I see that we are mixing terms in this thread. *Stability* and *Accuracy* are two different things, and one does not imply the other. Those expecting better *accuracy* with the addition of software compensation may be dissapointed (read on for more info).
The high stability TCXO will not necessarily provide better *accuracy* than the standard TCXO, and method 3 will also not necessarily provide better accuracy. Method 3 will only provide tighter control over temperature excursions. Accuracy is the ability to hit the target in the center of the bullseye. Method 2 will provide accuracy just as close as Method 3, but Method 2 lacks the temperature compensation part. Stability is the ability to hit the target at the *same* place all the time - even though that may be far from the bullseye. And that is the part that will be improved with the software temperature compensation. What the high stability TCXO offers is *stability* over a temperature range. If your K3 is never subjected to great temperature excursions, there may be little or no difference between the 2 Elecraft TCXO offerings (yes, both are TCXOs, but one is spec'ed at 1% while the other is spec'ed at 5% by the TCXO manufacturer). The 1% spec'ed TCXO was to provide an overall 0.5% stability over temperature for the entire K3. The high stability TCXO already provides the K3 with its advertised 0.5% stability, so what Wayne and Eric envisioned as needing software compensation to provide the 0.5% stability 'does the deed' even without that compensation. But Wayne has stepped up to the plate and offered a software compensated stability of up to twice the specified value - so just wait a while. You have all that was advertised already, but it will get better than that if one is patient. 73, Don W3FPR Radio Amateur N5GE wrote: > I think you and Gary missed the point, Johnny. The optional TCXO was > advertised to provide a certain better accuracy with software aid, but > as it turns out, the optional TCXO, doesn't need the firmware upgrade > to provide the advertised accuracy made possible by the firmware > upgrade. > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
