e.g. foam) casing, the drift should be slow enough for the LNB (converter) or TX up-converter LO, to be quite useable for SSB/CW activities. On top of this, it should be possible to find stations, knowing the frequency within 1kHz.

It has to be tested if the oscillator has a low enough phase noise, because some people have reported high phase noise, but there are also claims that it can be improved with a better DC regulator, or just a larger electrolytic capacitor at the output of the regulator.  Investigation will follow given the time. I am working on a report of the travel I had, too.