Phil, Your assumptions are correct - all of that is true. Use Method 2. The typical 1ppm TCXO provides the speced temperature stability of .5ppm, so the specification is met even though the temperature compensation is not available. Wayne is working on an algorithm that will provide .25 ppm stability with the temperature compensation, so if you wait a while, you will have better than speced stability.
In the meantime. K3 Utility has provided a way to enter the 1ppm TCXO into the K3 data tables. Nothing is done with that data presently - it must wait for Method 3 to be available in the firmware. 73, Don W3FPR Phil Hystad wrote: > Gang, > > I am in that part of the K3 calibration and configuration steps called > "Reference Oscillator" in the Owner's Manual (page 50). And, I am confused. > > There is an errata sheet that says that the K3 Utility has an added TXCO > calibration data entry screen but I do not find it on my running version of > the K3 Utility. I just downloaded this version of the K3 utility tonight. > > Also, the errata sheet goes on to say that the calibration information > entered using the K3 utility is not yet used by the K3 firmware. Now, give > this fact, does this mean, that the calibration procedure described as > "Method 3" on page 50 of the owner's manual is not available to me. > > If I can't use method 3 then I presume that I must rely on method 1 or 2 and > since I do not have a frequency counter with the +1/-1 Hz accuracy then I > would have to use method 2. Is this true? > > Thanks for the help. > > 73, phil, K7PEH > Brand new K3 serial number 3799. > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html