Re: OCXO drift with U3S #u3s #ocxo


Sverre Holm
 

The solution to the problem I had of drift with the OCXO was much simpler than I had thought: To my embarrassment connecting the heater to + 5 Volts made all the difference!

It turned out that I had done the OCXO initial adjustment using my old U3 which had the heater connected to the Vcc. When I moved it to my newer U3S I got drift. But it was all resolved when the heater was connected.


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Sverre

LA3ZA, http://la3za.blogspot.com

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